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

annotate Objects/floatobject.c @ 6719:faebc1940432 legacy-trunk

Understand -Xlinker option.

author	Guido van Rossum <guido@python.org>
date	Tue, 02 Dec 1997 20:38:11 +0000
parents	25505e563b37
children	48141da518df

rev	line source
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	1 /***********************************************************
2059 866c81068dbd Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2053 diff changeset	2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
866c81068dbd Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2053 diff changeset	3 The Netherlands.
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	4
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	5 All Rights Reserved
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	6
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	7 Permission to use, copy, modify, and distribute this software and its
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	8 documentation for any purpose and without fee is hereby granted,
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	9 provided that the above copyright notice appear in all copies and that
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	10 both that copyright notice and this permission notice appear in
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	11 supporting documentation, and that the names of Stichting Mathematisch
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	12 Centrum or CWI or Corporation for National Research Initiatives or
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	13 CNRI not be used in advertising or publicity pertaining to
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	14 distribution of the software without specific, written prior
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	15 permission.
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	16
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	17 While CWI is the initial source for this software, a modified version
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	18 is made available by the Corporation for National Research Initiatives
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	19 (CNRI) at the Internet address ftp://ftp.python.org.
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	20
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4282 diff changeset	28 PERFORMANCE OF THIS SOFTWARE.
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	29
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	30 ******************************************************************/
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 91 diff changeset	31
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	32 /* Float object implementation */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	33
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	34 /* 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	35 for any kind of float exception without losing portability. */
82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	36
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	37 #include "Python.h"
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	38
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 60 diff changeset	39 #include <ctype.h>
2433 6cbd2830b5a2 for MPW __SC__ compiler Guido van Rossum <guido@python.org> parents: 2327 diff changeset	40 #include "mymath.h"
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	41
1271 2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	42 #ifdef i860
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	43 /* 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	44 #undef HUGE_VAL
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	45 #endif
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	46
3704 17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	47 #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	48 #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	49 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	50 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	51 #endif
17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	52
17030515f623 Different logic for defining CHECK(); 16-bit MSC specific define. Guido van Rossum <guido@python.org> parents: 3608 diff changeset	53 #ifndef CHECK
496 0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	54 #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	55 #endif
0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	56
1908 0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	57 #ifdef HAVE_LIMITS_H
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	58 #include <limits.h>
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	59 #endif
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	60
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	61 #ifndef LONG_MAX
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	62 #define LONG_MAX 0X7FFFFFFFL
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	63 #endif
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	64
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	65 #ifndef LONG_MIN
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	66 #define LONG_MIN (-LONG_MAX-1)
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	67 #endif
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	68
2327 43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	69 #ifdef __NeXT__
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	70 #ifdef __sparc__
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	71 /*
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	72 * This works around a bug in the NS/Sparc 3.3 pre-release
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	73 * limits.h header file.
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	74 * 10-Feb-1995 bwarsaw@cnri.reston.va.us
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	75 */
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	76 #undef LONG_MIN
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	77 #define LONG_MIN (-LONG_MAX-1)
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	78 #endif
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	79 #endif
43f9e7549c70 NeXT/Sparc 3.3 fix Guido van Rossum <guido@python.org> parents: 2308 diff changeset	80
2433 6cbd2830b5a2 for MPW __SC__ compiler Guido van Rossum <guido@python.org> parents: 2327 diff changeset	81 #if !defined(__STDC__) && !defined(macintosh)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	82 extern double fmod Py_PROTO((double, double));
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	83 extern double pow Py_PROTO((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	84 #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	85
6537 25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	86 #ifdef sun
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	87 /* 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	88 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	89 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	90 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	91 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	92 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	93 };
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	94 #endif
25505e563b37 Hack suggested by Matthias Klose to pull in all relevant entry points Guido van Rossum <guido@python.org> parents: 5936 diff changeset	95
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	96 /* 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	97 static PyFloatObject *free_list = NULL;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	98 #define BLOCK_SIZE 1000 /* 1K less typical malloc overhead */
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	99 #define N_FLOATOBJECTS (BLOCK_SIZE / sizeof(PyFloatObject))
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	100
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	101 static PyFloatObject *
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	102 fill_free_list()
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	103 {
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	104 PyFloatObject p, q;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	105 p = PyMem_NEW(PyFloatObject, N_FLOATOBJECTS);
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	106 if (p == NULL)
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	107 return (PyFloatObject *)PyErr_NoMemory();
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	108 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	109 while (--q > p)
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	110 (PyFloatObject *)q = q-1;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	111 (PyFloatObject *)q = NULL;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	112 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	113 }
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	114
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	115 PyObject *
2433 6cbd2830b5a2 for MPW __SC__ compiler Guido van Rossum <guido@python.org> parents: 2327 diff changeset	116 #ifdef __SC__
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	117 PyFloat_FromDouble(double fval)
2433 6cbd2830b5a2 for MPW __SC__ compiler Guido van Rossum <guido@python.org> parents: 2327 diff changeset	118 #else
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	119 PyFloat_FromDouble(fval)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	120 double fval;
2433 6cbd2830b5a2 for MPW __SC__ compiler Guido van Rossum <guido@python.org> parents: 2327 diff changeset	121 #endif
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	122 {
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	123 register PyFloatObject *op;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	124 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	125 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	126 return NULL;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	127 }
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	128 op = free_list;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	129 free_list = (PyFloatObject *)free_list;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	130 op->ob_type = &PyFloat_Type;
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	131 op->ob_fval = fval;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	132 _Py_NewReference(op);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	133 return (PyObject *) op;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	134 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	135
1313 6ee380349c84 * Added gmtime/localtime/mktime and SYSV timezone globals to timemodule.c. Guido van Rossum <guido@python.org> parents: 1271 diff changeset	136 static void
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	137 float_dealloc(op)
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	138 PyFloatObject *op;
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	139 {
5504 c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	140 (PyFloatObject *)op = free_list;
c88b9b868995 Faster floating point allocator, same idea as the int allocator. Guido van Rossum <guido@python.org> parents: 5396 diff changeset	141 free_list = op;
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	142 }
c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	143
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	144 double
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	145 PyFloat_AsDouble(op)
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	146 PyObject *op;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	147 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	148 PyNumberMethods *nb;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	149 PyFloatObject *fo;
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	150 double val;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	151
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	152 if (op && PyFloat_Check(op))
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	153 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	154
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	155 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	156 nb->nb_float == NULL) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	157 PyErr_BadArgument();
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	158 return -1;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	159 }
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	160
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	161 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	162 if (fo == NULL)
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	163 return -1;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	164 if (!PyFloat_Check(fo)) {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	165 PyErr_SetString(PyExc_TypeError,
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	166 "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	167 return -1;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	168 }
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	169
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	170 val = PyFloat_AS_DOUBLE(fo);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	171 Py_DECREF(fo);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	172
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	173 return val;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	174 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	175
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	176 /* Methods */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	177
268 0fe2471166f0 Export float_buf_repr() interface, for marshalling of floats. Guido van Rossum <guido@python.org> parents: 249 diff changeset	178 void
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	179 PyFloat_AsString(buf, v)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	180 char *buf;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	181 PyFloatObject *v;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	182 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	183 register char *cp;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	184 /* Subroutine for float_repr and float_print.
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	185 We want float numbers to be recognizable as such,
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	186 i.e., they should contain a decimal point or an exponent.
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	187 However, %g may print the number as an integer;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	188 in such cases, we append ".0" to the string. */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	189 sprintf(buf, "%.12g", v->ob_fval);
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	190 cp = buf;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	191 if (*cp == '-')
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	192 cp++;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	193 for (; *cp != '\0'; cp++) {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	194 /* Any non-digit means it's not an integer;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	195 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	196 if (!isdigit(Py_CHARMASK(*cp)))
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	197 break;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	198 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	199 if (*cp == '\0') {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	200 *cp++ = '.';
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	201 *cp++ = '0';
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	202 *cp++ = '\0';
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	203 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	204 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	205
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	206 /* ARGSUSED */
284 6ac402023cac printobject now returns an error code Guido van Rossum <guido@python.org> parents: 268 diff changeset	207 static int
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	208 float_print(v, fp, flags)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	209 PyFloatObject *v;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	210 FILE *fp;
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	211 int flags; /* Not used but required by interface */
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	212 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	213 char buf[100];
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	214 PyFloat_AsString(buf, v);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	215 fputs(buf, fp);
284 6ac402023cac printobject now returns an error code Guido van Rossum <guido@python.org> parents: 268 diff changeset	216 return 0;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	217 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	218
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	219 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	220 float_repr(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	221 PyFloatObject *v;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	222 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	223 char buf[100];
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	224 PyFloat_AsString(buf, v);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	225 return PyString_FromString(buf);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	226 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	227
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	228 static int
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	229 float_compare(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	230 PyFloatObject v, w;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	231 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	232 double i = v->ob_fval;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	233 double j = w->ob_fval;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	234 return (i < j) ? -1 : (i > j) ? 1 : 0;
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
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	237 static long
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	238 float_hash(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	239 PyFloatObject *v;
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	240 {
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	241 double intpart, fractpart;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	242 int expo;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	243 long x;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	244 /* This is designed so that Python numbers with the same
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	245 value hash to the same value, otherwise comparisons
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	246 of mapping keys will turn out weird */
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	247
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	248 #ifdef MPW /* MPW C modf expects pointer to extended as second argument */
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	249 {
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	250 extended e;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	251 fractpart = modf(v->ob_fval, &e);
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	252 intpart = e;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	253 }
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	254 #else
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	255 fractpart = modf(v->ob_fval, &intpart);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	256 #endif
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	257
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	258 if (fractpart == 0.0) {
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	259 if (intpart > 0x7fffffffL \|\| -intpart > 0x7fffffffL) {
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	260 /* Convert to long int and use its hash... */
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	261 PyObject *w = PyLong_FromDouble(v->ob_fval);
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	262 if (w == NULL)
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	263 return -1;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	264 x = PyObject_Hash(w);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	265 Py_DECREF(w);
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	266 return x;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	267 }
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	268 x = (long)intpart;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	269 }
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	270 else {
4933 b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	271 /* Note -- if you change this code, also change the copy
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	272 in complexobject.c */
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	273 long hipart;
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	274 fractpart = frexp(fractpart, &expo);
4933 b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	275 fractpart = fractpart * 2147483648.0; /* 2*31 /
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	276 hipart = (long)fractpart; /* Take the top 32 bits */
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	277 fractpart = (fractpart - (double)hipart) * 2147483648.0;
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	278 /* Get the next 32 bits */
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	279 x = hipart + (long)fractpart + (long)intpart + (expo << 15);
b56bc25aec85 New, better hash for floating point and complex Guido van Rossum <guido@python.org> parents: 4503 diff changeset	280 /* Combine everything */
1257 1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	281 }
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	282 if (x == -1)
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	283 x = -2;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	284 return x;
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	285 }
1cabc2b6c970 * Changed all copyright messages to include 1993. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	286
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	287 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	288 float_add(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	289 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	290 PyFloatObject *w;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	291 {
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	292 double result;
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	293 PyFPE_START_PROTECT("add", return 0)
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	294 result = v->ob_fval + w->ob_fval;
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	295 PyFPE_END_PROTECT(result)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	296 return PyFloat_FromDouble(result);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	297 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	298
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	299 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	300 float_sub(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	301 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	302 PyFloatObject *w;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	303 {
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	304 double result;
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	305 PyFPE_START_PROTECT("subtract", return 0)
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	306 result = v->ob_fval - w->ob_fval;
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	307 PyFPE_END_PROTECT(result)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	308 return PyFloat_FromDouble(result);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	309 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	310
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	311 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	312 float_mul(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	313 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	314 PyFloatObject *w;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	315 {
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	316 double result;
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	317
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	318 PyFPE_START_PROTECT("multiply", return 0)
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	319 result = v->ob_fval * w->ob_fval;
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	320 PyFPE_END_PROTECT(result)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	321 return PyFloat_FromDouble(result);
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 *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	325 float_div(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	326 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	327 PyFloatObject *w;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	328 {
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	329 double result;
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	330 if (w->ob_fval == 0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	331 PyErr_SetString(PyExc_ZeroDivisionError, "float division");
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	332 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	333 }
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	334 PyFPE_START_PROTECT("divide", return 0)
002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	335 result = v->ob_fval / w->ob_fval;
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	336 PyFPE_END_PROTECT(result)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	337 return PyFloat_FromDouble(result);
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
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	340 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	341 float_rem(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	342 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	343 PyFloatObject *w;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	344 {
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	345 double vx, wx;
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	346 double /* div, */ mod;
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	347 wx = w->ob_fval;
0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	348 if (wx == 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	349 PyErr_SetString(PyExc_ZeroDivisionError, "float modulo");
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	350 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	351 }
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	352 PyFPE_START_PROTECT("modulo", return 0)
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	353 vx = v->ob_fval;
0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	354 mod = fmod(vx, wx);
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	355 /* div = (vx - mod) / wx; */
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	356 if (wx*mod < 0) {
0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	357 mod += wx;
745 c7b23cc8cded answer lint's complaints Guido van Rossum <guido@python.org> parents: 632 diff changeset	358 /* div -= 1.0; */
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	359 }
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	360 PyFPE_END_PROTECT(mod)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	361 return PyFloat_FromDouble(mod);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	362 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	363
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	364 static PyObject *
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	365 float_divmod(v, w)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	366 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	367 PyFloatObject *w;
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	368 {
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	369 double vx, wx;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	370 double div, mod;
632 0c1938f2e0c0 Get rid of redundant type checks. Guido van Rossum <guido@python.org> parents: 496 diff changeset	371 wx = w->ob_fval;
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	372 if (wx == 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	373 PyErr_SetString(PyExc_ZeroDivisionError, "float divmod()");
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	374 return NULL;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	375 }
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	376 PyFPE_START_PROTECT("divmod", return 0)
391 caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	377 vx = v->ob_fval;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	378 mod = fmod(vx, wx);
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	379 div = (vx - mod) / wx;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	380 if (wx*mod < 0) {
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	381 mod += wx;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	382 div -= 1.0;
caf8466dcc9c Finally implemented divmod(). Guido van Rossum <guido@python.org> parents: 284 diff changeset	383 }
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	384 PyFPE_END_PROTECT(div)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	385 return Py_BuildValue("(dd)", div, mod);
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	386 }
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	387
3608 8573e65fa948 make some things static Guido van Rossum <guido@python.org> parents: 3329 diff changeset	388 static double powu(x, n)
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	389 double x;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	390 long n;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	391 {
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	392 double r = 1.;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	393 double p = x;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	394 long mask = 1;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	395 while (mask > 0 && n >= mask) {
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	396 if (n & mask)
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	397 r *= p;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	398 mask <<= 1;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	399 p *= p;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	400 }
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	401 return r;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	402 }
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	403
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	404 static PyObject *
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	405 float_pow(v, w, z)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	406 PyFloatObject *v;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	407 PyObject *w;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	408 PyFloatObject *z;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	409 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	410 double iv, iw, ix;
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	411 long intw;
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	412 /* 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	413 * 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	414 * 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	415 * [AMK]
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	416 */
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	417 iv = v->ob_fval;
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	418 iw = ((PyFloatObject *)w)->ob_fval;
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	419 intw = (long)iw;
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	420 if (iw == intw && -10000 < intw && intw < 10000) {
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	421 /* Sort out special cases here instead of relying on pow() */
3984 0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	422 if (intw == 0) { /* x0 is 1, even 00 */
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	423 PyFPE_START_PROTECT("pow", return 0)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	424 if ((PyObject *)z!=Py_None) {
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	425 ix=fmod(1.0, z->ob_fval);
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	426 if (ix!=0 && z->ob_fval<0) ix+=z->ob_fval;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	427 }
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	428 else ix=1.0;
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	429 PyFPE_END_PROTECT(ix)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	430 return PyFloat_FromDouble(ix);
249 bab1f5494b8e Fix special cases in pow() Guido van Rossum <guido@python.org> parents: 239 diff changeset	431 }
3984 0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	432 errno = 0;
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	433 PyFPE_START_PROTECT("pow", return 0)
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	434 if (intw > 0)
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	435 ix = powu(iv, intw);
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	436 else
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	437 ix = 1./powu(iv, -intw);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	438 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	439 }
0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	440 else {
0613f17dcfd8 Correct wrong calculation of pow(0.0, 0.0, negative_number) Guido van Rossum <guido@python.org> parents: 3704 diff changeset	441 /* Sort out special cases here instead of relying on pow() */
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	442 if (iv == 0.0) {
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	443 if (iw < 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	444 PyErr_SetString(PyExc_ValueError,
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	445 "0.0 to a negative power");
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	446 return NULL;
67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	447 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	448 return PyFloat_FromDouble(0.0);
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	449 }
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	450 if (iv < 0.0) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	451 PyErr_SetString(PyExc_ValueError,
4007 1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	452 "negative number to a float power");
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	453 return NULL;
1a0aa986f6fa Test for negative # to the nonintegral float power here. Guido van Rossum <guido@python.org> parents: 3984 diff changeset	454 }
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	455 errno = 0;
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	456 PyFPE_START_PROTECT("pow", return 0)
3329 67d347c32fff better power implementation Guido van Rossum <guido@python.org> parents: 2433 diff changeset	457 ix = pow(iv, iw);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	458 PyFPE_END_PROTECT(ix)
249 bab1f5494b8e Fix special cases in pow() Guido van Rossum <guido@python.org> parents: 239 diff changeset	459 }
496 0ac392b7f76e Explicitly check for weird values after calling pow(). Guido van Rossum <guido@python.org> parents: 470 diff changeset	460 CHECK(ix);
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	461 if (errno != 0) {
82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	462 /* 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	463 PyErr_SetFromErrno(PyExc_OverflowError);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	464 return NULL;
27 82c7bab78bb1 New errors. Guido van Rossum <guido@python.org> parents: 6 diff changeset	465 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	466 if ((PyObject *)z!=Py_None) {
5118 002865af55e5 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4933 diff changeset	467 PyFPE_START_PROTECT("pow", return 0)
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	468 ix=fmod(ix, z->ob_fval); /* XXX To Be Rewritten */
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	469 if ( ix!=0 &&
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	470 ((iv<0 && z->ob_fval>0) \|\| (iv>0 && z->ob_fval<0) )) {
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	471 ix+=z->ob_fval;
17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	472 }
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5118 diff changeset	473 PyFPE_END_PROTECT(ix)
1775 17c80a952914 New patches by Andrew to fix various problems Guido van Rossum <guido@python.org> parents: 1746 diff changeset	474 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	475 return PyFloat_FromDouble(ix);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	476 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	477
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	478 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	479 float_neg(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	480 PyFloatObject *v;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	481 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	482 return PyFloat_FromDouble(-v->ob_fval);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	483 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	484
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	485 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	486 float_pos(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	487 PyFloatObject *v;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	488 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	489 Py_INCREF(v);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	490 return (PyObject *)v;
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	491 }
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	492
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	493 static PyObject *
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	494 float_abs(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	495 PyFloatObject *v;
227 7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	496 {
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	497 if (v->ob_fval < 0)
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	498 return float_neg(v);
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	499 else
7ec6058b539b Added (dummy) divmod and (functional) abs. Guido van Rossum <guido@python.org> parents: 145 diff changeset	500 return float_pos(v);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	501 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	502
239 fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	503 static int
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	504 float_nonzero(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	505 PyFloatObject *v;
239 fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	506 {
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	507 return v->ob_fval != 0.0;
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	508 }
fda973f2a512 Added nonzero test Guido van Rossum <guido@python.org> parents: 227 diff changeset	509
1313 6ee380349c84 * Added gmtime/localtime/mktime and SYSV timezone globals to timemodule.c. Guido van Rossum <guido@python.org> parents: 1271 diff changeset	510 static int
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	511 float_coerce(pv, pw)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	512 PyObject **pv;
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	513 PyObject **pw;
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	514 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	515 if (PyInt_Check(*pw)) {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	516 long x = PyInt_AsLong(*pw);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	517 *pw = PyFloat_FromDouble((double)x);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	518 Py_INCREF(*pv);
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	519 return 0;
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	520 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	521 else if (PyLong_Check(*pw)) {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	522 pw = PyFloat_FromDouble(PyLong_AsDouble(pw));
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	523 Py_INCREF(*pv);
955 03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	524 return 0;
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	525 }
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	526 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	527 }
03de67080c95 * classobject.[ch], {float,long,int}object.c, bltinmodule.c: Guido van Rossum <guido@python.org> parents: 795 diff changeset	528
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	529 static PyObject *
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	530 float_int(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	531 PyObject *v;
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	532 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	533 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	534 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	535 : (x = floor(x)) > (double)LONG_MAX) {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	536 PyErr_SetString(PyExc_OverflowError,
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	537 "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	538 return NULL;
0437738279a8 * Include/classobject.h, Objects/classobject.c, Python/ceval.c: Guido van Rossum <guido@python.org> parents: 1775 diff changeset	539 }
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	540 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	541 }
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	542
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	543 static PyObject *
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	544 float_long(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	545 PyObject *v;
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	546 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	547 double x = PyFloat_AsDouble(v);
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	548 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	549 }
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	550
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	551 static PyObject *
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	552 float_float(v)
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	553 PyObject *v;
1049 2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	554 {
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	555 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	556 return v;
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	557 }
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	558
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	559
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	560 static PyNumberMethods float_as_number = {
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	561 (binaryfunc)float_add, /nb_add/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	562 (binaryfunc)float_sub, /nb_subtract/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	563 (binaryfunc)float_mul, /nb_multiply/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	564 (binaryfunc)float_div, /nb_divide/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	565 (binaryfunc)float_rem, /nb_remainder/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	566 (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	567 (ternaryfunc)float_pow, /nb_power/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	568 (unaryfunc)float_neg, /nb_negative/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	569 (unaryfunc)float_pos, /nb_positive/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	570 (unaryfunc)float_abs, /nb_absolute/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	571 (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	572 0, /nb_invert/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	573 0, /nb_lshift/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	574 0, /nb_rshift/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	575 0, /nb_and/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	576 0, /nb_xor/
d3d328680328 Added NULL function pointers for shift and mask ops. Guido van Rossum <guido@python.org> parents: 391 diff changeset	577 0, /nb_or/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	578 (coercion)float_coerce, /nb_coerce/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	579 (unaryfunc)float_int, /nb_int/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	580 (unaryfunc)float_long, /nb_long/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	581 (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	582 0, /nb_oct/
2ed511171809 Made builtins int(), long(), float(), oct() and hex() more generic. Guido van Rossum <guido@python.org> parents: 955 diff changeset	583 0, /nb_hex/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	584 };
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	585
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	586 PyTypeObject PyFloat_Type = {
d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	587 PyObject_HEAD_INIT(&PyType_Type)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	588 0,
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	589 "float",
5396 d1447950fa04 Quickly renamed the last directory. Guido van Rossum <guido@python.org> parents: 5197 diff changeset	590 sizeof(PyFloatObject),
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	591 0,
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	592 (destructor)float_dealloc, /tp_dealloc/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	593 (printfunc)float_print, /tp_print/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	594 0, /tp_getattr/
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	595 0, /tp_setattr/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	596 (cmpfunc)float_compare, /tp_compare/
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	597 (reprfunc)float_repr, /tp_repr/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	598 &float_as_number, /tp_as_number/
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	599 0, /tp_as_sequence/
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	600 0, /tp_as_mapping/
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1347 diff changeset	601 (hashfunc)float_hash, /tp_hash/
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	602 };
5936 80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	603
80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	604 void
80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	605 PyFloat_Fini()
80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	606 {
80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	607 /* XXX Alas, the free list is not easily and safely freeable */
80d24364b932 Added _Fini() routines to free up some memory Guido van Rossum <guido@python.org> parents: 5504 diff changeset	608 }

Mercurial > cpython-lru_cache-weakref

annotate Objects/floatobject.c @ 6719:faebc1940432 legacy-trunk