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

annotate Modules/mathmodule.c @ 13255:916fb024ce94 legacy-trunk

Change copyright notice.

author	Guido van Rossum <guido@python.org>
date	Fri, 30 Jun 2000 23:50:40 +0000
parents	2a6dc65c060f
children	87ee82e5c56d

rev	line source
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	1 /***********************************************************
2061 172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2055 diff changeset	2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2055 diff changeset	3 The Netherlands.
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	4
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	5 All Rights Reserved
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	6
13255 916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 12669 diff changeset	7 Copyright (c) 2000, BeOpen.com.
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 12669 diff changeset	8 Copyright (c) 1995-2000, Corporation for National Research Initiatives.
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 12669 diff changeset	9 Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 12669 diff changeset	10 All rights reserved.
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	11
13255 916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 12669 diff changeset	12 See the file "Misc/COPYRIGHT" for information on usage and
916fb024ce94 Change copyright notice. Guido van Rossum <guido@python.org> parents: 12669 diff changeset	13 redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	14
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	15 ******************************************************************/
853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 92 diff changeset	16
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	17 /* Math module -- standard C math library functions, pi and e */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	18
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	19 #include "Python.h"
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	20
2455 b42ab77f2226 include mymath.h Guido van Rossum <guido@python.org> parents: 2213 diff changeset	21 #include "mymath.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: 75 diff changeset	22
3597 e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	23 #ifndef _MSC_VER
2125 bd061dc30842 rearrange declarations somewhat Guido van Rossum <guido@python.org> parents: 2061 diff changeset	24 #ifndef __STDC__
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	25 extern double fmod Py_PROTO((double, double));
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	26 extern double frexp Py_PROTO((double, int *));
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	27 extern double ldexp Py_PROTO((double, int));
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	28 extern double modf Py_PROTO((double, double *));
3597 e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	29 #endif /* __STDC__ */
e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	30 #endif /* _MSC_VER */
e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	31
2125 bd061dc30842 rearrange declarations somewhat Guido van Rossum <guido@python.org> parents: 2061 diff changeset	32
1271 2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	33 #ifdef i860
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	34 /* 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: 1252 diff changeset	35 #undef HUGE_VAL
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	36 #endif
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	37
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	38 #ifdef HUGE_VAL
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	39 #define CHECK(x) if (errno != 0) ; \
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	40 else if (-HUGE_VAL <= (x) && (x) <= HUGE_VAL) ; \
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	41 else errno = ERANGE
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	42 #else
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	43 #define CHECK(x) /* Don't know how to check */
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	44 #endif
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	45
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	46 static PyObject *
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	47 math_error()
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	48 {
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	49 if (errno == EDOM)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	50 PyErr_SetString(PyExc_ValueError, "math domain error");
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	51 else if (errno == ERANGE)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	52 PyErr_SetString(PyExc_OverflowError, "math range error");
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	53 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	54 /* Unexpected math error */
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	55 PyErr_SetFromErrno(PyExc_ValueError);
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	56 return NULL;
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	57 }
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	58
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	59 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	60 math_1(args, func)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	61 PyObject *args;
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	62 double (*func) Py_FPROTO((double));
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	63 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	64 double x;
4780 abef5006f84b Removed references to getdoublearg and get2doublearg rename macros and Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4766 diff changeset	65 if (! PyArg_Parse(args, "d", &x))
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	66 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	67 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4780 diff changeset	68 PyFPE_START_PROTECT("in math_1", return 0)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	69 x = (*func)(x);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	70 PyFPE_END_PROTECT(x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	71 CHECK(x);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	72 if (errno != 0)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	73 return math_error();
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	74 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	75 return PyFloat_FromDouble(x);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	76 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	77
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	78 static PyObject *
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	79 math_2(args, func)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	80 PyObject *args;
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	81 double (*func) Py_FPROTO((double, double));
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	82 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	83 double x, y;
4780 abef5006f84b Removed references to getdoublearg and get2doublearg rename macros and Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4766 diff changeset	84 if (! PyArg_Parse(args, "(dd)", &x, &y))
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	85 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	86 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4780 diff changeset	87 PyFPE_START_PROTECT("in math_2", return 0)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	88 x = (*func)(x, y);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	89 PyFPE_END_PROTECT(x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	90 CHECK(x);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	91 if (errno != 0)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	92 return math_error();
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	93 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	94 return PyFloat_FromDouble(x);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	95 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	96
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	97 #define FUNC1(stubname, func, docstring_name, docstring) \
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	98 static PyObject * stubname(self, args) PyObject self, args; { \
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	99 return math_1(args, func); \
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	100 }\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	101 static char docstring_name [] = docstring;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	102
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	103 #define FUNC2(stubname, func, docstring_name, docstring) \
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	104 static PyObject * stubname(self, args) PyObject self, args; { \
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	105 return math_2(args, func); \
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	106 }\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	107 static char docstring_name [] = docstring;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	108
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	109 FUNC1(math_acos, acos, math_acos_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	110 "acos(x)\n\nReturn the arc cosine of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	111 FUNC1(math_asin, asin, math_asin_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	112 "asin(x)\n\nReturn the arc sine of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	113 FUNC1(math_atan, atan, math_atan_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	114 "atan(x)\n\nReturn the arc tangent of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	115 FUNC2(math_atan2, atan2, math_atan2_doc,
9608 5a36bad1d248 Correctly document atan2. Guido van Rossum <guido@python.org> parents: 9593 diff changeset	116 "atan2(y, x)\n\nReturn atan(y/x).")
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	117 FUNC1(math_ceil, ceil, math_ceil_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	118 "ceil(x)\n\nReturn the ceiling of x as a real.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	119 FUNC1(math_cos, cos, math_cos_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	120 "cos(x)\n\nReturn the cosine of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	121 FUNC1(math_cosh, cosh, math_cosh_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	122 "cosh(x)\n\nReturn the hyperbolic cosine of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	123 FUNC1(math_exp, exp, math_exp_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	124 "exp(x)\n\nReturn e raised to the power of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	125 FUNC1(math_fabs, fabs, math_fabs_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	126 "fabs(x)\n\nReturn the absolute value of the real x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	127 FUNC1(math_floor, floor, math_floor_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	128 "floor(x)\n\nReturn the floor of x as a real.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	129 FUNC2(math_fmod, fmod, math_fmod_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	130 "fmod(x,y)\n\nReturn x % y.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	131 FUNC2(math_hypot, hypot, math_hypot_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	132 "hypot(x,y)\n\nReturn the Euclidean distance, sqrt(xx + yy).")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	133 FUNC1(math_log, log, math_log_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	134 "log(x)\n\nReturn the natural logarithm of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	135 FUNC1(math_log10, log10, math_log10_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	136 "log10(x)\n\nReturn the base-10 logarithm of x.")
320 26426c42a162 Add some err_errno calls that were missing Guido van Rossum <guido@python.org> parents: 289 diff changeset	137 #ifdef MPW_3_1 /* This hack is needed for MPW 3.1 but not for 3.2 ... */
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	138 FUNC2(math_pow, power, math_pow_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	139 "power(x,y)\n\nReturn x**y.")
289 c4c278c56e90 Apparently MPW has power() instead of pow(). Guido van Rossum <guido@python.org> parents: 168 diff changeset	140 #else
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	141 FUNC2(math_pow, pow, math_pow_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	142 "pow(x,y)\n\nReturn x**y.")
289 c4c278c56e90 Apparently MPW has power() instead of pow(). Guido van Rossum <guido@python.org> parents: 168 diff changeset	143 #endif
12669 2a6dc65c060f The addition of rint() (by Peter Schneider-Kamp; I forgot to mention Guido van Rossum <guido@python.org> parents: 12663 diff changeset	144 #ifdef HAVE_RINT
12663 1ea8cf885f7b Added math.rint() -- round according to current IEEE754 mode Guido van Rossum <guido@python.org> parents: 12618 diff changeset	145 FUNC1(math_rint, rint, math_rint_doc,
1ea8cf885f7b Added math.rint() -- round according to current IEEE754 mode Guido van Rossum <guido@python.org> parents: 12618 diff changeset	146 "rint(x)\n\nReturn the integer nearest to x as a real.")
12669 2a6dc65c060f The addition of rint() (by Peter Schneider-Kamp; I forgot to mention Guido van Rossum <guido@python.org> parents: 12663 diff changeset	147 #endif
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	148 FUNC1(math_sin, sin, math_sin_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	149 "sin(x)\n\nReturn the sine of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	150 FUNC1(math_sinh, sinh, math_sinh_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	151 "sinh(x)\n\nReturn the hyperbolic sine of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	152 FUNC1(math_sqrt, sqrt, math_sqrt_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	153 "sqrt(x)\n\nReturn the square root of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	154 FUNC1(math_tan, tan, math_tan_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	155 "tan(x)\n\nReturn the tangent of x.")
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	156 FUNC1(math_tanh, tanh, math_tanh_doc,
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	157 "tanh(x)\n\nReturn the hyperbolic tangent of x.")
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	158
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	159
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	160 static PyObject *
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	161 math_frexp(self, args)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	162 PyObject *self;
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	163 PyObject *args;
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	164 {
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	165 double x;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	166 int i;
4780 abef5006f84b Removed references to getdoublearg and get2doublearg rename macros and Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4766 diff changeset	167 if (! PyArg_Parse(args, "d", &x))
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	168 return NULL;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	169 errno = 0;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	170 x = frexp(x, &i);
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	171 CHECK(x);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	172 if (errno != 0)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	173 return math_error();
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	174 return Py_BuildValue("(di)", x, i);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	175 }
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	176
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	177 static char math_frexp_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	178 "frexp(x)\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	179 \n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	180 Return the matissa and exponent for x. The mantissa is positive.";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	181
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	182
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	183 static PyObject *
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	184 math_ldexp(self, args)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	185 PyObject *self;
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	186 PyObject *args;
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	187 {
12618 cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	188 double x;
cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	189 int exp;
cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	190 if (! PyArg_Parse(args, "(di)", &x, &exp))
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	191 return NULL;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	192 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4780 diff changeset	193 PyFPE_START_PROTECT("ldexp", return 0)
12618 cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	194 x = ldexp(x, exp);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	195 PyFPE_END_PROTECT(x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	196 CHECK(x);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	197 if (errno != 0)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	198 return math_error();
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	199 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	200 return PyFloat_FromDouble(x);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	201 }
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	202
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	203 static char math_ldexp_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	204 "ldexp_doc(x, i)\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	205 \n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	206 Return x * (2**i).";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	207
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	208
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	209 static PyObject *
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	210 math_modf(self, args)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	211 PyObject *self;
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	212 PyObject *args;
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	213 {
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	214 double x, y;
4780 abef5006f84b Removed references to getdoublearg and get2doublearg rename macros and Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4766 diff changeset	215 if (! PyArg_Parse(args, "d", &x))
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	216 return NULL;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	217 errno = 0;
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	218 #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: 1319 diff changeset	219 {
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	220 extended e;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	221 x = modf(x, &e);
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	222 y = e;
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	223 }
1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	224 #else
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	225 x = modf(x, &y);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	226 #endif
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	227 CHECK(x);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	228 if (errno != 0)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	229 return math_error();
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	230 return Py_BuildValue("(dd)", x, y);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	231 }
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	232
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	233 static char math_modf_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	234 "modf(x)\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	235 \n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	236 Return the fractional and integer parts of x. Both results carry the sign\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	237 of x. The integer part is returned as a real.";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	238
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	239
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	240 static PyMethodDef math_methods[] = {
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	241 {"acos", math_acos, 0, math_acos_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	242 {"asin", math_asin, 0, math_asin_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	243 {"atan", math_atan, 0, math_atan_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	244 {"atan2", math_atan2, 0, math_atan2_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	245 {"ceil", math_ceil, 0, math_ceil_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	246 {"cos", math_cos, 0, math_cos_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	247 {"cosh", math_cosh, 0, math_cosh_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	248 {"exp", math_exp, 0, math_exp_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	249 {"fabs", math_fabs, 0, math_fabs_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	250 {"floor", math_floor, 0, math_floor_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	251 {"fmod", math_fmod, 0, math_fmod_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	252 {"frexp", math_frexp, 0, math_frexp_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	253 {"hypot", math_hypot, 0, math_hypot_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	254 {"ldexp", math_ldexp, 0, math_ldexp_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	255 {"log", math_log, 0, math_log_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	256 {"log10", math_log10, 0, math_log10_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	257 {"modf", math_modf, 0, math_modf_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	258 {"pow", math_pow, 0, math_pow_doc},
12669 2a6dc65c060f The addition of rint() (by Peter Schneider-Kamp; I forgot to mention Guido van Rossum <guido@python.org> parents: 12663 diff changeset	259 #ifdef HAVE_RINT
12663 1ea8cf885f7b Added math.rint() -- round according to current IEEE754 mode Guido van Rossum <guido@python.org> parents: 12618 diff changeset	260 {"rint", math_rint, 0, math_rint_doc},
12669 2a6dc65c060f The addition of rint() (by Peter Schneider-Kamp; I forgot to mention Guido van Rossum <guido@python.org> parents: 12663 diff changeset	261 #endif
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	262 {"sin", math_sin, 0, math_sin_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	263 {"sinh", math_sinh, 0, math_sinh_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	264 {"sqrt", math_sqrt, 0, math_sqrt_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	265 {"tan", math_tan, 0, math_tan_doc},
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	266 {"tanh", math_tanh, 0, math_tanh_doc},
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	267 {NULL, NULL} /* sentinel */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	268 };
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	269
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	270
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	271 static char module_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	272 "This module is always available. It provides access to the\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	273 mathematical functions defined by the C standard.";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	274
9588 38023a425e48 Add DL_EXPORT() to all modules that could possibly be used Guido van Rossum <guido@python.org> parents: 5554 diff changeset	275 DL_EXPORT(void)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	276 initmath()
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	277 {
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	278 PyObject m, d, *v;
42 4835c2d38b84 Take out duplication of code in initmodule(). Guido van Rossum <guido@python.org> parents: 6 diff changeset	279
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	280 m = Py_InitModule3("math", math_methods, module_doc);
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	281 d = PyModule_GetDict(m);
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	282
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	283 if (!(v = PyFloat_FromDouble(atan(1.0) * 4.0)))
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	284 goto finally;
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	285 if (PyDict_SetItemString(d, "pi", v) < 0)
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	286 goto finally;
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	287 Py_DECREF(v);
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	288
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	289 if (!(v = PyFloat_FromDouble(exp(1.0))))
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	290 goto finally;
4765 f8b36c0ec114 Correct 1-char typo / syntax error. Guido van Rossum <guido@python.org> parents: 4752 diff changeset	291 if (PyDict_SetItemString(d, "e", v) < 0)
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	292 goto finally;
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	293 Py_DECREF(v);
4766 9604d6784675 Correct another mistake (initmath() always fell through to fatal error). Guido van Rossum <guido@python.org> parents: 4765 diff changeset	294 return;
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	295
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	296 finally:
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	297 Py_FatalError("can't initialize math module");
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	298 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/mathmodule.c @ 13255:916fb024ce94 legacy-trunk