cpython-lru_cache-weakref: Modules/itertoolsmodule.c annotate

annotate Modules/itertoolsmodule.c @ 64166:d0e9febfa00a 3.1

Merged revisions 84172 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k ........ r84172 | martin.v.loewis | 2010-08-18 18:12:23 +0200 (Mi, 18 Aug 2010) | 2 lines Restore GIL in nis_cat in case of error. ........

author	Martin v. Löwis <martin@v.loewis.de>
date	Thu, 19 Aug 2010 09:03:03 +0000
parents	4467c4c1d38e
children	6799d54db378

rev	line source
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2 #include "Python.h"
33779 c66e6c9ffc2d some platforms still need offsetof() from structmember.h Fred Drake <fdrake@acm.org> parents: 33777 diff changeset	3 #include "structmember.h"
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	4
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	5 /* Itertools module written and maintained
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	6 by Raymond D. Hettinger <python@rcn.com>
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	7 Copyright (c) 2003 Python Software Foundation.
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	8 All rights reserved.
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	9 */
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	10
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	11
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	12 /* groupby object ***********************************************************/
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	13
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	14 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	15 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	16 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	17 PyObject *keyfunc;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	18 PyObject *tgtkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	19 PyObject *currkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	20 PyObject *currvalue;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	21 } groupbyobject;
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	22
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	23 static PyTypeObject groupby_type;
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	24 static PyObject _grouper_create(groupbyobject , PyObject *);
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	25
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	26 static PyObject *
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	27 groupby_new(PyTypeObject type, PyObject args, PyObject *kwds)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	28 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	29 static char *kwargs[] = {"iterable", "key", NULL};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	30 groupbyobject *gbo;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	31 PyObject it, keyfunc = Py_None;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	32
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	33 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O\|O:groupby", kwargs,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	34 &it, &keyfunc))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	35 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	36
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	37 gbo = (groupbyobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	38 if (gbo == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	39 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	40 gbo->tgtkey = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	41 gbo->currkey = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	42 gbo->currvalue = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	43 gbo->keyfunc = keyfunc;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	44 Py_INCREF(keyfunc);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	45 gbo->it = PyObject_GetIter(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	46 if (gbo->it == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	47 Py_DECREF(gbo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	48 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	49 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	50 return (PyObject *)gbo;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	51 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	52
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	53 static void
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	54 groupby_dealloc(groupbyobject *gbo)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	55 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	56 PyObject_GC_UnTrack(gbo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	57 Py_XDECREF(gbo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	58 Py_XDECREF(gbo->keyfunc);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	59 Py_XDECREF(gbo->tgtkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	60 Py_XDECREF(gbo->currkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	61 Py_XDECREF(gbo->currvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	62 Py_TYPE(gbo)->tp_free(gbo);
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	63 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	64
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	65 static int
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	66 groupby_traverse(groupbyobject gbo, visitproc visit, void arg)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	67 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	68 Py_VISIT(gbo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	69 Py_VISIT(gbo->keyfunc);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	70 Py_VISIT(gbo->tgtkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	71 Py_VISIT(gbo->currkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	72 Py_VISIT(gbo->currvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	73 return 0;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	74 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	75
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	76 static PyObject *
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	77 groupby_next(groupbyobject *gbo)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	78 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	79 PyObject newvalue, newkey, r, grouper, *tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	80
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	81 /* skip to next iteration group */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	82 for (;;) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	83 if (gbo->currkey == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	84 /* pass */;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	85 else if (gbo->tgtkey == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	86 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	87 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	88 int rcmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	89
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	90 rcmp = PyObject_RichCompareBool(gbo->tgtkey,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	91 gbo->currkey, Py_EQ);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	92 if (rcmp == -1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	93 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	94 else if (rcmp == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	95 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	96 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	97
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	98 newvalue = PyIter_Next(gbo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	99 if (newvalue == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	100 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	101
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	102 if (gbo->keyfunc == Py_None) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	103 newkey = newvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	104 Py_INCREF(newvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	105 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	106 newkey = PyObject_CallFunctionObjArgs(gbo->keyfunc,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	107 newvalue, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	108 if (newkey == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	109 Py_DECREF(newvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	110 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	111 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	112 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	113
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	114 tmp = gbo->currkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	115 gbo->currkey = newkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	116 Py_XDECREF(tmp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	117
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	118 tmp = gbo->currvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	119 gbo->currvalue = newvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	120 Py_XDECREF(tmp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	121 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	122
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	123 Py_INCREF(gbo->currkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	124 tmp = gbo->tgtkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	125 gbo->tgtkey = gbo->currkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	126 Py_XDECREF(tmp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	127
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	128 grouper = _grouper_create(gbo, gbo->tgtkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	129 if (grouper == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	130 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	131
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	132 r = PyTuple_Pack(2, gbo->currkey, grouper);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	133 Py_DECREF(grouper);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	134 return r;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	135 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	136
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	137 PyDoc_STRVAR(groupby_doc,
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	138 "groupby(iterable[, keyfunc]) -> create an iterator which returns\n\
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	139 (key, sub-iterator) grouped by each value of key(value).\n");
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	140
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	141 static PyTypeObject groupby_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	142 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	143 "itertools.groupby", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	144 sizeof(groupbyobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	145 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	146 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	147 (destructor)groupby_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	148 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	149 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	150 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	151 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	152 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	153 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	154 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	155 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	156 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	157 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	158 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	159 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	160 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	161 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	162 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	163 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	164 groupby_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	165 (traverseproc)groupby_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	166 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	167 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	168 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	169 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	170 (iternextfunc)groupby_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	171 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	172 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	173 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	174 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	175 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	176 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	177 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	178 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	179 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	180 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	181 groupby_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	182 PyObject_GC_Del, /* tp_free */
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	183 };
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	184
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	185
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	186 /* _grouper object (internal) ************************************************/
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	187
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	188 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	189 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	190 PyObject *parent;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	191 PyObject *tgtkey;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	192 } _grouperobject;
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	193
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	194 static PyTypeObject _grouper_type;
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	195
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	196 static PyObject *
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	197 _grouper_create(groupbyobject parent, PyObject tgtkey)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	198 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	199 _grouperobject *igo;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	200
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	201 igo = PyObject_GC_New(_grouperobject, &_grouper_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	202 if (igo == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	203 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	204 igo->parent = (PyObject *)parent;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	205 Py_INCREF(parent);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	206 igo->tgtkey = tgtkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	207 Py_INCREF(tgtkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	208
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	209 PyObject_GC_Track(igo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	210 return (PyObject *)igo;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	211 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	212
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	213 static void
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	214 _grouper_dealloc(_grouperobject *igo)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	215 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	216 PyObject_GC_UnTrack(igo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	217 Py_DECREF(igo->parent);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	218 Py_DECREF(igo->tgtkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	219 PyObject_GC_Del(igo);
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	220 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	221
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	222 static int
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	223 _grouper_traverse(_grouperobject igo, visitproc visit, void arg)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	224 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	225 Py_VISIT(igo->parent);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	226 Py_VISIT(igo->tgtkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	227 return 0;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	228 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	229
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	230 static PyObject *
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	231 _grouper_next(_grouperobject *igo)
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	232 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	233 groupbyobject gbo = (groupbyobject )igo->parent;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	234 PyObject newvalue, newkey, *r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	235 int rcmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	236
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	237 if (gbo->currvalue == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	238 newvalue = PyIter_Next(gbo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	239 if (newvalue == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	240 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	241
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	242 if (gbo->keyfunc == Py_None) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	243 newkey = newvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	244 Py_INCREF(newvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	245 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	246 newkey = PyObject_CallFunctionObjArgs(gbo->keyfunc,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	247 newvalue, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	248 if (newkey == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	249 Py_DECREF(newvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	250 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	251 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	252 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	253
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	254 assert(gbo->currkey == NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	255 gbo->currkey = newkey;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	256 gbo->currvalue = newvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	257 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	258
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	259 assert(gbo->currkey != NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	260 rcmp = PyObject_RichCompareBool(igo->tgtkey, gbo->currkey, Py_EQ);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	261 if (rcmp <= 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	262 /* got any error or current group is end */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	263 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	264
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	265 r = gbo->currvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	266 gbo->currvalue = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	267 Py_CLEAR(gbo->currkey);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	268
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	269 return r;
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	270 }
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	271
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	272 static PyTypeObject _grouper_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	273 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	274 "itertools._grouper", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	275 sizeof(_grouperobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	276 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	277 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	278 (destructor)_grouper_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	279 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	280 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	281 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	282 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	283 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	284 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	285 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	286 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	287 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	288 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	289 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	290 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	291 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	292 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	293 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	294 0, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	295 (traverseproc)_grouper_traverse,/* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	296 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	297 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	298 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	299 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	300 (iternextfunc)_grouper_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	301 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	302 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	303 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	304 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	305 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	306 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	307 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	308 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	309 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	310 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	311 0, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	312 PyObject_GC_Del, /* tp_free */
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	313 };
fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	314
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	315
31136 fde74fadf780 Implement itertools.groupby() Raymond Hettinger <python@rcn.com> parents: 30900 diff changeset	316
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	317 /* tee object and with supporting function and objects ***************/
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	318
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	319 /* The teedataobject pre-allocates space for LINKCELLS number of objects.
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	320 To help the object fit neatly inside cache lines (space for 16 to 32
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	321 pointers), the value should be a multiple of 16 minus space for
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	322 the other structure members including PyHEAD overhead. The larger the
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	323 value, the less memory overhead per object and the less time spent
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	324 allocating/deallocating new links. The smaller the number, the less
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	325 wasted space and the more rapid freeing of older data.
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	326 */
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	327 #define LINKCELLS 57
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	328
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	329 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	330 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	331 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	332 int numread;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	333 PyObject *nextlink;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	334 PyObject *(values[LINKCELLS]);
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	335 } teedataobject;
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	336
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	337 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	338 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	339 teedataobject *dataobj;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	340 int index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	341 PyObject *weakreflist;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	342 } teeobject;
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	343
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	344 static PyTypeObject teedataobject_type;
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	345
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	346 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	347 teedataobject_new(PyObject *it)
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	348 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	349 teedataobject *tdo;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	350
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	351 tdo = PyObject_GC_New(teedataobject, &teedataobject_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	352 if (tdo == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	353 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	354
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	355 tdo->numread = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	356 tdo->nextlink = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	357 Py_INCREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	358 tdo->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	359 PyObject_GC_Track(tdo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	360 return (PyObject *)tdo;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	361 }
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	362
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	363 static PyObject *
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	364 teedataobject_jumplink(teedataobject *tdo)
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	365 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	366 if (tdo->nextlink == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	367 tdo->nextlink = teedataobject_new(tdo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	368 Py_XINCREF(tdo->nextlink);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	369 return tdo->nextlink;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	370 }
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	371
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	372 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	373 teedataobject_getitem(teedataobject *tdo, int i)
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	374 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	375 PyObject *value;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	376
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	377 assert(i < LINKCELLS);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	378 if (i < tdo->numread)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	379 value = tdo->values[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	380 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	381 /* this is the lead iterator, so fetch more data */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	382 assert(i == tdo->numread);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	383 value = PyIter_Next(tdo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	384 if (value == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	385 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	386 tdo->numread++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	387 tdo->values[i] = value;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	388 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	389 Py_INCREF(value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	390 return value;
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	391 }
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	392
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	393 static int
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	394 teedataobject_traverse(teedataobject tdo, visitproc visit, void arg)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	395 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	396 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	397 Py_VISIT(tdo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	398 for (i = 0; i < tdo->numread; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	399 Py_VISIT(tdo->values[i]);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	400 Py_VISIT(tdo->nextlink);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	401 return 0;
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	402 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	403
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	404 static int
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	405 teedataobject_clear(teedataobject *tdo)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	406 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	407 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	408 Py_CLEAR(tdo->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	409 for (i=0 ; i<tdo->numread ; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	410 Py_CLEAR(tdo->values[i]);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	411 Py_CLEAR(tdo->nextlink);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	412 return 0;
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	413 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	414
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	415 static void
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	416 teedataobject_dealloc(teedataobject *tdo)
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	417 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	418 PyObject_GC_UnTrack(tdo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	419 teedataobject_clear(tdo);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	420 PyObject_GC_Del(tdo);
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	421 }
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	422
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	423 PyDoc_STRVAR(teedataobject_doc, "Data container common to multiple tee objects.");
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	424
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	425 static PyTypeObject teedataobject_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	426 PyVarObject_HEAD_INIT(0, 0) /* Must fill in type value later */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	427 "itertools.tee_dataobject", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	428 sizeof(teedataobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	429 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	430 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	431 (destructor)teedataobject_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	432 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	433 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	434 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	435 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	436 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	437 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	438 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	439 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	440 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	441 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	442 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	443 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	444 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	445 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	446 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	447 teedataobject_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	448 (traverseproc)teedataobject_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	449 (inquiry)teedataobject_clear, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	450 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	451 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	452 0, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	453 0, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	454 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	455 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	456 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	457 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	458 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	459 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	460 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	461 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	462 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	463 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	464 0, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	465 PyObject_GC_Del, /* tp_free */
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	466 };
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	467
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	468
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	469 static PyTypeObject tee_type;
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	470
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	471 static PyObject *
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	472 tee_next(teeobject *to)
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	473 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	474 PyObject value, link;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	475
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	476 if (to->index >= LINKCELLS) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	477 link = teedataobject_jumplink(to->dataobj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	478 Py_DECREF(to->dataobj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	479 to->dataobj = (teedataobject *)link;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	480 to->index = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	481 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	482 value = teedataobject_getitem(to->dataobj, to->index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	483 if (value == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	484 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	485 to->index++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	486 return value;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	487 }
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	488
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	489 static int
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	490 tee_traverse(teeobject to, visitproc visit, void arg)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	491 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	492 Py_VISIT((PyObject *)to->dataobj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	493 return 0;
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	494 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	495
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	496 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	497 tee_copy(teeobject *to)
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	498 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	499 teeobject *newto;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	500
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	501 newto = PyObject_GC_New(teeobject, &tee_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	502 if (newto == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	503 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	504 Py_INCREF(to->dataobj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	505 newto->dataobj = to->dataobj;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	506 newto->index = to->index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	507 newto->weakreflist = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	508 PyObject_GC_Track(newto);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	509 return (PyObject *)newto;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	510 }
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	511
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	512 PyDoc_STRVAR(teecopy_doc, "Returns an independent iterator.");
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	513
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	514 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	515 tee_fromiterable(PyObject *iterable)
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	516 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	517 teeobject *to;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	518 PyObject *it = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	519
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	520 it = PyObject_GetIter(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	521 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	522 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	523 if (PyObject_TypeCheck(it, &tee_type)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	524 to = (teeobject )tee_copy((teeobject )it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	525 goto done;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	526 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	527
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	528 to = PyObject_GC_New(teeobject, &tee_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	529 if (to == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	530 goto done;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	531 to->dataobj = (teedataobject *)teedataobject_new(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	532 if (!to->dataobj) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	533 PyObject_GC_Del(to);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	534 to = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	535 goto done;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	536 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	537
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	538 to->index = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	539 to->weakreflist = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	540 PyObject_GC_Track(to);
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	541 done:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	542 Py_XDECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	543 return (PyObject *)to;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	544 }
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	545
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	546 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	547 tee_new(PyTypeObject type, PyObject args, PyObject *kw)
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	548 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	549 PyObject *iterable;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	550
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	551 if (!PyArg_UnpackTuple(args, "tee", 1, 1, &iterable))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	552 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	553 return tee_fromiterable(iterable);
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	554 }
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	555
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	556 static int
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	557 tee_clear(teeobject *to)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	558 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	559 if (to->weakreflist != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	560 PyObject_ClearWeakRefs((PyObject *) to);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	561 Py_CLEAR(to->dataobj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	562 return 0;
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	563 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36684 diff changeset	564
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	565 static void
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	566 tee_dealloc(teeobject *to)
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	567 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	568 PyObject_GC_UnTrack(to);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	569 tee_clear(to);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	570 PyObject_GC_Del(to);
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	571 }
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	572
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	573 PyDoc_STRVAR(teeobject_doc,
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	574 "Iterator wrapped to make it copyable");
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	575
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	576 static PyMethodDef tee_methods[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	577 {"__copy__", (PyCFunction)tee_copy, METH_NOARGS, teecopy_doc},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	578 {NULL, NULL} /* sentinel */
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	579 };
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	580
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	581 static PyTypeObject tee_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	582 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	583 "itertools.tee", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	584 sizeof(teeobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	585 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	586 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	587 (destructor)tee_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	588 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	589 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	590 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	591 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	592 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	593 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	594 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	595 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	596 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	597 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	598 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	599 0, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	600 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	601 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	602 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	603 teeobject_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	604 (traverseproc)tee_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	605 (inquiry)tee_clear, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	606 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	607 offsetof(teeobject, weakreflist), /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	608 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	609 (iternextfunc)tee_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	610 tee_methods, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	611 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	612 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	613 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	614 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	615 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	616 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	617 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	618 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	619 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	620 tee_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	621 PyObject_GC_Del, /* tp_free */
30764 b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	622 };
b948e775a79e Added itertools.tee() Raymond Hettinger <python@rcn.com> parents: 30240 diff changeset	623
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	624 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	625 tee(PyObject self, PyObject args)
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	626 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	627 Py_ssize_t i, n=2;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	628 PyObject it, iterable, copyable, result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	629
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	630 if (!PyArg_ParseTuple(args, "O\|n", &iterable, &n))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	631 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	632 if (n < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	633 PyErr_SetString(PyExc_ValueError, "n must be >= 0");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	634 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	635 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	636 result = PyTuple_New(n);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	637 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	638 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	639 if (n == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	640 return result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	641 it = PyObject_GetIter(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	642 if (it == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	643 Py_DECREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	644 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	645 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	646 if (!PyObject_HasAttrString(it, "__copy__")) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	647 copyable = tee_fromiterable(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	648 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	649 if (copyable == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	650 Py_DECREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	651 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	652 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	653 } else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	654 copyable = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	655 PyTuple_SET_ITEM(result, 0, copyable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	656 for (i=1 ; i<n ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	657 copyable = PyObject_CallMethod(copyable, "__copy__", NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	658 if (copyable == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	659 Py_DECREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	660 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	661 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	662 PyTuple_SET_ITEM(result, i, copyable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	663 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	664 return result;
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	665 }
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	666
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	667 PyDoc_STRVAR(tee_doc,
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	668 "tee(iterable, n=2) --> tuple of n independent iterators.");
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	669
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	670
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	671 /* cycle object **********************************************************/
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	672
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	673 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	674 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	675 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	676 PyObject *saved;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	677 int firstpass;
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	678 } cycleobject;
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	679
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	680 static PyTypeObject cycle_type;
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	681
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	682 static PyObject *
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	683 cycle_new(PyTypeObject type, PyObject args, PyObject *kwds)
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	684 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	685 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	686 PyObject *iterable;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	687 PyObject *saved;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	688 cycleobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	689
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	690 if (type == &cycle_type && !_PyArg_NoKeywords("cycle()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	691 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	692
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	693 if (!PyArg_UnpackTuple(args, "cycle", 1, 1, &iterable))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	694 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	695
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	696 /* Get iterator. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	697 it = PyObject_GetIter(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	698 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	699 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	700
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	701 saved = PyList_New(0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	702 if (saved == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	703 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	704 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	705 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	706
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	707 /* create cycleobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	708 lz = (cycleobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	709 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	710 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	711 Py_DECREF(saved);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	712 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	713 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	714 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	715 lz->saved = saved;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	716 lz->firstpass = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	717
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	718 return (PyObject *)lz;
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	719 }
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	720
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	721 static void
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	722 cycle_dealloc(cycleobject *lz)
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	723 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	724 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	725 Py_XDECREF(lz->saved);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	726 Py_XDECREF(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	727 Py_TYPE(lz)->tp_free(lz);
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	728 }
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	729
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	730 static int
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	731 cycle_traverse(cycleobject lz, visitproc visit, void arg)
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	732 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	733 Py_VISIT(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	734 Py_VISIT(lz->saved);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	735 return 0;
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	736 }
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	737
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	738 static PyObject *
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	739 cycle_next(cycleobject *lz)
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	740 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	741 PyObject *item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	742 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	743 PyObject *tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	744
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	745 while (1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	746 item = PyIter_Next(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	747 if (item != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	748 if (!lz->firstpass && PyList_Append(lz->saved, item)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	749 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	750 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	751 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	752 return item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	753 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	754 if (PyErr_Occurred()) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	755 if (PyErr_ExceptionMatches(PyExc_StopIteration))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	756 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	757 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	758 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	759 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	760 if (PyList_Size(lz->saved) == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	761 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	762 it = PyObject_GetIter(lz->saved);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	763 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	764 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	765 tmp = lz->it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	766 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	767 lz->firstpass = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	768 Py_DECREF(tmp);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	769 }
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	770 }
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	771
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	772 PyDoc_STRVAR(cycle_doc,
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	773 "cycle(iterable) --> cycle object\n\
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	774 \n\
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	775 Return elements from the iterable until it is exhausted.\n\
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	776 Then repeat the sequence indefinitely.");
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	777
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	778 static PyTypeObject cycle_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	779 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	780 "itertools.cycle", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	781 sizeof(cycleobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	782 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	783 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	784 (destructor)cycle_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	785 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	786 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	787 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	788 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	789 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	790 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	791 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	792 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	793 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	794 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	795 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	796 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	797 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	798 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	799 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	800 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	801 cycle_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	802 (traverseproc)cycle_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	803 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	804 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	805 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	806 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	807 (iternextfunc)cycle_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	808 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	809 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	810 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	811 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	812 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	813 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	814 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	815 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	816 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	817 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	818 cycle_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	819 PyObject_GC_Del, /* tp_free */
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	820 };
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	821
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	822
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	823 /* dropwhile object **********************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	824
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	825 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	826 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	827 PyObject *func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	828 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	829 long start;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	830 } dropwhileobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	831
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	832 static PyTypeObject dropwhile_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	833
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	834 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	835 dropwhile_new(PyTypeObject type, PyObject args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	836 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	837 PyObject func, seq;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	838 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	839 dropwhileobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	840
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	841 if (type == &dropwhile_type && !_PyArg_NoKeywords("dropwhile()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	842 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	843
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	844 if (!PyArg_UnpackTuple(args, "dropwhile", 2, 2, &func, &seq))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	845 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	846
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	847 /* Get iterator. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	848 it = PyObject_GetIter(seq);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	849 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	850 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	851
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	852 /* create dropwhileobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	853 lz = (dropwhileobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	854 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	855 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	856 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	857 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	858 Py_INCREF(func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	859 lz->func = func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	860 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	861 lz->start = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	862
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	863 return (PyObject *)lz;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	864 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	865
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	866 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	867 dropwhile_dealloc(dropwhileobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	868 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	869 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	870 Py_XDECREF(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	871 Py_XDECREF(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	872 Py_TYPE(lz)->tp_free(lz);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	873 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	874
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	875 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	876 dropwhile_traverse(dropwhileobject lz, visitproc visit, void arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	877 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	878 Py_VISIT(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	879 Py_VISIT(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	880 return 0;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	881 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	882
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	883 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	884 dropwhile_next(dropwhileobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	885 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	886 PyObject item, good;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	887 PyObject *it = lz->it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	888 long ok;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	889 PyObject (iternext)(PyObject *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	890
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	891 iternext = *Py_TYPE(it)->tp_iternext;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	892 for (;;) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	893 item = iternext(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	894 if (item == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	895 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	896 if (lz->start == 1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	897 return item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	898
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	899 good = PyObject_CallFunctionObjArgs(lz->func, item, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	900 if (good == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	901 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	902 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	903 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	904 ok = PyObject_IsTrue(good);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	905 Py_DECREF(good);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	906 if (!ok) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	907 lz->start = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	908 return item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	909 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	910 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	911 }
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	912 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	913
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	914 PyDoc_STRVAR(dropwhile_doc,
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	915 "dropwhile(predicate, iterable) --> dropwhile object\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	916 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	917 Drop items from the iterable while predicate(item) is true.\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	918 Afterwards, return every element until the iterable is exhausted.");
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	919
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	920 static PyTypeObject dropwhile_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	921 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	922 "itertools.dropwhile", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	923 sizeof(dropwhileobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	924 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	925 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	926 (destructor)dropwhile_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	927 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	928 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	929 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	930 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	931 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	932 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	933 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	934 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	935 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	936 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	937 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	938 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	939 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	940 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	941 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	942 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	943 dropwhile_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	944 (traverseproc)dropwhile_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	945 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	946 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	947 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	948 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	949 (iternextfunc)dropwhile_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	950 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	951 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	952 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	953 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	954 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	955 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	956 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	957 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	958 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	959 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	960 dropwhile_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	961 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	962 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	963
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	964
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	965 /* takewhile object **********************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	966
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	967 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	968 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	969 PyObject *func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	970 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	971 long stop;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	972 } takewhileobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	973
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	974 static PyTypeObject takewhile_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	975
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	976 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	977 takewhile_new(PyTypeObject type, PyObject args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	978 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	979 PyObject func, seq;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	980 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	981 takewhileobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	982
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	983 if (type == &takewhile_type && !_PyArg_NoKeywords("takewhile()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	984 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	985
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	986 if (!PyArg_UnpackTuple(args, "takewhile", 2, 2, &func, &seq))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	987 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	988
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	989 /* Get iterator. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	990 it = PyObject_GetIter(seq);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	991 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	992 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	993
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	994 /* create takewhileobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	995 lz = (takewhileobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	996 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	997 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	998 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	999 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1000 Py_INCREF(func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1001 lz->func = func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1002 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1003 lz->stop = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1004
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1005 return (PyObject *)lz;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1006 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1007
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1008 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1009 takewhile_dealloc(takewhileobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1010 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1011 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1012 Py_XDECREF(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1013 Py_XDECREF(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1014 Py_TYPE(lz)->tp_free(lz);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1015 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1016
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1017 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1018 takewhile_traverse(takewhileobject lz, visitproc visit, void arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1019 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1020 Py_VISIT(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1021 Py_VISIT(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1022 return 0;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1023 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1024
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1025 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1026 takewhile_next(takewhileobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1027 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1028 PyObject item, good;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1029 PyObject *it = lz->it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1030 long ok;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1031
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1032 if (lz->stop == 1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1033 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1034
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1035 item = (*Py_TYPE(it)->tp_iternext)(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1036 if (item == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1037 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1038
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1039 good = PyObject_CallFunctionObjArgs(lz->func, item, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1040 if (good == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1041 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1042 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1043 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1044 ok = PyObject_IsTrue(good);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1045 Py_DECREF(good);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1046 if (ok)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1047 return item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1048 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1049 lz->stop = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1050 return NULL;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1051 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1052
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1053 PyDoc_STRVAR(takewhile_doc,
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1054 "takewhile(predicate, iterable) --> takewhile object\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1055 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1056 Return successive entries from an iterable as long as the \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1057 predicate evaluates to true for each entry.");
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1058
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1059 static PyTypeObject takewhile_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1060 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1061 "itertools.takewhile", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1062 sizeof(takewhileobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1063 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1064 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1065 (destructor)takewhile_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1066 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1067 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1068 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1069 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1070 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1071 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1072 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1073 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1074 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1075 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1076 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1077 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1078 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1079 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1080 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1081 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1082 takewhile_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1083 (traverseproc)takewhile_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1084 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1085 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1086 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1087 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1088 (iternextfunc)takewhile_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1089 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1090 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1091 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1092 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1093 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1094 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1095 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1096 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1097 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1098 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1099 takewhile_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1100 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1101 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1102
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1103
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1104 /* islice object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1105
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1106 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1107 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1108 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1109 Py_ssize_t next;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1110 Py_ssize_t stop;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1111 Py_ssize_t step;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1112 Py_ssize_t cnt;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1113 } isliceobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1114
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1115 static PyTypeObject islice_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1116
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1117 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1118 islice_new(PyTypeObject type, PyObject args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1119 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1120 PyObject *seq;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1121 Py_ssize_t start=0, stop=-1, step=1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1122 PyObject it, a1=NULL, a2=NULL, a3=NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1123 Py_ssize_t numargs;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1124 isliceobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1125
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1126 if (type == &islice_type && !_PyArg_NoKeywords("islice()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1127 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1128
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1129 if (!PyArg_UnpackTuple(args, "islice", 2, 4, &seq, &a1, &a2, &a3))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1130 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1131
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1132 numargs = PyTuple_Size(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1133 if (numargs == 2) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1134 if (a1 != Py_None) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1135 stop = PyLong_AsSsize_t(a1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1136 if (stop == -1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1137 if (PyErr_Occurred())
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1138 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1139 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1140 "Stop argument for islice() must be None or an integer: 0 <= x <= sys.maxsize.");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1141 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1142 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1143 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1144 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1145 if (a1 != Py_None)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1146 start = PyLong_AsSsize_t(a1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1147 if (start == -1 && PyErr_Occurred())
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1148 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1149 if (a2 != Py_None) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1150 stop = PyLong_AsSsize_t(a2);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1151 if (stop == -1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1152 if (PyErr_Occurred())
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1153 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1154 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1155 "Stop argument for islice() must be None or an integer: 0 <= x <= sys.maxsize.");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1156 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1157 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1158 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1159 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1160 if (start<0 \|\| stop<-1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1161 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1162 "Indices for islice() must be None or an integer: 0 <= x <= sys.maxsize.");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1163 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1164 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1165
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1166 if (a3 != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1167 if (a3 != Py_None)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1168 step = PyLong_AsSsize_t(a3);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1169 if (step == -1 && PyErr_Occurred())
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1170 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1171 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1172 if (step<1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1173 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1174 "Step for islice() must be a positive integer or None.");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1175 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1176 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1177
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1178 /* Get iterator. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1179 it = PyObject_GetIter(seq);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1180 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1181 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1182
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1183 /* create isliceobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1184 lz = (isliceobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1185 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1186 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1187 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1188 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1189 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1190 lz->next = start;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1191 lz->stop = stop;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1192 lz->step = step;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1193 lz->cnt = 0L;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1194
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1195 return (PyObject *)lz;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1196 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1197
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1198 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1199 islice_dealloc(isliceobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1200 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1201 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1202 Py_XDECREF(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1203 Py_TYPE(lz)->tp_free(lz);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1204 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1205
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1206 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1207 islice_traverse(isliceobject lz, visitproc visit, void arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1208 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1209 Py_VISIT(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1210 return 0;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1211 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1212
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1213 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1214 islice_next(isliceobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1215 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1216 PyObject *item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1217 PyObject *it = lz->it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1218 Py_ssize_t oldnext;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1219 PyObject (iternext)(PyObject *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1220
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1221 iternext = *Py_TYPE(it)->tp_iternext;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1222 while (lz->cnt < lz->next) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1223 item = iternext(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1224 if (item == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1225 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1226 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1227 lz->cnt++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1228 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1229 if (lz->stop != -1 && lz->cnt >= lz->stop)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1230 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1231 item = iternext(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1232 if (item == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1233 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1234 lz->cnt++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1235 oldnext = lz->next;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1236 lz->next += lz->step;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1237 if (lz->next < oldnext) /* Check for overflow */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1238 lz->next = lz->stop;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1239 return item;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1240 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1241
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1242 PyDoc_STRVAR(islice_doc,
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1243 "islice(iterable, [start,] stop [, step]) --> islice object\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1244 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1245 Return an iterator whose next() method returns selected values from an\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1246 iterable. If start is specified, will skip all preceding elements;\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1247 otherwise, start defaults to zero. Step defaults to one. If\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1248 specified as another value, step determines how many values are \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1249 skipped between successive calls. Works like a slice() on a list\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1250 but returns an iterator.");
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1251
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1252 static PyTypeObject islice_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1253 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1254 "itertools.islice", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1255 sizeof(isliceobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1256 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1257 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1258 (destructor)islice_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1259 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1260 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1261 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1262 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1263 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1264 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1265 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1266 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1267 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1268 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1269 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1270 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1271 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1272 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1273 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1274 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1275 islice_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1276 (traverseproc)islice_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1277 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1278 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1279 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1280 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1281 (iternextfunc)islice_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1282 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1283 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1284 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1285 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1286 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1287 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1288 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1289 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1290 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1291 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1292 islice_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1293 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1294 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1295
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1296
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1297 /* starmap object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1298
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1299 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1300 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1301 PyObject *func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1302 PyObject *it;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1303 } starmapobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1304
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1305 static PyTypeObject starmap_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1306
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1307 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1308 starmap_new(PyTypeObject type, PyObject args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1309 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1310 PyObject func, seq;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1311 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1312 starmapobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1313
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1314 if (type == &starmap_type && !_PyArg_NoKeywords("starmap()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1315 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1316
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1317 if (!PyArg_UnpackTuple(args, "starmap", 2, 2, &func, &seq))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1318 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1319
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1320 /* Get iterator. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1321 it = PyObject_GetIter(seq);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1322 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1323 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1324
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1325 /* create starmapobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1326 lz = (starmapobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1327 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1328 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1329 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1330 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1331 Py_INCREF(func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1332 lz->func = func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1333 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1334
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1335 return (PyObject *)lz;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1336 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1337
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1338 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1339 starmap_dealloc(starmapobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1340 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1341 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1342 Py_XDECREF(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1343 Py_XDECREF(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1344 Py_TYPE(lz)->tp_free(lz);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1345 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1346
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1347 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1348 starmap_traverse(starmapobject lz, visitproc visit, void arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1349 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1350 Py_VISIT(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1351 Py_VISIT(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1352 return 0;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1353 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1354
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1355 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1356 starmap_next(starmapobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1357 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1358 PyObject *args;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1359 PyObject *result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1360 PyObject *it = lz->it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1361
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1362 args = (*Py_TYPE(it)->tp_iternext)(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1363 if (args == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1364 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1365 if (!PyTuple_CheckExact(args)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1366 PyObject *newargs = PySequence_Tuple(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1367 Py_DECREF(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1368 if (newargs == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1369 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1370 args = newargs;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1371 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1372 result = PyObject_Call(lz->func, args, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1373 Py_DECREF(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1374 return result;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1375 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1376
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1377 PyDoc_STRVAR(starmap_doc,
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1378 "starmap(function, sequence) --> starmap object\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1379 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1380 Return an iterator whose values are returned from the function evaluated\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1381 with a argument tuple taken from the given sequence.");
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1382
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1383 static PyTypeObject starmap_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1384 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1385 "itertools.starmap", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1386 sizeof(starmapobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1387 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1388 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1389 (destructor)starmap_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1390 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1391 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1392 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1393 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1394 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1395 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1396 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1397 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1398 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1399 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1400 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1401 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1402 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1403 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1404 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1405 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1406 starmap_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1407 (traverseproc)starmap_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1408 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1409 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1410 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1411 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1412 (iternextfunc)starmap_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1413 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1414 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1415 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1416 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1417 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1418 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1419 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1420 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1421 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1422 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1423 starmap_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1424 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1425 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1426
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1427
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1428 /* chain object ************************************************************/
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1429
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1430 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1431 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1432 PyObject source; / Iterator over input iterables */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1433 PyObject active; / Currently running input iterator */
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1434 } chainobject;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1435
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1436 static PyTypeObject chain_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1437
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1438 static PyObject *
45569 937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1439 chain_new_internal(PyTypeObject type, PyObject source)
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1440 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1441 chainobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1442
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1443 lz = (chainobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1444 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1445 Py_DECREF(source);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1446 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1447 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1448
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1449 lz->source = source;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1450 lz->active = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1451 return (PyObject *)lz;
45569 937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1452 }
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1453
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1454 static PyObject *
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1455 chain_new(PyTypeObject type, PyObject args, PyObject *kwds)
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1456 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1457 PyObject *source;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1458
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1459 if (type == &chain_type && !_PyArg_NoKeywords("chain()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1460 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1461
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1462 source = PyObject_GetIter(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1463 if (source == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1464 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1465
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1466 return chain_new_internal(type, source);
45569 937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1467 }
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1468
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1469 static PyObject *
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1470 chain_new_from_iterable(PyTypeObject type, PyObject arg)
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1471 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1472 PyObject *source;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1473
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1474 source = PyObject_GetIter(arg);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1475 if (source == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1476 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1477
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1478 return chain_new_internal(type, source);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1479 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1480
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1481 static void
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1482 chain_dealloc(chainobject *lz)
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1483 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1484 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1485 Py_XDECREF(lz->active);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1486 Py_XDECREF(lz->source);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1487 Py_TYPE(lz)->tp_free(lz);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1488 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1489
27747 941de791b17a SF bug #681003: itertools issues Raymond Hettinger <python@rcn.com> parents: 27570 diff changeset	1490 static int
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1491 chain_traverse(chainobject lz, visitproc visit, void arg)
27747 941de791b17a SF bug #681003: itertools issues Raymond Hettinger <python@rcn.com> parents: 27570 diff changeset	1492 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1493 Py_VISIT(lz->source);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1494 Py_VISIT(lz->active);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1495 return 0;
27747 941de791b17a SF bug #681003: itertools issues Raymond Hettinger <python@rcn.com> parents: 27570 diff changeset	1496 }
941de791b17a SF bug #681003: itertools issues Raymond Hettinger <python@rcn.com> parents: 27570 diff changeset	1497
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1498 static PyObject *
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1499 chain_next(chainobject *lz)
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1500 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1501 PyObject *item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1502
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1503 if (lz->source == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1504 return NULL; /* already stopped */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1505
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1506 if (lz->active == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1507 PyObject *iterable = PyIter_Next(lz->source);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1508 if (iterable == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1509 Py_CLEAR(lz->source);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1510 return NULL; /* no more input sources */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1511 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1512 lz->active = PyObject_GetIter(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1513 Py_DECREF(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1514 if (lz->active == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1515 Py_CLEAR(lz->source);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1516 return NULL; /* input not iterable */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1517 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1518 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1519 item = PyIter_Next(lz->active);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1520 if (item != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1521 return item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1522 if (PyErr_Occurred()) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1523 if (PyErr_ExceptionMatches(PyExc_StopIteration))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1524 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1525 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1526 return NULL; /* input raised an exception */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1527 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1528 Py_CLEAR(lz->active);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1529 return chain_next(lz); /* recurse and use next active */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1530 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1531
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1532 PyDoc_STRVAR(chain_doc,
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1533 "chain(*iterables) --> chain object\n\
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1534 \n\
41501 0c5019afc55b PEP 3114: rename .next() to .__next__() and add next() builtin. Georg Brandl <georg@python.org> parents: 40893 diff changeset	1535 Return a chain object whose .__next__() method returns elements from the\n\
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1536 first iterable until it is exhausted, then elements from the next\n\
61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	1537 iterable, until all of the iterables are exhausted.");
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1538
45569 937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1539 PyDoc_STRVAR(chain_from_iterable_doc,
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1540 "chain.from_iterable(iterable) --> chain object\n\
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1541 \n\
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1542 Alternate chain() contructor taking a single iterable argument\n\
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1543 that evaluates lazily.");
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1544
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1545 static PyMethodDef chain_methods[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1546 {"from_iterable", (PyCFunction) chain_new_from_iterable, METH_O \| METH_CLASS,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1547 chain_from_iterable_doc},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1548 {NULL, NULL} /* sentinel */
45569 937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1549 };
937a3c5af691 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61097,61103-61104,61110-61112,61114-61115,61117-61125 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45548 diff changeset	1550
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	1551 static PyTypeObject chain_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1552 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1553 "itertools.chain", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1554 sizeof(chainobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1555 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1556 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1557 (destructor)chain_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1558 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1559 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1560 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1561 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1562 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1563 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1564 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1565 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1566 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1567 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1568 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1569 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1570 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1571 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1572 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1573 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1574 chain_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1575 (traverseproc)chain_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1576 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1577 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1578 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1579 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1580 (iternextfunc)chain_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1581 chain_methods, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1582 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1583 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1584 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1585 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1586 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1587 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1588 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1589 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1590 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1591 chain_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1592 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1593 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1594
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	1595
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1596 /* product object ************************************************************/
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1597
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1598 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1599 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1600 PyObject pools; / tuple of pool tuples */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1601 Py_ssize_t indices; / one index per pool */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1602 PyObject result; / most recently returned result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1603 int stopped; /* set to 1 when the product iterator is exhausted */
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1604 } productobject;
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1605
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1606 static PyTypeObject product_type;
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1607
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1608 static PyObject *
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1609 product_new(PyTypeObject type, PyObject args, PyObject *kwds)
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1610 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1611 productobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1612 Py_ssize_t nargs, npools, repeat=1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1613 PyObject *pools = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1614 Py_ssize_t *indices = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1615 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1616
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1617 if (kwds != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1618 char *kwlist[] = {"repeat", 0};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1619 PyObject *tmpargs = PyTuple_New(0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1620 if (tmpargs == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1621 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1622 if (!PyArg_ParseTupleAndKeywords(tmpargs, kwds, "\|n:product", kwlist, &repeat)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1623 Py_DECREF(tmpargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1624 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1625 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1626 Py_DECREF(tmpargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1627 if (repeat < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1628 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1629 "repeat argument cannot be negative");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1630 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1631 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1632 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1633
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1634 assert(PyTuple_Check(args));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1635 nargs = (repeat == 0) ? 0 : PyTuple_GET_SIZE(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1636 npools = nargs * repeat;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1637
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1638 indices = PyMem_Malloc(npools * sizeof(Py_ssize_t));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1639 if (indices == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1640 PyErr_NoMemory();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1641 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1642 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1643
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1644 pools = PyTuple_New(npools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1645 if (pools == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1646 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1647
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1648 for (i=0; i < nargs ; ++i) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1649 PyObject *item = PyTuple_GET_ITEM(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1650 PyObject *pool = PySequence_Tuple(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1651 if (pool == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1652 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1653 PyTuple_SET_ITEM(pools, i, pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1654 indices[i] = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1655 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1656 for ( ; i < npools; ++i) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1657 PyObject *pool = PyTuple_GET_ITEM(pools, i - nargs);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1658 Py_INCREF(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1659 PyTuple_SET_ITEM(pools, i, pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1660 indices[i] = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1661 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1662
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1663 /* create productobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1664 lz = (productobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1665 if (lz == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1666 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1667
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1668 lz->pools = pools;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1669 lz->indices = indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1670 lz->result = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1671 lz->stopped = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1672
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1673 return (PyObject *)lz;
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1674
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1675 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1676 if (indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1677 PyMem_Free(indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1678 Py_XDECREF(pools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1679 return NULL;
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1680 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1681
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1682 static void
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1683 product_dealloc(productobject *lz)
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1684 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1685 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1686 Py_XDECREF(lz->pools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1687 Py_XDECREF(lz->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1688 if (lz->indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1689 PyMem_Free(lz->indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1690 Py_TYPE(lz)->tp_free(lz);
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1691 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1692
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1693 static int
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1694 product_traverse(productobject lz, visitproc visit, void arg)
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1695 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1696 Py_VISIT(lz->pools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1697 Py_VISIT(lz->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1698 return 0;
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1699 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1700
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1701 static PyObject *
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1702 product_next(productobject *lz)
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1703 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1704 PyObject *pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1705 PyObject *elem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1706 PyObject *oldelem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1707 PyObject *pools = lz->pools;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1708 PyObject *result = lz->result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1709 Py_ssize_t npools = PyTuple_GET_SIZE(pools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1710 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1711
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1712 if (lz->stopped)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1713 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1714
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1715 if (result == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1716 /* On the first pass, return an initial tuple filled with the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1717 first element from each pool. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1718 result = PyTuple_New(npools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1719 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1720 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1721 lz->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1722 for (i=0; i < npools; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1723 pool = PyTuple_GET_ITEM(pools, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1724 if (PyTuple_GET_SIZE(pool) == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1725 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1726 elem = PyTuple_GET_ITEM(pool, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1727 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1728 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1729 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1730 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1731 Py_ssize_t *indices = lz->indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1732
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1733 /* Copy the previous result tuple or re-use it if available */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1734 if (Py_REFCNT(result) > 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1735 PyObject *old_result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1736 result = PyTuple_New(npools);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1737 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1738 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1739 lz->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1740 for (i=0; i < npools; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1741 elem = PyTuple_GET_ITEM(old_result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1742 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1743 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1744 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1745 Py_DECREF(old_result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1746 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1747 /* Now, we've got the only copy so we can update it in-place */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1748 assert (npools==0 \|\| Py_REFCNT(result) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1749
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1750 /* Update the pool indices right-to-left. Only advance to the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1751 next pool when the previous one rolls-over */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1752 for (i=npools-1 ; i >= 0 ; i--) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1753 pool = PyTuple_GET_ITEM(pools, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1754 indices[i]++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1755 if (indices[i] == PyTuple_GET_SIZE(pool)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1756 /* Roll-over and advance to next pool */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1757 indices[i] = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1758 elem = PyTuple_GET_ITEM(pool, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1759 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1760 oldelem = PyTuple_GET_ITEM(result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1761 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1762 Py_DECREF(oldelem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1763 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1764 /* No rollover. Just increment and stop here. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1765 elem = PyTuple_GET_ITEM(pool, indices[i]);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1766 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1767 oldelem = PyTuple_GET_ITEM(result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1768 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1769 Py_DECREF(oldelem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1770 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1771 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1772 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1773
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1774 /* If i is negative, then the indices have all rolled-over
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1775 and we're done. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1776 if (i < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1777 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1778 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1779
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1780 Py_INCREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1781 return result;
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1782
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1783 empty:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1784 lz->stopped = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1785 return NULL;
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1786 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1787
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1788 PyDoc_STRVAR(product_doc,
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1789 "product(*iterables) --> product object\n\
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1790 \n\
45446 5e0772ed20d1 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900,60902-60906,60908,60911-60917,60919-60920,60922,60926,60929-60931,60933-60935,60937,60939-60941,60943-60954,60959-60961,60963-60969,60971-60976 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45435 diff changeset	1791 Cartesian product of input iterables. Equivalent to nested for-loops.\n\n\
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1792 For example, product(A, B) returns the same as: ((x,y) for x in A for y in B).\n\
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1793 The leftmost iterators are in the outermost for-loop, so the output tuples\n\
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1794 cycle in a manner similar to an odometer (with the rightmost element changing\n\
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1795 on every iteration).\n\n\
51503 e759da93df64 Merged revisions 69466,69480 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 51270 diff changeset	1796 To compute the product of an iterable with itself, specify the number\n\
e759da93df64 Merged revisions 69466,69480 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 51270 diff changeset	1797 of repetitions with the optional repeat keyword argument. For example,\n\
e759da93df64 Merged revisions 69466,69480 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 51270 diff changeset	1798 product(A, repeat=4) means the same as product(A, A, A, A).\n\n\
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1799 product('ab', range(3)) --> ('a',0) ('a',1) ('a',2) ('b',0) ('b',1) ('b',2)\n\
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1800 product((0,1), (0,1), (0,1)) --> (0,0,0) (0,0,1) (0,1,0) (0,1,1) (1,0,0) ...");
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1801
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1802 static PyTypeObject product_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1803 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1804 "itertools.product", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1805 sizeof(productobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1806 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1807 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1808 (destructor)product_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1809 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1810 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1811 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1812 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1813 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1814 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1815 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1816 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1817 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1818 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1819 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1820 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1821 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1822 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1823 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1824 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1825 product_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1826 (traverseproc)product_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1827 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1828 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1829 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1830 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1831 (iternextfunc)product_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1832 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1833 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1834 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1835 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1836 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1837 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1838 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1839 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1840 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1841 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1842 product_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1843 PyObject_GC_Del, /* tp_free */
45435 42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1844 };
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1845
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44881 diff changeset	1846
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1847 /* combinations object ************************************************************/
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1848
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1849 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1850 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1851 PyObject pool; / input converted to a tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1852 Py_ssize_t indices; / one index per result element */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1853 PyObject result; / most recently returned result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1854 Py_ssize_t r; /* size of result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1855 int stopped; /* set to 1 when the combinations iterator is exhausted */
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1856 } combinationsobject;
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1857
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1858 static PyTypeObject combinations_type;
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1859
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1860 static PyObject *
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1861 combinations_new(PyTypeObject type, PyObject args, PyObject *kwds)
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1862 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1863 combinationsobject *co;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1864 Py_ssize_t n;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1865 Py_ssize_t r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1866 PyObject *pool = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1867 PyObject *iterable = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1868 Py_ssize_t *indices = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1869 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1870 static char *kwargs[] = {"iterable", "r", NULL};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1871
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1872 if (!PyArg_ParseTupleAndKeywords(args, kwds, "On:combinations", kwargs,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1873 &iterable, &r))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1874 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1875
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1876 pool = PySequence_Tuple(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1877 if (pool == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1878 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1879 n = PyTuple_GET_SIZE(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1880 if (r < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1881 PyErr_SetString(PyExc_ValueError, "r must be non-negative");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1882 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1883 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1884
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1885 indices = PyMem_Malloc(r * sizeof(Py_ssize_t));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1886 if (indices == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1887 PyErr_NoMemory();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1888 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1889 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1890
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1891 for (i=0 ; i<r ; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1892 indices[i] = i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1893
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1894 /* create combinationsobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1895 co = (combinationsobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1896 if (co == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1897 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1898
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1899 co->pool = pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1900 co->indices = indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1901 co->result = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1902 co->r = r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1903 co->stopped = r > n ? 1 : 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1904
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1905 return (PyObject *)co;
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1906
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1907 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1908 if (indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1909 PyMem_Free(indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1910 Py_XDECREF(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1911 return NULL;
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1912 }
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1913
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1914 static void
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1915 combinations_dealloc(combinationsobject *co)
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1916 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1917 PyObject_GC_UnTrack(co);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1918 Py_XDECREF(co->pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1919 Py_XDECREF(co->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1920 if (co->indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1921 PyMem_Free(co->indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1922 Py_TYPE(co)->tp_free(co);
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1923 }
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1924
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1925 static int
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1926 combinations_traverse(combinationsobject co, visitproc visit, void arg)
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1927 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1928 Py_VISIT(co->pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1929 Py_VISIT(co->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1930 return 0;
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1931 }
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1932
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1933 static PyObject *
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1934 combinations_next(combinationsobject *co)
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	1935 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1936 PyObject *elem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1937 PyObject *oldelem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1938 PyObject *pool = co->pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1939 Py_ssize_t *indices = co->indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1940 PyObject *result = co->result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1941 Py_ssize_t n = PyTuple_GET_SIZE(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1942 Py_ssize_t r = co->r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1943 Py_ssize_t i, j, index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1944
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1945 if (co->stopped)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1946 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1947
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1948 if (result == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1949 /* On the first pass, initialize result tuple using the indices */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1950 result = PyTuple_New(r);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1951 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1952 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1953 co->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1954 for (i=0; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1955 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1956 elem = PyTuple_GET_ITEM(pool, index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1957 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1958 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1959 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1960 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1961 /* Copy the previous result tuple or re-use it if available */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1962 if (Py_REFCNT(result) > 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1963 PyObject *old_result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1964 result = PyTuple_New(r);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1965 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1966 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1967 co->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1968 for (i=0; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1969 elem = PyTuple_GET_ITEM(old_result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1970 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1971 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1972 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1973 Py_DECREF(old_result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1974 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1975 /* Now, we've got the only copy so we can update it in-place
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1976 * CPython's empty tuple is a singleton and cached in
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1977 * PyTuple's freelist.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1978 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1979 assert(r == 0 \|\| Py_REFCNT(result) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1980
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1981 /* Scan indices right-to-left until finding one that is not
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1982 at its maximum (i + n - r). */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1983 for (i=r-1 ; i >= 0 && indices[i] == i+n-r ; i--)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1984 ;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1985
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1986 /* If i is negative, then the indices are all at
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1987 their maximum value and we're done. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1988 if (i < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1989 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1990
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1991 /* Increment the current index which we know is not at its
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1992 maximum. Then move back to the right setting each index
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1993 to its lowest possible value (one higher than the index
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1994 to its left -- this maintains the sort order invariant). */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1995 indices[i]++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1996 for (j=i+1 ; j<r ; j++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1997 indices[j] = indices[j-1] + 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1998
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	1999 /* Update the result tuple for the new indices
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2000 starting with i, the leftmost index that changed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2001 for ( ; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2002 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2003 elem = PyTuple_GET_ITEM(pool, index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2004 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2005 oldelem = PyTuple_GET_ITEM(result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2006 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2007 Py_DECREF(oldelem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2008 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2009 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2010
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2011 Py_INCREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2012 return result;
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2013
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2014 empty:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2015 co->stopped = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2016 return NULL;
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2017 }
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2018
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2019 PyDoc_STRVAR(combinations_doc,
57344 a790f84fbafa Fix docstrings for itertools combinatoric functions. Raymond Hettinger <python@rcn.com> parents: 57042 diff changeset	2020 "combinations(iterable, r) --> combinations object\n\
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2021 \n\
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2022 Return successive r-length combinations of elements in the iterable.\n\n\
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2023 combinations(range(4), 3) --> (0,1,2), (0,1,3), (0,2,3), (1,2,3)");
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2024
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2025 static PyTypeObject combinations_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2026 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2027 "itertools.combinations", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2028 sizeof(combinationsobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2029 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2030 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2031 (destructor)combinations_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2032 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2033 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2034 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2035 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2036 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2037 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2038 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2039 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2040 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2041 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2042 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2043 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2044 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2045 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2046 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2047 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2048 combinations_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2049 (traverseproc)combinations_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2050 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2051 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2052 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2053 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2054 (iternextfunc)combinations_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2055 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2056 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2057 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2058 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2059 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2060 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2061 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2062 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2063 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2064 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2065 combinations_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2066 PyObject_GC_Del, /* tp_free */
45548 8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2067 };
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2068
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45534 diff changeset	2069
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2070 /* combinations with replacement object *******************************************/
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2071
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2072 /* Equivalent to:
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2073
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2074 def combinations_with_replacement(iterable, r):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2075 "combinations_with_replacement('ABC', 2) --> AA AB AC BB BC CC"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2076 # number items returned: (n+r-1)! / r! / (n-1)!
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2077 pool = tuple(iterable)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2078 n = len(pool)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2079 indices = [0] * r
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2080 yield tuple(pool[i] for i in indices)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2081 while 1:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2082 for i in reversed(range(r)):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2083 if indices[i] != n - 1:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2084 break
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2085 else:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2086 return
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2087 indices[i:] = [indices[i] + 1] * (r - i)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2088 yield tuple(pool[i] for i in indices)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2089
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2090 def combinations_with_replacement2(iterable, r):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2091 'Alternate version that filters from product()'
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2092 pool = tuple(iterable)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2093 n = len(pool)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2094 for indices in product(range(n), repeat=r):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2095 if sorted(indices) == list(indices):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2096 yield tuple(pool[i] for i in indices)
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2097 */
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2098 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2099 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2100 PyObject pool; / input converted to a tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2101 Py_ssize_t indices; / one index per result element */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2102 PyObject result; / most recently returned result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2103 Py_ssize_t r; /* size of result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2104 int stopped; /* set to 1 when the cwr iterator is exhausted */
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2105 } cwrobject;
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2106
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2107 static PyTypeObject cwr_type;
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2108
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2109 static PyObject *
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2110 cwr_new(PyTypeObject type, PyObject args, PyObject *kwds)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2111 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2112 cwrobject *co;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2113 Py_ssize_t n;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2114 Py_ssize_t r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2115 PyObject *pool = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2116 PyObject *iterable = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2117 Py_ssize_t *indices = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2118 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2119 static char *kwargs[] = {"iterable", "r", NULL};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2120
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2121 if (!PyArg_ParseTupleAndKeywords(args, kwds, "On:combinations_with_replacement", kwargs,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2122 &iterable, &r))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2123 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2124
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2125 pool = PySequence_Tuple(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2126 if (pool == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2127 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2128 n = PyTuple_GET_SIZE(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2129 if (r < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2130 PyErr_SetString(PyExc_ValueError, "r must be non-negative");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2131 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2132 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2133
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2134 indices = PyMem_Malloc(r * sizeof(Py_ssize_t));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2135 if (indices == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2136 PyErr_NoMemory();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2137 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2138 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2139
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2140 for (i=0 ; i<r ; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2141 indices[i] = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2142
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2143 /* create cwrobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2144 co = (cwrobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2145 if (co == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2146 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2147
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2148 co->pool = pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2149 co->indices = indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2150 co->result = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2151 co->r = r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2152 co->stopped = !n && r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2153
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2154 return (PyObject *)co;
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2155
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2156 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2157 if (indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2158 PyMem_Free(indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2159 Py_XDECREF(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2160 return NULL;
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2161 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2162
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2163 static void
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2164 cwr_dealloc(cwrobject *co)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2165 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2166 PyObject_GC_UnTrack(co);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2167 Py_XDECREF(co->pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2168 Py_XDECREF(co->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2169 if (co->indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2170 PyMem_Free(co->indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2171 Py_TYPE(co)->tp_free(co);
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2172 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2173
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2174 static int
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2175 cwr_traverse(cwrobject co, visitproc visit, void arg)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2176 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2177 Py_VISIT(co->pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2178 Py_VISIT(co->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2179 return 0;
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2180 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2181
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2182 static PyObject *
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2183 cwr_next(cwrobject *co)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2184 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2185 PyObject *elem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2186 PyObject *oldelem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2187 PyObject *pool = co->pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2188 Py_ssize_t *indices = co->indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2189 PyObject *result = co->result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2190 Py_ssize_t n = PyTuple_GET_SIZE(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2191 Py_ssize_t r = co->r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2192 Py_ssize_t i, j, index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2193
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2194 if (co->stopped)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2195 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2196
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2197 if (result == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2198 /* On the first pass, initialize result tuple using the indices */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2199 result = PyTuple_New(r);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2200 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2201 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2202 co->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2203 for (i=0; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2204 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2205 elem = PyTuple_GET_ITEM(pool, index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2206 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2207 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2208 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2209 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2210 /* Copy the previous result tuple or re-use it if available */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2211 if (Py_REFCNT(result) > 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2212 PyObject *old_result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2213 result = PyTuple_New(r);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2214 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2215 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2216 co->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2217 for (i=0; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2218 elem = PyTuple_GET_ITEM(old_result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2219 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2220 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2221 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2222 Py_DECREF(old_result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2223 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2224 /* Now, we've got the only copy so we can update it in-place CPython's
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2225 empty tuple is a singleton and cached in PyTuple's freelist. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2226 assert(r == 0 \|\| Py_REFCNT(result) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2227
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2228 /* Scan indices right-to-left until finding one that is not
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2229 * at its maximum (n-1). */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2230 for (i=r-1 ; i >= 0 && indices[i] == n-1; i--)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2231 ;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2232
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2233 /* If i is negative, then the indices are all at
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2234 their maximum value and we're done. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2235 if (i < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2236 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2237
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2238 /* Increment the current index which we know is not at its
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2239 maximum. Then set all to the right to the same value. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2240 indices[i]++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2241 for (j=i+1 ; j<r ; j++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2242 indices[j] = indices[j-1];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2243
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2244 /* Update the result tuple for the new indices
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2245 starting with i, the leftmost index that changed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2246 for ( ; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2247 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2248 elem = PyTuple_GET_ITEM(pool, index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2249 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2250 oldelem = PyTuple_GET_ITEM(result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2251 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2252 Py_DECREF(oldelem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2253 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2254 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2255
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2256 Py_INCREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2257 return result;
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2258
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2259 empty:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2260 co->stopped = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2261 return NULL;
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2262 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2263
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2264 PyDoc_STRVAR(cwr_doc,
57344 a790f84fbafa Fix docstrings for itertools combinatoric functions. Raymond Hettinger <python@rcn.com> parents: 57042 diff changeset	2265 "combinations_with_replacement(iterable, r) --> combinations_with_replacement object\n\
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2266 \n\
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2267 Return successive r-length combinations of elements in the iterable\n\
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2268 allowing individual elements to have successive repeats.\n\
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2269 combinations_with_replacement('ABC', 2) --> AA AB AC BB BC CC");
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2270
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2271 static PyTypeObject cwr_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2272 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2273 "itertools.combinations_with_replacement", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2274 sizeof(cwrobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2275 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2276 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2277 (destructor)cwr_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2278 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2279 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2280 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2281 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2282 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2283 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2284 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2285 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2286 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2287 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2288 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2289 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2290 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2291 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2292 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2293 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2294 cwr_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2295 (traverseproc)cwr_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2296 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2297 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2298 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2299 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2300 (iternextfunc)cwr_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2301 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2302 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2303 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2304 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2305 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2306 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2307 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2308 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2309 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2310 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2311 cwr_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2312 PyObject_GC_Del, /* tp_free */
51100 4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2313 };
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2314
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement(). Raymond Hettinger <python@rcn.com> parents: 51063 diff changeset	2315
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2316 /* permutations object ************************************************************
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2317
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2318 def permutations(iterable, r=None):
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2319 'permutations(range(3), 2) --> (0,1) (0,2) (1,0) (1,2) (2,0) (2,1)'
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2320 pool = tuple(iterable)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2321 n = len(pool)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2322 r = n if r is None else r
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2323 indices = range(n)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2324 cycles = range(n-r+1, n+1)[::-1]
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2325 yield tuple(pool[i] for i in indices[:r])
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2326 while n:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2327 for i in reversed(range(r)):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2328 cycles[i] -= 1
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2329 if cycles[i] == 0:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2330 indices[i:] = indices[i+1:] + indices[i:i+1]
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2331 cycles[i] = n - i
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2332 else:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2333 j = cycles[i]
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2334 indices[i], indices[-j] = indices[-j], indices[i]
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2335 yield tuple(pool[i] for i in indices[:r])
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2336 break
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2337 else:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2338 return
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2339 */
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2340
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2341 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2342 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2343 PyObject pool; / input converted to a tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2344 Py_ssize_t indices; / one index per element in the pool */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2345 Py_ssize_t cycles; / one rollover counter per element in the result */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2346 PyObject result; / most recently returned result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2347 Py_ssize_t r; /* size of result tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2348 int stopped; /* set to 1 when the permutations iterator is exhausted */
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2349 } permutationsobject;
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2350
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2351 static PyTypeObject permutations_type;
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2352
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2353 static PyObject *
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2354 permutations_new(PyTypeObject type, PyObject args, PyObject *kwds)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2355 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2356 permutationsobject *po;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2357 Py_ssize_t n;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2358 Py_ssize_t r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2359 PyObject *robj = Py_None;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2360 PyObject *pool = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2361 PyObject *iterable = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2362 Py_ssize_t *indices = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2363 Py_ssize_t *cycles = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2364 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2365 static char *kwargs[] = {"iterable", "r", NULL};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2366
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2367 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O\|O:permutations", kwargs,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2368 &iterable, &robj))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2369 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2370
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2371 pool = PySequence_Tuple(iterable);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2372 if (pool == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2373 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2374 n = PyTuple_GET_SIZE(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2375
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2376 r = n;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2377 if (robj != Py_None) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2378 if (!PyLong_Check(robj)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2379 PyErr_SetString(PyExc_TypeError, "Expected int as r");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2380 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2381 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2382 r = PyLong_AsSsize_t(robj);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2383 if (r == -1 && PyErr_Occurred())
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2384 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2385 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2386 if (r < 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2387 PyErr_SetString(PyExc_ValueError, "r must be non-negative");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2388 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2389 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2390
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2391 indices = PyMem_Malloc(n * sizeof(Py_ssize_t));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2392 cycles = PyMem_Malloc(r * sizeof(Py_ssize_t));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2393 if (indices == NULL \|\| cycles == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2394 PyErr_NoMemory();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2395 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2396 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2397
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2398 for (i=0 ; i<n ; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2399 indices[i] = i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2400 for (i=0 ; i<r ; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2401 cycles[i] = n - i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2402
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2403 /* create permutationsobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2404 po = (permutationsobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2405 if (po == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2406 goto error;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2407
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2408 po->pool = pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2409 po->indices = indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2410 po->cycles = cycles;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2411 po->result = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2412 po->r = r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2413 po->stopped = r > n ? 1 : 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2414
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2415 return (PyObject *)po;
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2416
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2417 error:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2418 if (indices != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2419 PyMem_Free(indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2420 if (cycles != NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2421 PyMem_Free(cycles);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2422 Py_XDECREF(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2423 return NULL;
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2424 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2425
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2426 static void
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2427 permutations_dealloc(permutationsobject *po)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2428 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2429 PyObject_GC_UnTrack(po);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2430 Py_XDECREF(po->pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2431 Py_XDECREF(po->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2432 PyMem_Free(po->indices);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2433 PyMem_Free(po->cycles);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2434 Py_TYPE(po)->tp_free(po);
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2435 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2436
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2437 static int
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2438 permutations_traverse(permutationsobject po, visitproc visit, void arg)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2439 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2440 Py_VISIT(po->pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2441 Py_VISIT(po->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2442 return 0;
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2443 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2444
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2445 static PyObject *
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2446 permutations_next(permutationsobject *po)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2447 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2448 PyObject *elem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2449 PyObject *oldelem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2450 PyObject *pool = po->pool;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2451 Py_ssize_t *indices = po->indices;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2452 Py_ssize_t *cycles = po->cycles;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2453 PyObject *result = po->result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2454 Py_ssize_t n = PyTuple_GET_SIZE(pool);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2455 Py_ssize_t r = po->r;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2456 Py_ssize_t i, j, k, index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2457
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2458 if (po->stopped)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2459 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2460
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2461 if (result == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2462 /* On the first pass, initialize result tuple using the indices */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2463 result = PyTuple_New(r);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2464 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2465 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2466 po->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2467 for (i=0; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2468 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2469 elem = PyTuple_GET_ITEM(pool, index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2470 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2471 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2472 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2473 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2474 if (n == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2475 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2476
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2477 /* Copy the previous result tuple or re-use it if available */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2478 if (Py_REFCNT(result) > 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2479 PyObject *old_result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2480 result = PyTuple_New(r);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2481 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2482 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2483 po->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2484 for (i=0; i<r ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2485 elem = PyTuple_GET_ITEM(old_result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2486 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2487 PyTuple_SET_ITEM(result, i, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2488 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2489 Py_DECREF(old_result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2490 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2491 /* Now, we've got the only copy so we can update it in-place */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2492 assert(r == 0 \|\| Py_REFCNT(result) == 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2493
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2494 /* Decrement rightmost cycle, moving leftward upon zero rollover */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2495 for (i=r-1 ; i>=0 ; i--) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2496 cycles[i] -= 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2497 if (cycles[i] == 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2498 /* rotatation: indices[i:] = indices[i+1:] + indices[i:i+1] */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2499 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2500 for (j=i ; j<n-1 ; j++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2501 indices[j] = indices[j+1];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2502 indices[n-1] = index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2503 cycles[i] = n - i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2504 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2505 j = cycles[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2506 index = indices[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2507 indices[i] = indices[n-j];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2508 indices[n-j] = index;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2509
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2510 for (k=i; k<r ; k++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2511 /* start with i, the leftmost element that changed */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2512 /* yield tuple(pool[k] for k in indices[:r]) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2513 index = indices[k];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2514 elem = PyTuple_GET_ITEM(pool, index);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2515 Py_INCREF(elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2516 oldelem = PyTuple_GET_ITEM(result, k);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2517 PyTuple_SET_ITEM(result, k, elem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2518 Py_DECREF(oldelem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2519 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2520 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2521 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2522 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2523 /* If i is negative, then the cycles have all
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2524 rolled-over and we're done. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2525 if (i < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2526 goto empty;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2527 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2528 Py_INCREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2529 return result;
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2530
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2531 empty:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2532 po->stopped = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2533 return NULL;
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2534 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2535
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2536 PyDoc_STRVAR(permutations_doc,
47555 7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 46238 diff changeset	2537 "permutations(iterable[, r]) --> permutations object\n\
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2538 \n\
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2539 Return successive r-length permutations of elements in the iterable.\n\n\
47555 7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 46238 diff changeset	2540 permutations(range(3), 2) --> (0,1), (0,2), (1,0), (1,2), (2,0), (2,1)");
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2541
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2542 static PyTypeObject permutations_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2543 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2544 "itertools.permutations", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2545 sizeof(permutationsobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2546 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2547 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2548 (destructor)permutations_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2549 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2550 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2551 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2552 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2553 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2554 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2555 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2556 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2557 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2558 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2559 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2560 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2561 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2562 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2563 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2564 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2565 permutations_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2566 (traverseproc)permutations_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2567 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2568 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2569 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2570 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2571 (iternextfunc)permutations_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2572 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2573 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2574 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2575 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2576 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2577 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2578 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2579 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2580 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2581 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2582 permutations_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2583 PyObject_GC_Del, /* tp_free */
45773 832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2584 };
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2585
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45738 diff changeset	2586
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2587 /* compress object ************************************************************/
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2588
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2589 /* Equivalent to:
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2590
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2591 def compress(data, selectors):
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2592 "compress('ABCDEF', [1,0,1,0,1,1]) --> A C E F"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2593 return (d for d, s in zip(data, selectors) if s)
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2594 */
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2595
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2596 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2597 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2598 PyObject *data;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2599 PyObject *selectors;
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2600 } compressobject;
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2601
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2602 static PyTypeObject compress_type;
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2603
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2604 static PyObject *
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2605 compress_new(PyTypeObject type, PyObject args, PyObject *kwds)
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2606 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2607 PyObject seq1, seq2;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2608 PyObject data=NULL, selectors=NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2609 compressobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2610 static char *kwargs[] = {"data", "selectors", NULL};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2611
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2612 if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO:compress", kwargs, &seq1, &seq2))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2613 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2614
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2615 data = PyObject_GetIter(seq1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2616 if (data == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2617 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2618 selectors = PyObject_GetIter(seq2);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2619 if (selectors == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2620 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2621
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2622 /* create compressobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2623 lz = (compressobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2624 if (lz == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2625 goto fail;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2626 lz->data = data;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2627 lz->selectors = selectors;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2628 return (PyObject *)lz;
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2629
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2630 fail:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2631 Py_XDECREF(data);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2632 Py_XDECREF(selectors);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2633 return NULL;
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2634 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2635
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2636 static void
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2637 compress_dealloc(compressobject *lz)
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2638 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2639 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2640 Py_XDECREF(lz->data);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2641 Py_XDECREF(lz->selectors);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2642 Py_TYPE(lz)->tp_free(lz);
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2643 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2644
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2645 static int
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2646 compress_traverse(compressobject lz, visitproc visit, void arg)
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2647 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2648 Py_VISIT(lz->data);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2649 Py_VISIT(lz->selectors);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2650 return 0;
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2651 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2652
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2653 static PyObject *
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2654 compress_next(compressobject *lz)
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2655 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2656 PyObject data = lz->data, selectors = lz->selectors;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2657 PyObject datum, selector;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2658 PyObject (datanext)(PyObject ) = Py_TYPE(data)->tp_iternext;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2659 PyObject (selectornext)(PyObject ) = Py_TYPE(selectors)->tp_iternext;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2660 int ok;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2661
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2662 while (1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2663 /* Steps: get datum, get selector, evaluate selector.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2664 Order is important (to match the pure python version
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2665 in terms of which input gets a chance to raise an
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2666 exception first).
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2667 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2668
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2669 datum = datanext(data);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2670 if (datum == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2671 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2672
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2673 selector = selectornext(selectors);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2674 if (selector == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2675 Py_DECREF(datum);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2676 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2677 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2678
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2679 ok = PyObject_IsTrue(selector);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2680 Py_DECREF(selector);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2681 if (ok == 1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2682 return datum;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2683 Py_DECREF(datum);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2684 if (ok == -1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2685 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2686 }
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2687 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2688
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2689 PyDoc_STRVAR(compress_doc,
51717 e260d6daf784 Add keyword arg support to itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 51666 diff changeset	2690 "compress(data, selectors) --> iterator over selected data\n\
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2691 \n\
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2692 Return data elements corresponding to true selector elements.\n\
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2693 Forms a shorter iterator from selected data elements using the\n\
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2694 selectors to choose the data elements.");
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2695
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2696 static PyTypeObject compress_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2697 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2698 "itertools.compress", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2699 sizeof(compressobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2700 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2701 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2702 (destructor)compress_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2703 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2704 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2705 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2706 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2707 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2708 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2709 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2710 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2711 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2712 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2713 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2714 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2715 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2716 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2717 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2718 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2719 compress_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2720 (traverseproc)compress_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2721 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2722 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2723 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2724 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2725 (iternextfunc)compress_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2726 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2727 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2728 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2729 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2730 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2731 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2732 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2733 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2734 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2735 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2736 compress_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2737 PyObject_GC_Del, /* tp_free */
51063 ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2738 };
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2739
ad1db0ae98c6 Forward port r68941 adding itertools.compress(). Raymond Hettinger <python@rcn.com> parents: 50755 diff changeset	2740
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2741 /* filterfalse object ************************************************************/
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2742
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2743 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2744 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2745 PyObject *func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2746 PyObject *it;
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2747 } filterfalseobject;
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2748
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2749 static PyTypeObject filterfalse_type;
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2750
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2751 static PyObject *
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2752 filterfalse_new(PyTypeObject type, PyObject args, PyObject *kwds)
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2753 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2754 PyObject func, seq;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2755 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2756 filterfalseobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2757
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2758 if (type == &filterfalse_type &&
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2759 !_PyArg_NoKeywords("filterfalse()", kwds))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2760 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2761
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2762 if (!PyArg_UnpackTuple(args, "filterfalse", 2, 2, &func, &seq))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2763 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2764
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2765 /* Get iterator. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2766 it = PyObject_GetIter(seq);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2767 if (it == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2768 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2769
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2770 /* create filterfalseobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2771 lz = (filterfalseobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2772 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2773 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2774 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2775 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2776 Py_INCREF(func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2777 lz->func = func;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2778 lz->it = it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2779
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2780 return (PyObject *)lz;
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2781 }
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2782
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2783 static void
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2784 filterfalse_dealloc(filterfalseobject *lz)
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2785 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2786 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2787 Py_XDECREF(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2788 Py_XDECREF(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2789 Py_TYPE(lz)->tp_free(lz);
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2790 }
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2791
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2792 static int
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2793 filterfalse_traverse(filterfalseobject lz, visitproc visit, void arg)
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2794 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2795 Py_VISIT(lz->it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2796 Py_VISIT(lz->func);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2797 return 0;
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2798 }
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2799
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2800 static PyObject *
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2801 filterfalse_next(filterfalseobject *lz)
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2802 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2803 PyObject *item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2804 PyObject *it = lz->it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2805 long ok;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2806 PyObject (iternext)(PyObject *);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2807
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2808 iternext = *Py_TYPE(it)->tp_iternext;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2809 for (;;) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2810 item = iternext(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2811 if (item == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2812 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2813
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2814 if (lz->func == Py_None \|\| lz->func == (PyObject *)&PyBool_Type) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2815 ok = PyObject_IsTrue(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2816 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2817 PyObject *good;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2818 good = PyObject_CallFunctionObjArgs(lz->func,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2819 item, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2820 if (good == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2821 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2822 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2823 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2824 ok = PyObject_IsTrue(good);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2825 Py_DECREF(good);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2826 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2827 if (!ok)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2828 return item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2829 Py_DECREF(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2830 }
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2831 }
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2832
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2833 PyDoc_STRVAR(filterfalse_doc,
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2834 "filterfalse(function or None, sequence) --> filterfalse object\n\
27769 dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2835 \n\
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2836 Return those items of sequence for which function(item) is false.\n\
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2837 If function is None, return the items that are false.");
dc5e1d918055 C Code: Raymond Hettinger <python@rcn.com> parents: 27748 diff changeset	2838
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	2839 static PyTypeObject filterfalse_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2840 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2841 "itertools.filterfalse", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2842 sizeof(filterfalseobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2843 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2844 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2845 (destructor)filterfalse_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2846 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2847 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2848 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2849 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2850 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2851 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2852 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2853 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2854 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2855 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2856 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2857 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2858 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2859 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2860 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2861 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2862 filterfalse_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2863 (traverseproc)filterfalse_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2864 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2865 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2866 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2867 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2868 (iternextfunc)filterfalse_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2869 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2870 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2871 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2872 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2873 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2874 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2875 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2876 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2877 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2878 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2879 filterfalse_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2880 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2881 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2882
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2883
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2884 /* count object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2885
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2886 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2887 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2888 Py_ssize_t cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2889 PyObject *long_cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2890 PyObject *long_step;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2891 } countobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2892
51542 b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	2893 /* Counting logic and invariants:
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	2894
51778 aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored. Raymond Hettinger <python@rcn.com> parents: 51719 diff changeset	2895 fast_mode: when cnt an integer < PY_SSIZE_T_MAX and no step is specified.
51542 b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	2896
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2897 assert(cnt != PY_SSIZE_T_MAX && long_cnt == NULL && long_step==PyInt(1));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2898 Advances with: cnt += 1
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2899 When count hits Y_SSIZE_T_MAX, switch to slow_mode.
51778 aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored. Raymond Hettinger <python@rcn.com> parents: 51719 diff changeset	2900
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored. Raymond Hettinger <python@rcn.com> parents: 51719 diff changeset	2901 slow_mode: when cnt == PY_SSIZE_T_MAX, step is not int(1), or cnt is a float.
51542 b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	2902
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2903 assert(cnt == PY_SSIZE_T_MAX && long_cnt != NULL && long_step != NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2904 All counting is done with python objects (no overflows or underflows).
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2905 Advances with: long_cnt += long_step
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2906 Step may be zero -- effectively a slow version of repeat(cnt).
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2907 Either long_cnt or long_step may be a float, Fraction, or Decimal.
51542 b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	2908 */
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	2909
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	2910 static PyTypeObject count_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2911
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2912 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2913 count_new(PyTypeObject type, PyObject args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2914 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2915 countobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2916 int slow_mode = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2917 Py_ssize_t cnt = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2918 PyObject *long_cnt = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2919 PyObject *long_step = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2920 static char *kwlist[] = {"start", "step", 0};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2921
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2922 if (!PyArg_ParseTupleAndKeywords(args, kwds, "\|OO:count",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2923 kwlist, &long_cnt, &long_step))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2924 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2925
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2926 if ((long_cnt != NULL && !PyNumber_Check(long_cnt)) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2927 (long_step != NULL && !PyNumber_Check(long_step))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2928 PyErr_SetString(PyExc_TypeError, "a number is required");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2929 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2930 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2931
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2932 if (long_cnt != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2933 cnt = PyLong_AsSsize_t(long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2934 if ((cnt == -1 && PyErr_Occurred()) \|\| !PyLong_Check(long_cnt)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2935 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2936 slow_mode = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2937 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2938 Py_INCREF(long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2939 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2940 cnt = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2941 long_cnt = PyLong_FromLong(0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2942 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2943
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2944 /* If not specified, step defaults to 1 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2945 if (long_step == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2946 long_step = PyLong_FromLong(1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2947 if (long_step == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2948 Py_DECREF(long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2949 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2950 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2951 } else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2952 Py_INCREF(long_step);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2953
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2954 assert(long_cnt != NULL && long_step != NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2955
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2956 /* Fast mode only works when the step is 1 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2957 if (!PyLong_Check(long_step) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2958 PyLong_AS_LONG(long_step) != 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2959 slow_mode = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2960 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2961
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2962 if (slow_mode)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2963 cnt = PY_SSIZE_T_MAX;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2964 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2965 Py_CLEAR(long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2966
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2967 assert((cnt != PY_SSIZE_T_MAX && long_cnt == NULL && !slow_mode) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2968 (cnt == PY_SSIZE_T_MAX && long_cnt != NULL && slow_mode));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2969 assert(slow_mode \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2970 (PyLong_Check(long_step) && PyLong_AS_LONG(long_step) == 1));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2971
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2972 /* create countobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2973 lz = (countobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2974 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2975 Py_XDECREF(long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2976 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2977 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2978 lz->cnt = cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2979 lz->long_cnt = long_cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2980 lz->long_step = long_step;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2981
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2982 return (PyObject *)lz;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2983 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	2984
43734 3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	2985 static void
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	2986 count_dealloc(countobject *lz)
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	2987 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2988 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2989 Py_XDECREF(lz->long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2990 Py_XDECREF(lz->long_step);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2991 Py_TYPE(lz)->tp_free(lz);
51661 003e00797e91 Add GC support to count() objects. Raymond Hettinger <python@rcn.com> parents: 51624 diff changeset	2992 }
003e00797e91 Add GC support to count() objects. Raymond Hettinger <python@rcn.com> parents: 51624 diff changeset	2993
51666 f308953c701f Merged revisions 69688,69690 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 51661 diff changeset	2994 static int
51661 003e00797e91 Add GC support to count() objects. Raymond Hettinger <python@rcn.com> parents: 51624 diff changeset	2995 count_traverse(countobject lz, visitproc visit, void arg)
003e00797e91 Add GC support to count() objects. Raymond Hettinger <python@rcn.com> parents: 51624 diff changeset	2996 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2997 Py_VISIT(lz->long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2998 Py_VISIT(lz->long_step);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	2999 return 0;
43734 3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3000 }
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3001
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3002 static PyObject *
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3003 count_nextlong(countobject *lz)
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3004 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3005 PyObject *long_cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3006 PyObject *stepped_up;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3007
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3008 long_cnt = lz->long_cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3009 if (long_cnt == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3010 /* Switch to slow_mode */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3011 long_cnt = PyLong_FromSsize_t(PY_SSIZE_T_MAX);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3012 if (long_cnt == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3013 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3014 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3015 assert(lz->cnt == PY_SSIZE_T_MAX && long_cnt != NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3016
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3017 stepped_up = PyNumber_Add(long_cnt, lz->long_step);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3018 if (stepped_up == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3019 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3020 lz->long_cnt = stepped_up;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3021 return long_cnt;
43734 3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3022 }
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from Guido van Rossum <guido@python.org> parents: 42334 diff changeset	3023
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3024 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3025 count_next(countobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3026 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3027 if (lz->cnt == PY_SSIZE_T_MAX)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3028 return count_nextlong(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3029 return PyLong_FromSsize_t(lz->cnt++);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3030 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3031
31890 848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3032 static PyObject *
848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3033 count_repr(countobject *lz)
848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3034 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3035 if (lz->cnt != PY_SSIZE_T_MAX)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3036 return PyUnicode_FromFormat("count(%zd)", lz->cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3037
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3038 if (PyLong_Check(lz->long_step)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3039 long step = PyLong_AsLong(lz->long_step);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3040 if (step == -1 && PyErr_Occurred()) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3041 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3042 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3043 if (step == 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3044 /* Don't display step when it is an integer equal to 1 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3045 return PyUnicode_FromFormat("count(%R)", lz->long_cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3046 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3047 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3048 return PyUnicode_FromFormat("count(%R, %R)",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3049 lz->long_cnt, lz->long_step);
31890 848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3050 }
848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3051
57525 0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3052 static PyObject *
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3053 count_reduce(countobject *lz)
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3054 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3055 if (lz->cnt == PY_SSIZE_T_MAX)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3056 return Py_BuildValue("O(OO)", Py_TYPE(lz), lz->long_cnt, lz->long_step);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3057 return Py_BuildValue("O(n)", Py_TYPE(lz), lz->cnt);
57525 0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3058 }
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3059
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3060 PyDoc_STRVAR(count_reduce_doc, "Return state information for pickling.");
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3061
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3062 static PyMethodDef count_methods[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3063 {"__reduce__", (PyCFunction)count_reduce, METH_NOARGS,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3064 count_reduce_doc},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3065 {NULL, NULL} /* sentinel */
57525 0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3066 };
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count. Raymond Hettinger <python@rcn.com> parents: 57344 diff changeset	3067
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3068 PyDoc_STRVAR(count_doc,
62240 4467c4c1d38e Merged revisions 81891 via svnmerge from Ezio Melotti <ezio.melotti@gmail.com> parents: 61467 diff changeset	3069 "count(start=0, step=1) --> count object\n\
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3070 \n\
51778 aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored. Raymond Hettinger <python@rcn.com> parents: 51719 diff changeset	3071 Return a count object whose .__next__() method returns consecutive values.\n\
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored. Raymond Hettinger <python@rcn.com> parents: 51719 diff changeset	3072 Equivalent to:\n\n\
51542 b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments. Raymond Hettinger <python@rcn.com> parents: 51503 diff changeset	3073 def count(firstval=0, step=1):\n\
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3074 x = firstval\n\
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3075 while 1:\n\
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3076 yield x\n\
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3077 x += step\n");
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3078
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	3079 static PyTypeObject count_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3080 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3081 "itertools.count", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3082 sizeof(countobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3083 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3084 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3085 (destructor)count_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3086 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3087 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3088 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3089 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3090 (reprfunc)count_repr, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3091 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3092 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3093 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3094 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3095 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3096 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3097 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3098 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3099 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3100 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3101 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3102 count_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3103 (traverseproc)count_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3104 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3105 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3106 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3107 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3108 (iternextfunc)count_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3109 count_methods, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3110 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3111 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3112 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3113 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3114 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3115 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3116 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3117 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3118 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3119 count_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3120 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3121 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3122
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3123
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3124 /* repeat object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3125
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3126 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3127 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3128 PyObject *element;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3129 Py_ssize_t cnt;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3130 } repeatobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3131
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	3132 static PyTypeObject repeat_type;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3133
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3134 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3135 repeat_new(PyTypeObject type, PyObject args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3136 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3137 repeatobject *ro;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3138 PyObject *element;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3139 Py_ssize_t cnt = -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3140 static char *kwargs[] = {"object", "times", NULL};
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3141
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3142 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O\|n:repeat", kwargs,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3143 &element, &cnt))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3144 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3145
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3146 if (PyTuple_Size(args) == 2 && cnt < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3147 cnt = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3148
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3149 ro = (repeatobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3150 if (ro == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3151 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3152 Py_INCREF(element);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3153 ro->element = element;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3154 ro->cnt = cnt;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3155 return (PyObject *)ro;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3156 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3157
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3158 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3159 repeat_dealloc(repeatobject *ro)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3160 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3161 PyObject_GC_UnTrack(ro);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3162 Py_XDECREF(ro->element);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3163 Py_TYPE(ro)->tp_free(ro);
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3164 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3165
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3166 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3167 repeat_traverse(repeatobject ro, visitproc visit, void arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3168 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3169 Py_VISIT(ro->element);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3170 return 0;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3171 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3172
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3173 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3174 repeat_next(repeatobject *ro)
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3175 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3176 if (ro->cnt == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3177 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3178 if (ro->cnt > 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3179 ro->cnt--;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3180 Py_INCREF(ro->element);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3181 return ro->element;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3182 }
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3183
31890 848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3184 static PyObject *
848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3185 repeat_repr(repeatobject *ro)
848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3186 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3187 if (ro->cnt == -1)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3188 return PyUnicode_FromFormat("repeat(%R)", ro->element);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3189 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3190 return PyUnicode_FromFormat("repeat(%R, %zd)", ro->element, ro->cnt);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3191 }
31890 848bce2215d3 Provide more information representations of repeat() and count(). Raymond Hettinger <python@rcn.com> parents: 31675 diff changeset	3192
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	3193 static PyObject *
31501 14f860b03be2 Give itertools.repeat() a length method. Raymond Hettinger <python@rcn.com> parents: 31136 diff changeset	3194 repeat_len(repeatobject *ro)
14f860b03be2 Give itertools.repeat() a length method. Raymond Hettinger <python@rcn.com> parents: 31136 diff changeset	3195 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3196 if (ro->cnt == -1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3197 PyErr_SetString(PyExc_TypeError, "len() of unsized object");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3198 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3199 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3200 return PyLong_FromSize_t(ro->cnt);
31501 14f860b03be2 Give itertools.repeat() a length method. Raymond Hettinger <python@rcn.com> parents: 31136 diff changeset	3201 }
14f860b03be2 Give itertools.repeat() a length method. Raymond Hettinger <python@rcn.com> parents: 31136 diff changeset	3202
36484 20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See: Armin Rigo <arigo@tunes.org> parents: 36324 diff changeset	3203 PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	3204
e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	3205 static PyMethodDef repeat_methods[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3206 {"__length_hint__", (PyCFunction)repeat_len, METH_NOARGS, length_hint_doc},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3207 {NULL, NULL} /* sentinel */
31501 14f860b03be2 Give itertools.repeat() a length method. Raymond Hettinger <python@rcn.com> parents: 31136 diff changeset	3208 };
14f860b03be2 Give itertools.repeat() a length method. Raymond Hettinger <python@rcn.com> parents: 31136 diff changeset	3209
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3210 PyDoc_STRVAR(repeat_doc,
51719 3dbdbc5e6d85 Add keyword arg support to itertools.repeat(). Raymond Hettinger <python@rcn.com> parents: 51717 diff changeset	3211 "repeat(object [,times]) -> create an iterator which returns the object\n\
3dbdbc5e6d85 Add keyword arg support to itertools.repeat(). Raymond Hettinger <python@rcn.com> parents: 51717 diff changeset	3212 for the specified number of times. If not specified, returns the object\n\
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	3213 endlessly.");
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3214
29850 45dc33433323 SF patch #770521: make itertools type declarations static Raymond Hettinger <python@rcn.com> parents: 29535 diff changeset	3215 static PyTypeObject repeat_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3216 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3217 "itertools.repeat", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3218 sizeof(repeatobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3219 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3220 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3221 (destructor)repeat_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3222 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3223 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3224 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3225 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3226 (reprfunc)repeat_repr, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3227 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3228 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3229 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3230 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3231 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3232 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3233 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3234 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3235 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3236 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3237 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3238 repeat_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3239 (traverseproc)repeat_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3240 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3241 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3242 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3243 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3244 (iternextfunc)repeat_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3245 repeat_methods, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3246 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3247 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3248 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3249 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3250 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3251 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3252 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3253 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3254 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3255 repeat_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3256 PyObject_GC_Del, /* tp_free */
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3257 };
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3258
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3259 /* ziplongest object ************************************************************/
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3260
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3261 #include "Python.h"
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3262
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3263 typedef struct {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3264 PyObject_HEAD
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3265 Py_ssize_t tuplesize;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3266 Py_ssize_t numactive;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3267 PyObject ittuple; / tuple of iterators */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3268 PyObject *result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3269 PyObject *fillvalue;
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3270 } ziplongestobject;
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3271
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3272 static PyTypeObject ziplongest_type;
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3273
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3274 static PyObject *
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	3275 zip_longest_new(PyTypeObject type, PyObject args, PyObject *kwds)
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3276 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3277 ziplongestobject *lz;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3278 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3279 PyObject ittuple; / tuple of iterators */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3280 PyObject *result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3281 PyObject *fillvalue = Py_None;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3282 Py_ssize_t tuplesize = PySequence_Length(args);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3283
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3284 if (kwds != NULL && PyDict_CheckExact(kwds) && PyDict_Size(kwds) > 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3285 fillvalue = PyDict_GetItemString(kwds, "fillvalue");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3286 if (fillvalue == NULL \|\| PyDict_Size(kwds) > 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3287 PyErr_SetString(PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3288 "zip_longest() got an unexpected keyword argument");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3289 return NULL;
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3290 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3291 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3292
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3293 /* args must be a tuple */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3294 assert(PyTuple_Check(args));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3295
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3296 /* obtain iterators */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3297 ittuple = PyTuple_New(tuplesize);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3298 if (ittuple == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3299 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3300 for (i=0; i < tuplesize; ++i) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3301 PyObject *item = PyTuple_GET_ITEM(args, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3302 PyObject *it = PyObject_GetIter(item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3303 if (it == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3304 if (PyErr_ExceptionMatches(PyExc_TypeError))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3305 PyErr_Format(PyExc_TypeError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3306 "zip_longest argument #%zd must support iteration",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3307 i+1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3308 Py_DECREF(ittuple);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3309 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3310 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3311 PyTuple_SET_ITEM(ittuple, i, it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3312 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3313
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3314 /* create a result holder */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3315 result = PyTuple_New(tuplesize);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3316 if (result == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3317 Py_DECREF(ittuple);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3318 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3319 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3320 for (i=0 ; i < tuplesize ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3321 Py_INCREF(Py_None);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3322 PyTuple_SET_ITEM(result, i, Py_None);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3323 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3324
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3325 /* create ziplongestobject structure */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3326 lz = (ziplongestobject *)type->tp_alloc(type, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3327 if (lz == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3328 Py_DECREF(ittuple);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3329 Py_DECREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3330 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3331 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3332 lz->ittuple = ittuple;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3333 lz->tuplesize = tuplesize;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3334 lz->numactive = tuplesize;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3335 lz->result = result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3336 Py_INCREF(fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3337 lz->fillvalue = fillvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3338 return (PyObject *)lz;
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3339 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3340
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3341 static void
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3342 zip_longest_dealloc(ziplongestobject *lz)
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3343 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3344 PyObject_GC_UnTrack(lz);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3345 Py_XDECREF(lz->ittuple);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3346 Py_XDECREF(lz->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3347 Py_XDECREF(lz->fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3348 Py_TYPE(lz)->tp_free(lz);
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3349 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3350
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3351 static int
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3352 zip_longest_traverse(ziplongestobject lz, visitproc visit, void arg)
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3353 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3354 Py_VISIT(lz->ittuple);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3355 Py_VISIT(lz->result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3356 Py_VISIT(lz->fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3357 return 0;
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3358 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3359
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3360 static PyObject *
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3361 zip_longest_next(ziplongestobject *lz)
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3362 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3363 Py_ssize_t i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3364 Py_ssize_t tuplesize = lz->tuplesize;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3365 PyObject *result = lz->result;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3366 PyObject *it;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3367 PyObject *item;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3368 PyObject *olditem;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3369
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3370 if (tuplesize == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3371 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3372 if (lz->numactive == 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3373 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3374 if (Py_REFCNT(result) == 1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3375 Py_INCREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3376 for (i=0 ; i < tuplesize ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3377 it = PyTuple_GET_ITEM(lz->ittuple, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3378 if (it == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3379 Py_INCREF(lz->fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3380 item = lz->fillvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3381 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3382 item = PyIter_Next(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3383 if (item == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3384 lz->numactive -= 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3385 if (lz->numactive == 0 \|\| PyErr_Occurred()) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3386 lz->numactive = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3387 Py_DECREF(result);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3388 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3389 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3390 Py_INCREF(lz->fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3391 item = lz->fillvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3392 PyTuple_SET_ITEM(lz->ittuple, i, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3393 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3394 }
57042 658eb58d2e68 Fix exception handling in itertools.izip_longest(). Raymond Hettinger <python@rcn.com> parents: 54839 diff changeset	3395 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3396 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3397 olditem = PyTuple_GET_ITEM(result, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3398 PyTuple_SET_ITEM(result, i, item);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3399 Py_DECREF(olditem);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3400 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3401 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3402 result = PyTuple_New(tuplesize);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3403 if (result == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3404 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3405 for (i=0 ; i < tuplesize ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3406 it = PyTuple_GET_ITEM(lz->ittuple, i);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3407 if (it == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3408 Py_INCREF(lz->fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3409 item = lz->fillvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3410 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3411 item = PyIter_Next(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3412 if (item == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3413 lz->numactive -= 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3414 if (lz->numactive == 0 \|\| PyErr_Occurred()) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3415 lz->numactive = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3416 Py_DECREF(result);
57042 658eb58d2e68 Fix exception handling in itertools.izip_longest(). Raymond Hettinger <python@rcn.com> parents: 54839 diff changeset	3417 return NULL;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3418 } else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3419 Py_INCREF(lz->fillvalue);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3420 item = lz->fillvalue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3421 PyTuple_SET_ITEM(lz->ittuple, i, NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3422 Py_DECREF(it);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3423 }
57042 658eb58d2e68 Fix exception handling in itertools.izip_longest(). Raymond Hettinger <python@rcn.com> parents: 54839 diff changeset	3424 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3425 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3426 PyTuple_SET_ITEM(result, i, item);
57042 658eb58d2e68 Fix exception handling in itertools.izip_longest(). Raymond Hettinger <python@rcn.com> parents: 54839 diff changeset	3427 }
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3428 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3429 return result;
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3430 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3431
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	3432 PyDoc_STRVAR(zip_longest_doc,
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	3433 "zip_longest(iter1 [,iter2 [...]], [fillvalue=None]) --> zip_longest object\n\
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3434 \n\
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	3435 Return an zip_longest object whose .__next__() method returns a tuple where\n\
41501 0c5019afc55b PEP 3114: rename .next() to .__next__() and add next() builtin. Georg Brandl <georg@python.org> parents: 40893 diff changeset	3436 the i-th element comes from the i-th iterable argument. The .__next__()\n\
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3437 method continues until the longest iterable in the argument sequence\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3438 is exhausted and then it raises StopIteration. When the shorter iterables\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3439 are exhausted, the fillvalue is substituted in their place. The fillvalue\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3440 defaults to None or can be specified by a keyword argument.\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3441 ");
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3442
45738 740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming. Raymond Hettinger <python@rcn.com> parents: 45736 diff changeset	3443 static PyTypeObject ziplongest_type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3444 PyVarObject_HEAD_INIT(NULL, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3445 "itertools.zip_longest", /* tp_name */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3446 sizeof(ziplongestobject), /* tp_basicsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3447 0, /* tp_itemsize */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3448 /* methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3449 (destructor)zip_longest_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3450 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3451 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3452 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3453 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3454 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3455 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3456 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3457 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3458 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3459 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3460 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3461 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3462 0, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3463 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3464 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3465 Py_TPFLAGS_BASETYPE, /* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3466 zip_longest_doc, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3467 (traverseproc)zip_longest_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3468 0, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3469 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3470 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3471 PyObject_SelfIter, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3472 (iternextfunc)zip_longest_next, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3473 0, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3474 0, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3475 0, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3476 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3477 0, /* tp_dict */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3478 0, /* tp_descr_get */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3479 0, /* tp_descr_set */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3480 0, /* tp_dictoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3481 0, /* tp_init */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3482 0, /* tp_alloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3483 zip_longest_new, /* tp_new */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3484 PyObject_GC_Del, /* tp_free */
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40737 diff changeset	3485 };
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3486
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3487 /* module level code ********************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3488
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3489 PyDoc_STRVAR(module_doc,
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3490 "Functional tools for creating and using iterators.\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3491 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3492 Infinite iterators:\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3493 count([n]) --> n, n+1, n+2, ...\n\
28024 61fa6b55c1de User requested changes to the itertools module. Raymond Hettinger <python@rcn.com> parents: 27770 diff changeset	3494 cycle(p) --> p0, p1, ... plast, p0, p1, ...\n\
28601 58db5fbd9c28 Fix docstring typo Andrew M. Kuchling <amk@amk.ca> parents: 28320 diff changeset	3495 repeat(elem [,n]) --> elem, elem, elem, ... endlessly or up to n times\n\
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3496 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3497 Iterators terminating on the shortest input sequence:\n\
51163 4f607c3ae8e2 Update itertools.__doc__ to include all tools. Raymond Hettinger <python@rcn.com> parents: 51100 diff changeset	3498 chain(p, q, ...) --> p0, p1, ... plast, q0, q1, ... \n\
4f607c3ae8e2 Update itertools.__doc__ to include all tools. Raymond Hettinger <python@rcn.com> parents: 51100 diff changeset	3499 compress(data, selectors) --> (d[0] if s[0]), (d[1] if s[1]), ...\n\
4f607c3ae8e2 Update itertools.__doc__ to include all tools. Raymond Hettinger <python@rcn.com> parents: 51100 diff changeset	3500 dropwhile(pred, seq) --> seq[n], seq[n+1], starting when pred fails\n\
4f607c3ae8e2 Update itertools.__doc__ to include all tools. Raymond Hettinger <python@rcn.com> parents: 51100 diff changeset	3501 groupby(iterable[, keyfunc]) --> sub-iterators grouped by value of keyfunc(v)\n\
45736 7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest(). Raymond Hettinger <python@rcn.com> parents: 45735 diff changeset	3502 filterfalse(pred, seq) --> elements of seq where pred(elem) is False\n\
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3503 islice(seq, [start,] stop [, step]) --> elements from\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3504 seq[start:stop:step]\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3505 starmap(fun, seq) --> fun(seq[0]), fun(seq[1]), ...\n\
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	3506 tee(it, n=2) --> (it1, it2 , ... itn) splits one iterator into n\n\
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3507 takewhile(pred, seq) --> seq[0], seq[1], until pred fails\n\
51163 4f607c3ae8e2 Update itertools.__doc__ to include all tools. Raymond Hettinger <python@rcn.com> parents: 51100 diff changeset	3508 zip_longest(p, q, ...) --> (p[0], q[0]), (p[1], q[1]), ... \n\
51165 4b8976ea6966 Fix typo. Raymond Hettinger <python@rcn.com> parents: 51163 diff changeset	3509 \n\
4b8976ea6966 Fix typo. Raymond Hettinger <python@rcn.com> parents: 51163 diff changeset	3510 Combinatoric generators:\n\
4b8976ea6966 Fix typo. Raymond Hettinger <python@rcn.com> parents: 51163 diff changeset	3511 product(p, q, ... [repeat=1]) --> cartesian product\n\
4b8976ea6966 Fix typo. Raymond Hettinger <python@rcn.com> parents: 51163 diff changeset	3512 permutations(p[, r])\n\
57344 a790f84fbafa Fix docstrings for itertools combinatoric functions. Raymond Hettinger <python@rcn.com> parents: 57042 diff changeset	3513 combinations(p, r)\n\
a790f84fbafa Fix docstrings for itertools combinatoric functions. Raymond Hettinger <python@rcn.com> parents: 57042 diff changeset	3514 combinations_with_replacement(p, r)\n\
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3515 ");
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3516
ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3517
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	3518 static PyMethodDef module_methods[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3519 {"tee", (PyCFunction)tee, METH_VARARGS, tee_doc},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3520 {NULL, NULL} /* sentinel */
30900 3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	3521 };
3096fab2a19c Improve the implementation of itertools.tee(). Raymond Hettinger <python@rcn.com> parents: 30800 diff changeset	3522
47580 94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API. Martin v. Löwis <martin@v.loewis.de> parents: 47555 diff changeset	3523
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API. Martin v. Löwis <martin@v.loewis.de> parents: 47555 diff changeset	3524 static struct PyModuleDef itertoolsmodule = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3525 PyModuleDef_HEAD_INIT,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3526 "itertools",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3527 module_doc,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3528 -1,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3529 module_methods,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3530 NULL,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3531 NULL,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3532 NULL,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3533 NULL
47580 94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API. Martin v. Löwis <martin@v.loewis.de> parents: 47555 diff changeset	3534 };
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API. Martin v. Löwis <martin@v.loewis.de> parents: 47555 diff changeset	3535
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3536 PyMODINIT_FUNC
47580 94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API. Martin v. Löwis <martin@v.loewis.de> parents: 47555 diff changeset	3537 PyInit_itertools(void)
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3538 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3539 int i;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3540 PyObject *m;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3541 char *name;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3542 PyTypeObject *typelist[] = {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3543 &combinations_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3544 &cwr_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3545 &cycle_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3546 &dropwhile_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3547 &takewhile_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3548 &islice_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3549 &starmap_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3550 &chain_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3551 &compress_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3552 &filterfalse_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3553 &count_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3554 &ziplongest_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3555 &permutations_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3556 &product_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3557 &repeat_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3558 &groupby_type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3559 NULL
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3560 };
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3561
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3562 Py_TYPE(&teedataobject_type) = &PyType_Type;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3563 m = PyModule_Create(&itertoolsmodule);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3564 if (m == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3565 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3566
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3567 for (i=0 ; typelist[i] != NULL ; i++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3568 if (PyType_Ready(typelist[i]) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3569 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3570 name = strchr(typelist[i]->tp_name, '.');
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3571 assert (name != NULL);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3572 Py_INCREF(typelist[i]);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3573 PyModule_AddObject(m, name+1, (PyObject *)typelist[i]);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3574 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3575
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3576 if (PyType_Ready(&teedataobject_type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3577 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3578 if (PyType_Ready(&tee_type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3579 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3580 if (PyType_Ready(&_grouper_type) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3581 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57525 diff changeset	3582 return m;
27570 ba57c3daf6e9 Move itertools module from the sandbox and into production. Raymond Hettinger <python@rcn.com> parents: diff changeset	3583 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/itertoolsmodule.c @ 64166:d0e9febfa00a 3.1