cpython-lru_cache-weakref: Objects/floatobject.c annotate

annotate Objects/floatobject.c @ 17581:c1937faabb23 2.1

Added support for optional explanation parameter to the \versionadded macro. Refactored do_cmd_versionadded() and do_cmd_versionchanged() to do most of the work in a helper function, with the do_cmd_*() wrappers just supplying a portion of the replacement text.

author	Fred Drake <fdrake@acm.org>
date	Wed, 18 Apr 2001 17:29:14 +0000
parents	65a638a24f7e
children	fe4c1034b480

rev	line source
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	1
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	2 /* Float object implementation */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	3
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	4 /* XXX There should be overflow checks here, but it's hard to check
82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	5 for any kind of float exception without losing portability. */
82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	6
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	7 #include "Python.h"
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	8
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 60 diff changeset	9 #include <ctype.h>
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	10
1271 2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	11 #ifdef i860
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	12 /* Cray APP has bogus definition of HUGE_VAL in <math.h> */
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	13 #undef HUGE_VAL
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	14 #endif
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	15
3704 17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	16 #if defined(HUGE_VAL) && !defined(CHECK)
496 0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	17 #define CHECK(x) if (errno != 0) ; \
0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	18 else if (-HUGE_VAL <= (x) && (x) <= HUGE_VAL) ; \
0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	19 else errno = ERANGE
3704 17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	20 #endif
17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	21
17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	22 #ifndef CHECK
496 0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	23 #define CHECK(x) /* Don't know how to check */
0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	24 #endif
0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	25
2433 6cbd2830b5a2 for MPW __SC__ compiler Guido van Rossum <guido@python.org> parents: 2327 diff changeset	26 #if !defined(__STDC__) && !defined(macintosh)
13447 a89f7f268de4 Nuke all remaining occurrences of Py_PROTO and Py_FPROTO. Tim Peters <tim.peters@gmail.com> parents: 13256 diff changeset	27 extern double fmod(double, double);
a89f7f268de4 Nuke all remaining occurrences of Py_PROTO and Py_FPROTO. Tim Peters <tim.peters@gmail.com> parents: 13256 diff changeset	28 extern double pow(double, double);
60 4f593b38d061 Moved prototyes for fmod and pow, and don't use them for THINK C. Guido van Rossum <guido@python.org> parents: 46 diff changeset	29 #endif
4f593b38d061 Moved prototyes for fmod and pow, and don't use them for THINK C. Guido van Rossum <guido@python.org> parents: 46 diff changeset	30
16999 eee7d0c5ae59 Avoid giving prototypes on Solaris. Martin v. Löwis <martin@v.loewis.de> parents: 16401 diff changeset	31 #if defined(sun) && !defined(__SVR4)
6537 25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	32 /* On SunOS4.1 only libm.a exists. Make sure that references to all
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	33 needed math functions exist in the executable, so that dynamic
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	34 loading of mathmodule does not fail. */
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	35 double (*_Py_math_funcs_hack[])() = {
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	36 acos, asin, atan, atan2, ceil, cos, cosh, exp, fabs, floor,
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	37 fmod, log, log10, pow, sin, sinh, sqrt, tan, tanh
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	38 };
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	39 #endif
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	40
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	41 /* Special free list -- see comments for same code in intobject.c. */
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	42 #define BLOCK_SIZE 1000 /* 1K less typical malloc overhead */
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	43 #define BHEAD_SIZE 8 /* Enough for a 64-bit pointer */
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	44 #define N_FLOATOBJECTS ((BLOCK_SIZE - BHEAD_SIZE) / sizeof(PyFloatObject))
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	45
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	46 struct _floatblock {
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	47 struct _floatblock *next;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	48 PyFloatObject objects[N_FLOATOBJECTS];
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	49 };
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	50
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	51 typedef struct _floatblock PyFloatBlock;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	52
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	53 static PyFloatBlock *block_list = NULL;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	54 static PyFloatObject *free_list = NULL;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	55
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	56 static PyFloatObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	57 fill_free_list(void)
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	58 {
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	59 PyFloatObject p, q;
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 12248 diff changeset	60 /* XXX Float blocks escape the object heap. Use PyObject_MALLOC ??? */
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 12248 diff changeset	61 p = (PyFloatObject *) PyMem_MALLOC(sizeof(PyFloatBlock));
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	62 if (p == NULL)
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 12248 diff changeset	63 return (PyFloatObject *) PyErr_NoMemory();
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	64 ((PyFloatBlock *)p)->next = block_list;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	65 block_list = (PyFloatBlock *)p;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	66 p = &((PyFloatBlock *)p)->objects[0];
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	67 q = p + N_FLOATOBJECTS;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	68 while (--q > p)
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	69 q->ob_type = (struct _typeobject *)(q-1);
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	70 q->ob_type = NULL;
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	71 return p + N_FLOATOBJECTS - 1;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	72 }
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	73
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	74 PyObject *
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	75 PyFloat_FromDouble(double fval)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	76 {
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	77 register PyFloatObject *op;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	78 if (free_list == NULL) {
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	79 if ((free_list = fill_free_list()) == NULL)
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	80 return NULL;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	81 }
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 12248 diff changeset	82 /* PyObject_New is inlined */
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	83 op = free_list;
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	84 free_list = (PyFloatObject *)op->ob_type;
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 12248 diff changeset	85 PyObject_INIT(op, &PyFloat_Type);
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	86 op->ob_fval = fval;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	87 return (PyObject *) op;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	88 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	89
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	90 /**************************************************************************
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	91 RED_FLAG 22-Sep-2000 tim
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	92 PyFloat_FromString's pend argument is braindead. Prior to this RED_FLAG,
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	93
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	94 1. If v was a regular string, *pend was set to point to its terminating
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	95 null byte. That's useless (the caller can find that without any
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	96 help from this function!).
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	97
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	98 2. If v was a Unicode string, or an object convertible to a character
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	99 buffer, *pend was set to point into stack trash (the auto temp
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	100 vector holding the character buffer). That was downright dangerous.
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	101
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	102 Since we can't change the interface of a public API function, pend is
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	103 still supported but now officially useless: if pend is not NULL,
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	104 *pend is set to NULL.
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	105 **************************************************************************/
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	106 PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	107 PyFloat_FromString(PyObject v, char *pend)
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	108 {
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	109 const char s, last, *end;
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	110 double x;
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	111 char buffer[256]; /* for errors */
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	112 char s_buffer[256]; /* for objects convertible to a char buffer */
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	113 int len;
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	114
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	115 if (pend)
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	116 *pend = NULL;
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	117 if (PyString_Check(v)) {
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	118 s = PyString_AS_STRING(v);
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	119 len = PyString_GET_SIZE(v);
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	120 }
12248 70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	121 else if (PyUnicode_Check(v)) {
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	122 if (PyUnicode_GET_SIZE(v) >= sizeof(s_buffer)) {
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	123 PyErr_SetString(PyExc_ValueError,
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	124 "Unicode float() literal too long to convert");
12248 70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	125 return NULL;
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	126 }
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	127 if (PyUnicode_EncodeDecimal(PyUnicode_AS_UNICODE(v),
12248 70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	128 PyUnicode_GET_SIZE(v),
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	129 s_buffer,
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	130 NULL))
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	131 return NULL;
70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	132 s = s_buffer;
13944 648ba4044455 Clean up a warning on Win64. The downcast of the strlen size_t Trent Mick <trentm@activestate.com> parents: 13761 diff changeset	133 len = (int)strlen(s);
12248 70154e2e9c89 Marc-Andre's third try at this bulk patch seems to work (except that Guido van Rossum <guido@python.org> parents: 11969 diff changeset	134 }
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	135 else if (PyObject_AsCharBuffer(v, &s, &len)) {
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	136 PyErr_SetString(PyExc_TypeError,
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	137 "float() needs a string argument");
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	138 return NULL;
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	139 }
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	140
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	141 last = s + len;
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	142 while (s && isspace(Py_CHARMASK(s)))
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	143 s++;
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	144 if (*s == '\0') {
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	145 PyErr_SetString(PyExc_ValueError, "empty string for float()");
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	146 return NULL;
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	147 }
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	148 /* We don't care about overflow or underflow. If the platform supports
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	149 * them, infinities and signed zeroes (on underflow) are fine.
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	150 * However, strtod can return 0 for denormalized numbers, where atof
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	151 * does not. So (alas!) we special-case a zero result. Note that
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	152 * whether strtod sets errno on underflow is not defined, so we can't
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	153 * key off errno.
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	154 */
14851 5449302c4d2e Replace SIGFPE paranoia around strtod and atof. I don't believe these Tim Peters <tim.peters@gmail.com> parents: 14783 diff changeset	155 PyFPE_START_PROTECT("strtod", return NULL)
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	156 x = strtod(s, (char **)&end);
14851 5449302c4d2e Replace SIGFPE paranoia around strtod and atof. I don't believe these Tim Peters <tim.peters@gmail.com> parents: 14783 diff changeset	157 PyFPE_END_PROTECT(x)
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	158 errno = 0;
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	159 /* Believe it or not, Solaris 2.6 can move end beyond the null
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	160 byte at the end of the string, when the input is inf(inity). */
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	161 if (end > last)
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	162 end = last;
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	163 if (end == s) {
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	164 sprintf(buffer, "invalid literal for float(): %.200s", s);
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	165 PyErr_SetString(PyExc_ValueError, buffer);
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	166 return NULL;
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	167 }
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	168 /* Since end != s, the platform made some kind of sense out
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	169 of the input. Trust it. */
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	170 while (end && isspace(Py_CHARMASK(end)))
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	171 end++;
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	172 if (*end != '\0') {
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	173 sprintf(buffer, "invalid literal for float(): %.200s", s);
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	174 PyErr_SetString(PyExc_ValueError, buffer);
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	175 return NULL;
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	176 }
11969 74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg. Guido van Rossum <guido@python.org> parents: 11673 diff changeset	177 else if (end != last) {
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	178 PyErr_SetString(PyExc_ValueError,
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	179 "null byte in argument for float()");
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	180 return NULL;
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	181 }
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	182 if (x == 0.0) {
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	183 /* See above -- may have been strtod being anal
77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	184 about denorms. */
14851 5449302c4d2e Replace SIGFPE paranoia around strtod and atof. I don't believe these Tim Peters <tim.peters@gmail.com> parents: 14783 diff changeset	185 PyFPE_START_PROTECT("atof", return NULL)
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	186 x = atof(s);
14851 5449302c4d2e Replace SIGFPE paranoia around strtod and atof. I don't believe these Tim Peters <tim.peters@gmail.com> parents: 14783 diff changeset	187 PyFPE_END_PROTECT(x)
14783 77eddddbb7cc Fix for SF bug 110624: float literals behave inconsistently. Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	188 errno = 0; /* whether atof ever set errno is undefined */
11383 aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	189 }
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	190 return PyFloat_FromDouble(x);
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	191 }
aca7b5eaf5e8 Mainlining the string_methods branch. See branch revision log Barry Warsaw <barry@python.org> parents: 10833 diff changeset	192
1313 6ee380349c84 * Added gmtime/localtime/mktime and SYSV timezone globals to timemodule.c. Guido van Rossum <guido@python.org> parents: 1271 diff changeset	193 static void
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	194 float_dealloc(PyFloatObject *op)
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	195 {
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	196 op->ob_type = (struct _typeobject *)free_list;
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	197 free_list = op;
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	198 }
c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	199
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	200 double
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	201 PyFloat_AsDouble(PyObject *op)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	202 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	203 PyNumberMethods *nb;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	204 PyFloatObject *fo;
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	205 double val;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	206
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	207 if (op && PyFloat_Check(op))
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	208 return PyFloat_AS_DOUBLE((PyFloatObject*) op);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	209
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	210 if (op == NULL \|\| (nb = op->ob_type->tp_as_number) == NULL \|\|
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	211 nb->nb_float == NULL) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	212 PyErr_BadArgument();
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	213 return -1;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	214 }
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	215
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	216 fo = (PyFloatObject) (nb->nb_float) (op);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	217 if (fo == NULL)
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	218 return -1;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	219 if (!PyFloat_Check(fo)) {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	220 PyErr_SetString(PyExc_TypeError,
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	221 "nb_float should return float object");
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	222 return -1;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	223 }
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	224
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	225 val = PyFloat_AS_DOUBLE(fo);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	226 Py_DECREF(fo);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	227
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	228 return val;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	229 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	230
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	231 /* Methods */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	232
268 0fe2471166f0 Export float_buf_repr() interface, for marshalling of floats. Guido van Rossum <guido@python.org> parents: 249 diff changeset	233 void
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	234 PyFloat_AsStringEx(char buf, PyFloatObject v, int precision)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	235 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	236 register char *cp;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	237 /* Subroutine for float_repr and float_print.
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	238 We want float numbers to be recognizable as such,
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	239 i.e., they should contain a decimal point or an exponent.
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	240 However, %g may print the number as an integer;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	241 in such cases, we append ".0" to the string. */
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	242 sprintf(buf, "%.*g", precision, v->ob_fval);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	243 cp = buf;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	244 if (*cp == '-')
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	245 cp++;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	246 for (; *cp != '\0'; cp++) {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	247 /* Any non-digit means it's not an integer;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	248 this takes care of NAN and INF as well. */
2308 14b126d0b5be use Py_CHARMASK; and don't check for neg. float to the float power here Guido van Rossum <guido@python.org> parents: 2156 diff changeset	249 if (!isdigit(Py_CHARMASK(*cp)))
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	250 break;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	251 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	252 if (*cp == '\0') {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	253 *cp++ = '.';
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	254 *cp++ = '0';
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	255 *cp++ = '\0';
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	256 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	257 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	258
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	259 /* Macro and helper that convert PyObject obj to a C double and store
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	260 the value in dbl; this replaces the functionality of the coercion
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	261 slot function */
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	262
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	263 #define CONVERT_TO_DOUBLE(obj, dbl) \
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	264 if (PyFloat_Check(obj)) \
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	265 dbl = PyFloat_AS_DOUBLE(obj); \
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	266 else if (convert_to_double(&(obj), &(dbl)) < 0) \
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	267 return obj;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	268
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	269 static int
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	270 convert_to_double(PyObject **v,
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	271 double *dbl)
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	272 {
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	273 register PyObject obj = v;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	274
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	275 if (PyInt_Check(obj)) {
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	276 *dbl = (double)PyInt_AS_LONG(obj);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	277 }
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	278 else if (PyLong_Check(obj)) {
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	279 PyFPE_START_PROTECT("convert_to_double", {*v=NULL;return -1;})
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	280 *dbl = PyLong_AsDouble(obj);
16401 abe85d2622f9 SF patch 103543 from tg@freebsd.org: Jeremy Hylton <jeremy@alum.mit.edu> parents: 15947 diff changeset	281 PyFPE_END_PROTECT(*dbl)
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	282 }
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	283 else {
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	284 Py_INCREF(Py_NotImplemented);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	285 *v = Py_NotImplemented;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	286 return -1;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	287 }
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	288 return 0;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	289 }
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	290
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	291 /* Precisions used by repr() and str(), respectively.
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	292
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	293 The repr() precision (17 significant decimal digits) is the minimal number
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	294 that is guaranteed to have enough precision so that if the number is read
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	295 back in the exact same binary value is recreated. This is true for IEEE
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	296 floating point by design, and also happens to work for all other modern
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	297 hardware.
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	298
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	299 The str() precision is chosen so that in most cases, the rounding noise
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	300 created by various operations is suppressed, while giving plenty of
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	301 precision for practical use.
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	302
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	303 */
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	304
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	305 #define PREC_REPR 17
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	306 #define PREC_STR 12
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	307
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	308 void
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	309 PyFloat_AsString(char buf, PyFloatObject v)
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	310 {
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	311 PyFloat_AsStringEx(buf, v, PREC_STR);
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	312 }
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	313
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	314 /* ARGSUSED */
284 6ac402023cac printobject now returns an error code Guido van Rossum <guido@python.org> parents: 268 diff changeset	315 static int
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	316 float_print(PyFloatObject v, FILE fp, int flags)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	317 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	318 char buf[100];
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	319 PyFloat_AsStringEx(buf, v, flags&Py_PRINT_RAW ? PREC_STR : PREC_REPR);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	320 fputs(buf, fp);
284 6ac402023cac printobject now returns an error code Guido van Rossum <guido@python.org> parents: 268 diff changeset	321 return 0;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	322 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	323
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	324 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	325 float_repr(PyFloatObject *v)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	326 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	327 char buf[100];
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	328 PyFloat_AsStringEx(buf, v, PREC_REPR);
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	329 return PyString_FromString(buf);
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	330 }
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	331
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	332 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	333 float_str(PyFloatObject *v)
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	334 {
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	335 char buf[100];
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	336 PyFloat_AsStringEx(buf, v, PREC_STR);
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	337 return PyString_FromString(buf);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	338 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	339
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	340 static int
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	341 float_compare(PyFloatObject v, PyFloatObject w)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	342 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	343 double i = v->ob_fval;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	344 double j = w->ob_fval;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	345 return (i < j) ? -1 : (i > j) ? 1 : 0;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	346 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	347
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	348 static long
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	349 float_hash(PyFloatObject *v)
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	350 {
13976 5ada9fa54801 Fix for http://sourceforge.net/bugs/?func=detailbug&bug_id=111866&group_id=5470. Tim Peters <tim.peters@gmail.com> parents: 13944 diff changeset	351 return _Py_HashDouble(v->ob_fval);
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	352 }
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	353
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	354 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	355 float_add(PyObject v, PyObject w)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	356 {
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	357 double a,b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	358 CONVERT_TO_DOUBLE(v, a);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	359 CONVERT_TO_DOUBLE(w, b);
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	360 PyFPE_START_PROTECT("add", return 0)
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	361 a = a + b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	362 PyFPE_END_PROTECT(a)
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	363 return PyFloat_FromDouble(a);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	364 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	365
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	366 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	367 float_sub(PyObject v, PyObject w)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	368 {
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	369 double a,b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	370 CONVERT_TO_DOUBLE(v, a);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	371 CONVERT_TO_DOUBLE(w, b);
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	372 PyFPE_START_PROTECT("subtract", return 0)
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	373 a = a - b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	374 PyFPE_END_PROTECT(a)
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	375 return PyFloat_FromDouble(a);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	376 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	377
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	378 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	379 float_mul(PyObject v, PyObject w)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	380 {
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	381 double a,b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	382 CONVERT_TO_DOUBLE(v, a);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	383 CONVERT_TO_DOUBLE(w, b);
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	384 PyFPE_START_PROTECT("multiply", return 0)
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	385 a = a * b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	386 PyFPE_END_PROTECT(a)
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	387 return PyFloat_FromDouble(a);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	388 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	389
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	390 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	391 float_div(PyObject v, PyObject w)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	392 {
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	393 double a,b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	394 CONVERT_TO_DOUBLE(v, a);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	395 CONVERT_TO_DOUBLE(w, b);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	396 if (b == 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	397 PyErr_SetString(PyExc_ZeroDivisionError, "float division");
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	398 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	399 }
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	400 PyFPE_START_PROTECT("divide", return 0)
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	401 a = a / b;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	402 PyFPE_END_PROTECT(a)
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	403 return PyFloat_FromDouble(a);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	404 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	405
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	406 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	407 float_rem(PyObject v, PyObject w)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	408 {
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	409 double vx, wx;
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	410 double mod;
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	411 CONVERT_TO_DOUBLE(v, vx);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	412 CONVERT_TO_DOUBLE(w, wx);
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	413 if (wx == 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	414 PyErr_SetString(PyExc_ZeroDivisionError, "float modulo");
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	415 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	416 }
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	417 PyFPE_START_PROTECT("modulo", return 0)
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	418 mod = fmod(vx, wx);
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	419 /* note: checking mod*wx < 0 is incorrect -- underflows to
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	420 0 if wx < sqrt(smallest nonzero double) */
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	421 if (mod && ((wx < 0) != (mod < 0))) {
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	422 mod += wx;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	423 }
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	424 PyFPE_END_PROTECT(mod)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	425 return PyFloat_FromDouble(mod);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	426 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	427
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	428 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	429 float_divmod(PyObject v, PyObject w)
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	430 {
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	431 double vx, wx;
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	432 double div, mod, floordiv;
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	433 CONVERT_TO_DOUBLE(v, vx);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	434 CONVERT_TO_DOUBLE(w, wx);
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	435 if (wx == 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	436 PyErr_SetString(PyExc_ZeroDivisionError, "float divmod()");
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	437 return NULL;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	438 }
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	439 PyFPE_START_PROTECT("divmod", return 0)
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	440 mod = fmod(vx, wx);
14616 284508c653c7 Fixed legit gripe from c.l.py that math.fmod docs aren't confusing enough. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	441 /* fmod is typically exact, so vx-mod is mathematically an
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	442 exact multiple of wx. But this is fp arithmetic, and fp
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	443 vx - mod is an approximation; the result is that div may
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	444 not be an exact integral value after the division, although
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	445 it will always be very close to one.
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	446 */
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	447 div = (vx - mod) / wx;
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	448 /* note: checking mod*wx < 0 is incorrect -- underflows to
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	449 0 if wx < sqrt(smallest nonzero double) */
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	450 if (mod && ((wx < 0) != (mod < 0))) {
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	451 mod += wx;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	452 div -= 1.0;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	453 }
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	454 /* snap quotient to nearest integral value */
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	455 floordiv = floor(div);
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	456 if (div - floordiv > 0.5)
135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	457 floordiv += 1.0;
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	458 PyFPE_END_PROTECT(div)
10833 135c1ec9636c Tim Peters writes: Guido van Rossum <guido@python.org> parents: 10432 diff changeset	459 return Py_BuildValue("(dd)", floordiv, mod);
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	460 }
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	461
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	462 static double powu(double x, long n)
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	463 {
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	464 double r = 1.;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	465 double p = x;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	466 long mask = 1;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	467 while (mask > 0 && n >= mask) {
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	468 if (n & mask)
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	469 r *= p;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	470 mask <<= 1;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	471 p *= p;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	472 }
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	473 return r;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	474 }
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	475
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	476 static PyObject *
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	477 float_pow(PyObject v, PyObject w, PyObject *z)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	478 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	479 double iv, iw, ix;
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	480 long intw;
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	481 /* XXX Doesn't handle overflows if z!=None yet; it may never do so :(
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	482 * The z parameter is really only going to be useful for integers and
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	483 * long integers. Maybe something clever with logarithms could be done.
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	484 * [AMK]
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	485 */
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	486 CONVERT_TO_DOUBLE(v, iv);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	487 CONVERT_TO_DOUBLE(w, iw);
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	488 intw = (long)iw;
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	489
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	490 /* Sort out special cases here instead of relying on pow() */
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	491 if (iw == 0) { /* x0 is 1, even 00 */
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	492 PyFPE_START_PROTECT("pow", return NULL)
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	493 if ((PyObject *)z != Py_None) {
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	494 double iz;
15761 95ee79dfd746 Fix a silly bug in float_pow. Sorry Tim. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15723 diff changeset	495 CONVERT_TO_DOUBLE(z, iz);
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	496 ix=fmod(1.0, iz);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	497 if (ix!=0 && iz<0) ix+=iz;
249 bab1f5494b8e Fix special cases in pow() Guido van Rossum <guido@python.org> parents: 239 diff changeset	498 }
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	499 else
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	500 ix = 1.0;
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	501 PyFPE_END_PROTECT(ix)
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	502 return PyFloat_FromDouble(ix);
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	503 }
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	504 if (iv == 0.0) {
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	505 if (iw < 0.0) {
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	506 PyErr_SetString(PyExc_ZeroDivisionError,
15318 8aa947e1eee8 Ka-Ping Yee <ping@lfw.org>: Fred Drake <fdrake@acm.org> parents: 15041 diff changeset	507 "0.0 cannot be raised to a negative power");
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	508 return NULL;
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	509 }
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	510 return PyFloat_FromDouble(0.0);
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	511 }
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	512
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	513 if (iw == intw && intw > LONG_MIN) {
7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	514 /* ruled out LONG_MIN because -LONG_MIN isn't representable */
3984 0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	515 errno = 0;
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	516 PyFPE_START_PROTECT("pow", return NULL)
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	517 if (intw > 0)
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	518 ix = powu(iv, intw);
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	519 else
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	520 ix = 1./powu(iv, -intw);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	521 PyFPE_END_PROTECT(ix)
3984 0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	522 }
0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	523 else {
0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	524 /* Sort out special cases here instead of relying on pow() */
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	525 if (iv < 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	526 PyErr_SetString(PyExc_ValueError,
15318 8aa947e1eee8 Ka-Ping Yee <ping@lfw.org>: Fred Drake <fdrake@acm.org> parents: 15041 diff changeset	527 "negative number cannot be raised to a fractional power");
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	528 return NULL;
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	529 }
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	530 errno = 0;
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	531 PyFPE_START_PROTECT("pow", return NULL)
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	532 ix = pow(iv, iw);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	533 PyFPE_END_PROTECT(ix)
249 bab1f5494b8e Fix special cases in pow() Guido van Rossum <guido@python.org> parents: 239 diff changeset	534 }
496 0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	535 CHECK(ix);
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	536 if (errno != 0) {
82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	537 /* XXX could it be another type of error? */
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	538 PyErr_SetFromErrno(PyExc_OverflowError);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	539 return NULL;
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	540 }
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	541 if ((PyObject *)z != Py_None) {
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	542 double iz;
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	543 CONVERT_TO_DOUBLE(z, iz);
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	544 PyFPE_START_PROTECT("pow", return 0)
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	545 ix=fmod(ix, iz); /* XXX To Be Rewritten */
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	546 if (ix!=0 && ((iv<0 && iz>0) \|\| (iv>0 && iz<0) )) {
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	547 ix+=iz;
15041 7eefde90ec0e SF bug 115831 and Ping's SF patch 101751, 0.0*-2.0 returns inf rather than Tim Peters <tim.peters@gmail.com>* parents: 14869 diff changeset	548 }
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	549 PyFPE_END_PROTECT(ix)
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	550 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	551 return PyFloat_FromDouble(ix);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	552 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	553
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	554 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	555 float_neg(PyFloatObject *v)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	556 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	557 return PyFloat_FromDouble(-v->ob_fval);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	558 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	559
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	560 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	561 float_pos(PyFloatObject *v)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	562 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	563 Py_INCREF(v);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	564 return (PyObject *)v;
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	565 }
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	566
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	567 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	568 float_abs(PyFloatObject *v)
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	569 {
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	570 if (v->ob_fval < 0)
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	571 return float_neg(v);
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	572 else
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	573 return float_pos(v);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	574 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	575
239 fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	576 static int
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	577 float_nonzero(PyFloatObject *v)
239 fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	578 {
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	579 return v->ob_fval != 0.0;
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	580 }
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	581
1313 6ee380349c84 * Added gmtime/localtime/mktime and SYSV timezone globals to timemodule.c. Guido van Rossum <guido@python.org> parents: 1271 diff changeset	582 static int
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	583 float_coerce(PyObject pv, PyObject pw)
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	584 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	585 if (PyInt_Check(*pw)) {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	586 long x = PyInt_AsLong(*pw);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	587 *pw = PyFloat_FromDouble((double)x);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	588 Py_INCREF(*pv);
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	589 return 0;
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	590 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	591 else if (PyLong_Check(*pw)) {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	592 pw = PyFloat_FromDouble(PyLong_AsDouble(pw));
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	593 Py_INCREF(*pv);
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	594 return 0;
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	595 }
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	596 return 1; /* Can't do it */
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	597 }
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	598
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	599 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	600 float_int(PyObject *v)
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	601 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	602 double x = PyFloat_AsDouble(v);
1908 0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	603 if (x < 0 ? (x = ceil(x)) < (double)LONG_MIN
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	604 : (x = floor(x)) > (double)LONG_MAX) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	605 PyErr_SetString(PyExc_OverflowError,
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	606 "float too large to convert");
1908 0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	607 return NULL;
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	608 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	609 return PyInt_FromLong((long)x);
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	610 }
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	611
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	612 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	613 float_long(PyObject *v)
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	614 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	615 double x = PyFloat_AsDouble(v);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	616 return PyLong_FromDouble(x);
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	617 }
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	618
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	619 static PyObject *
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	620 float_float(PyObject *v)
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	621 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	622 Py_INCREF(v);
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	623 return v;
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	624 }
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	625
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	626
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	627 static PyNumberMethods float_as_number = {
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	628 (binaryfunc)float_add, /nb_add/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	629 (binaryfunc)float_sub, /nb_subtract/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	630 (binaryfunc)float_mul, /nb_multiply/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	631 (binaryfunc)float_div, /nb_divide/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	632 (binaryfunc)float_rem, /nb_remainder/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	633 (binaryfunc)float_divmod, /nb_divmod/
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	634 (ternaryfunc)float_pow, /nb_power/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	635 (unaryfunc)float_neg, /nb_negative/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	636 (unaryfunc)float_pos, /nb_positive/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	637 (unaryfunc)float_abs, /nb_absolute/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	638 (inquiry)float_nonzero, /nb_nonzero/
405 d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	639 0, /nb_invert/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	640 0, /nb_lshift/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	641 0, /nb_rshift/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	642 0, /nb_and/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	643 0, /nb_xor/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	644 0, /nb_or/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	645 (coercion)float_coerce, /nb_coerce/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	646 (unaryfunc)float_int, /nb_int/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	647 (unaryfunc)float_long, /nb_long/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	648 (unaryfunc)float_float, /nb_float/
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	649 0, /nb_oct/
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	650 0, /nb_hex/
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	651 0, /nb_inplace_add/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	652 0, /nb_inplace_subtract/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	653 0, /nb_inplace_multiply/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	654 0, /nb_inplace_divide/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	655 0, /nb_inplace_remainder/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	656 0, /nb_inplace_power/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	657 0, /nb_inplace_lshift/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	658 0, /nb_inplace_rshift/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	659 0, /nb_inplace_and/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	660 0, /nb_inplace_xor/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	661 0, /nb_inplace_or/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	662 };
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	663
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	664 PyTypeObject PyFloat_Type = {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	665 PyObject_HEAD_INIT(&PyType_Type)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	666 0,
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	667 "float",
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	668 sizeof(PyFloatObject),
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	669 0,
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	670 (destructor)float_dealloc, /tp_dealloc/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	671 (printfunc)float_print, /tp_print/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	672 0, /tp_getattr/
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	673 0, /tp_setattr/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	674 (cmpfunc)float_compare, /tp_compare/
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	675 (reprfunc)float_repr, /tp_repr/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	676 &float_as_number, /tp_as_number/
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	677 0, /tp_as_sequence/
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	678 0, /tp_as_mapping/
11631 cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	679 (hashfunc)float_hash, /tp_hash/
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	680 0, /tp_call/
cf7a0f1b7b48 Implement the other easy thing: repr() of a float now uses %.17g, Guido van Rossum <guido@python.org> parents: 11383 diff changeset	681 (reprfunc)float_str, /tp_str/
15723 ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	682 0, /tp_getattro/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	683 0, /tp_setattro/
ac7ae3ead88a Make float a new style number type. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15318 diff changeset	684 0, /tp_as_buffer/
15947 6a85248b439e Rich comparisons fall-out: Guido van Rossum <guido@python.org> parents: 15761 diff changeset	685 Py_TPFLAGS_CHECKTYPES /tp_flags/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	686 };
5936 80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	687
80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	688 void
13454 fcc75a3748f5 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13447 diff changeset	689 PyFloat_Fini(void)
5936 80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	690 {
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	691 PyFloatObject *p;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	692 PyFloatBlock list, next;
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	693 int i;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	694 int bc, bf; /* block count, number of freed blocks */
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	695 int frem, fsum; /* remaining unfreed floats per block, total */
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	696
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	697 bc = 0;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	698 bf = 0;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	699 fsum = 0;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	700 list = block_list;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	701 block_list = NULL;
10432 1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	702 free_list = NULL;
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	703 while (list != NULL) {
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	704 bc++;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	705 frem = 0;
10432 1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	706 for (i = 0, p = &list->objects[0];
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	707 i < N_FLOATOBJECTS;
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	708 i++, p++) {
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	709 if (PyFloat_Check(p) && p->ob_refcnt != 0)
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	710 frem++;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	711 }
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	712 next = list->next;
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	713 if (frem) {
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	714 list->next = block_list;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	715 block_list = list;
10432 1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	716 for (i = 0, p = &list->objects[0];
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	717 i < N_FLOATOBJECTS;
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	718 i++, p++) {
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	719 if (!PyFloat_Check(p) \|\| p->ob_refcnt == 0) {
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	720 p->ob_type = (struct _typeobject *)
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	721 free_list;
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	722 free_list = p;
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	723 }
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	724 }
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	725 }
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	726 else {
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 12248 diff changeset	727 PyMem_FREE(list); /* XXX PyObject_FREE ??? */
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	728 bf++;
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	729 }
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	730 fsum += frem;
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	731 list = next;
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	732 }
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	733 if (!Py_VerboseFlag)
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	734 return;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	735 fprintf(stderr, "# cleanup floats");
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	736 if (!fsum) {
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	737 fprintf(stderr, "\n");
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	738 }
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	739 else {
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	740 fprintf(stderr,
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	741 ": %d unfreed float%s in %d out of %d block%s\n",
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	742 fsum, fsum == 1 ? "" : "s",
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	743 bc - bf, bc, bc == 1 ? "" : "s");
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	744 }
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	745 if (Py_VerboseFlag > 1) {
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	746 list = block_list;
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	747 while (list != NULL) {
10432 1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	748 for (i = 0, p = &list->objects[0];
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	749 i < N_FLOATOBJECTS;
1cc5d20d2ed8 Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if Guido van Rossum <guido@python.org> parents: 10391 diff changeset	750 i++, p++) {
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	751 if (PyFloat_Check(p) && p->ob_refcnt != 0) {
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	752 char buf[100];
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	753 PyFloat_AsString(buf, p);
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	754 fprintf(stderr,
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 13141 diff changeset	755 "# <float at %p, refcnt=%d, val=%s>\n",
ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 13141 diff changeset	756 p, p->ob_refcnt, buf);
10391 7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	757 }
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	758 }
7b810aa35b5c Vladimir has restructured his code somewhat so that the blocks are now Guido van Rossum <guido@python.org> parents: 10382 diff changeset	759 list = list->next;
10382 e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	760 }
e2a08a81e56f OK, try again. Vladimir gave me a fix for the alignment bus error, Guido van Rossum <guido@python.org> parents: 10375 diff changeset	761 }
5936 80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	762 }

Mercurial > cpython-lru_cache-weakref

annotate Objects/floatobject.c @ 17581:c1937faabb23 2.1