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

annotate Modules/cmathmodule.c @ 19283:b865cd5c1925 legacy-trunk

Added comments before recently added/assigned slots in the type object, so the backward compatibility issues will be easier to understand. I only added comments indicating additions and assignments back to Python 2.0.

author	Fred Drake <fdrake@acm.org>
date	Wed, 15 Aug 2001 18:32:33 +0000
parents	844fde600a61
children	2e6da2dd2ab8

rev	line source
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	1 /* Complex math module */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	2
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	3 /* much code borrowed from mathmodule.c */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	4
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	5 #include "Python.h"
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	6
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	7 #ifdef i860
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	8 /* Cray APP has bogus definition of HUGE_VAL in <math.h> */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	9 #undef HUGE_VAL
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	10 #endif
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	11
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	12 #ifdef HUGE_VAL
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	13 #define CHECK(x) if (errno != 0) ; \
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	14 else if (-HUGE_VAL <= (x) && (x) <= HUGE_VAL) ; \
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	15 else errno = ERANGE
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	16 #else
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	17 #define CHECK(x) /* Don't know how to check */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	18 #endif
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	19
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	20 #ifndef M_PI
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	21 #define M_PI (3.141592653589793239)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	22 #endif
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	23
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	24 /* First, the C functions that do the real work */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	25
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	26 /* constants */
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	27 static Py_complex c_one = {1., 0.};
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	28 static Py_complex c_half = {0.5, 0.};
d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	29 static Py_complex c_i = {0., 1.};
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	30 static Py_complex c_halfi = {0., 0.5};
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	31
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	32 /* forward declarations */
13685 129c9775cc19 Fix typo in previous patch. Thomas Wouters <thomas@python.org> parents: 13684 diff changeset	33 staticforward Py_complex c_log(Py_complex);
129c9775cc19 Fix typo in previous patch. Thomas Wouters <thomas@python.org> parents: 13684 diff changeset	34 staticforward Py_complex c_prodi(Py_complex);
129c9775cc19 Fix typo in previous patch. Thomas Wouters <thomas@python.org> parents: 13684 diff changeset	35 staticforward Py_complex c_sqrt(Py_complex);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	36
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	37
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	38 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	39 c_acos(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	40 {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	41 return c_neg(c_prodi(c_log(c_sum(x,c_prod(c_i,
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	42 c_sqrt(c_diff(c_one,c_prod(x,x))))))));
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	43 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	44
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	45 static char c_acos_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	46 "acos(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	47 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	48 "Return the arc cosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	49
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	50
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	51 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	52 c_acosh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	53 {
13169 b78b996e8ebc Patch by Nadav Horesh to make acosh and asinh better. Guido van Rossum <guido@python.org> parents: 10403 diff changeset	54 Py_complex z;
b78b996e8ebc Patch by Nadav Horesh to make acosh and asinh better. Guido van Rossum <guido@python.org> parents: 10403 diff changeset	55 z = c_sqrt(c_half);
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	56 z = c_log(c_prod(z, c_sum(c_sqrt(c_sum(x,c_one)),
57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	57 c_sqrt(c_diff(x,c_one)))));
13169 b78b996e8ebc Patch by Nadav Horesh to make acosh and asinh better. Guido van Rossum <guido@python.org> parents: 10403 diff changeset	58 return c_sum(z, z);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	59 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	60
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	61 static char c_acosh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	62 "acosh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	63 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	64 "Return the hyperbolic arccosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	65
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	66
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	67 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	68 c_asin(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	69 {
16722 cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	70 /* -i * log[(sqrt(1-x*2) + ix] */
cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	71 const Py_complex squared = c_prod(x, x);
cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	72 const Py_complex sqrt_1_minus_x_sq = c_sqrt(c_diff(c_one, squared));
16738 844fde600a61 asin micro-optimization suggested in email. Tim Peters <tim.peters@gmail.com> parents: 16722 diff changeset	73 return c_neg(c_prodi(c_log(
844fde600a61 asin micro-optimization suggested in email. Tim Peters <tim.peters@gmail.com> parents: 16722 diff changeset	74 c_sum(sqrt_1_minus_x_sq, c_prodi(x))
844fde600a61 asin micro-optimization suggested in email. Tim Peters <tim.peters@gmail.com> parents: 16722 diff changeset	75 ) ) );
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	76 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	77
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	78 static char c_asin_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	79 "asin(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	80 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	81 "Return the arc sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	82
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	83
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	84 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	85 c_asinh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	86 {
9886 fae6d24b897b Jim Ahlstrom patch: Watcom chokes on a long expression in c_asinh(). Guido van Rossum <guido@python.org> parents: 9593 diff changeset	87 Py_complex z;
16722 cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	88 z = c_sqrt(c_half);
cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	89 z = c_log(c_prod(z, c_sum(c_sqrt(c_sum(x, c_i)),
cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	90 c_sqrt(c_diff(x, c_i)))));
cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	91 return c_sum(z, z);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	92 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	93
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	94 static char c_asinh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	95 "asinh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	96 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	97 "Return the hyperbolic arc sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	98
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	99
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	100 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	101 c_atan(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	102 {
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	103 return c_prod(c_halfi,c_log(c_quot(c_sum(c_i,x),c_diff(c_i,x))));
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	104 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	105
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	106 static char c_atan_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	107 "atan(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	108 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	109 "Return the arc tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	110
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	111
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	112 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	113 c_atanh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	114 {
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	115 return c_prod(c_half,c_log(c_quot(c_sum(c_one,x),c_diff(c_one,x))));
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	116 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	117
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	118 static char c_atanh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	119 "atanh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	120 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	121 "Return the hyperbolic arc tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	122
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	123
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	124 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	125 c_cos(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	126 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	127 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	128 r.real = cos(x.real)*cosh(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	129 r.imag = -sin(x.real)*sinh(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	130 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	131 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	132
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	133 static char c_cos_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	134 "cos(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	135 "n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	136 "Return the cosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	137
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	138
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	139 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	140 c_cosh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	141 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	142 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	143 r.real = cos(x.imag)*cosh(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	144 r.imag = sin(x.imag)*sinh(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	145 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	146 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	147
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	148 static char c_cosh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	149 "cosh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	150 "n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	151 "Return the hyperbolic cosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	152
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	153
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	154 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	155 c_exp(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	156 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	157 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	158 double l = exp(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	159 r.real = l*cos(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	160 r.imag = l*sin(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	161 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	162 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	163
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	164 static char c_exp_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	165 "exp(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	166 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	167 "Return the exponential value e**x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	168
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	169
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	170 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	171 c_log(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	172 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	173 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	174 double l = hypot(x.real,x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	175 r.imag = atan2(x.imag, x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	176 r.real = log(l);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	177 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	178 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	179
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	180 static char c_log_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	181 "log(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	182 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	183 "Return the natural logarithm of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	184
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	185
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	186 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	187 c_log10(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	188 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	189 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	190 double l = hypot(x.real,x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	191 r.imag = atan2(x.imag, x.real)/log(10.);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	192 r.real = log10(l);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	193 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	194 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	195
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	196 static char c_log10_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	197 "log10(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	198 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	199 "Return the base-10 logarithm of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	200
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	201
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	202 /* internal function not available from Python */
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	203 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	204 c_prodi(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	205 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	206 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	207 r.real = -x.imag;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	208 r.imag = x.real;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	209 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	210 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	211
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	212
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	213 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	214 c_sin(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	215 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	216 Py_complex r;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	217 r.real = sin(x.real) * cosh(x.imag);
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	218 r.imag = cos(x.real) * sinh(x.imag);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	219 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	220 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	221
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	222 static char c_sin_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	223 "sin(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	224 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	225 "Return the sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	226
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	227
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	228 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	229 c_sinh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	230 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	231 Py_complex r;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	232 r.real = cos(x.imag) * sinh(x.real);
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	233 r.imag = sin(x.imag) * cosh(x.real);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	234 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	235 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	236
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	237 static char c_sinh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	238 "sinh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	239 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	240 "Return the hyperbolic sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	241
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	242
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	243 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	244 c_sqrt(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	245 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	246 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	247 double s,d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	248 if (x.real == 0. && x.imag == 0.)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	249 r = x;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	250 else {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	251 s = sqrt(0.5*(fabs(x.real) + hypot(x.real,x.imag)));
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	252 d = 0.5*x.imag/s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	253 if (x.real > 0.) {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	254 r.real = s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	255 r.imag = d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	256 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	257 else if (x.imag >= 0.) {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	258 r.real = d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	259 r.imag = s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	260 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	261 else {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	262 r.real = -d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	263 r.imag = -s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	264 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	265 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	266 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	267 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	268
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	269 static char c_sqrt_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	270 "sqrt(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	271 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	272 "Return the square root of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	273
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	274
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	275 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	276 c_tan(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	277 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	278 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	279 double sr,cr,shi,chi;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	280 double rs,is,rc,ic;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	281 double d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	282 sr = sin(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	283 cr = cos(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	284 shi = sinh(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	285 chi = cosh(x.imag);
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	286 rs = sr * chi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	287 is = cr * shi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	288 rc = cr * chi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	289 ic = -sr * shi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	290 d = rcrc + ic ic;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	291 r.real = (rsrc + isic) / d;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	292 r.imag = (isrc - rsic) / d;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	293 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	294 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	295
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	296 static char c_tan_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	297 "tan(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	298 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	299 "Return the tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	300
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	301
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	302 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	303 c_tanh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	304 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	305 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	306 double si,ci,shr,chr;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	307 double rs,is,rc,ic;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	308 double d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	309 si = sin(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	310 ci = cos(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	311 shr = sinh(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	312 chr = cosh(x.real);
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	313 rs = ci * shr;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	314 is = si * chr;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	315 rc = ci * chr;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	316 ic = si * shr;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	317 d = rcrc + icic;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	318 r.real = (rsrc + isic) / d;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	319 r.imag = (isrc - rsic) / d;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	320 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	321 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	322
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	323 static char c_tanh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	324 "tanh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	325 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	326 "Return the hyperbolic tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	327
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	328
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	329 /* And now the glue to make them available from Python: */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	330
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	331 static PyObject *
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13493 diff changeset	332 math_error(void)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	333 {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	334 if (errno == EDOM)
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	335 PyErr_SetString(PyExc_ValueError, "math domain error");
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	336 else if (errno == ERANGE)
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	337 PyErr_SetString(PyExc_OverflowError, "math range error");
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	338 else /* Unexpected math error */
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	339 PyErr_SetFromErrno(PyExc_ValueError);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	340 return NULL;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	341 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	342
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	343 static PyObject *
13493 8bacf8631a11 ANSI-fication Peter Schneider-Kamp <nowonder@nowonder.de> parents: 13447 diff changeset	344 math_1(PyObject args, Py_complex (func)(Py_complex))
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	345 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	346 Py_complex x;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	347 if (!PyArg_ParseTuple(args, "D", &x))
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	348 return NULL;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	349 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4649 diff changeset	350 PyFPE_START_PROTECT("complex function", return 0)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	351 x = (*func)(x);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	352 PyFPE_END_PROTECT(x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	353 CHECK(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	354 CHECK(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	355 if (errno != 0)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	356 return math_error();
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	357 else
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	358 return PyComplex_FromCComplex(x);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	359 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	360
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	361 #define FUNC1(stubname, func) \
13493 8bacf8631a11 ANSI-fication Peter Schneider-Kamp <nowonder@nowonder.de> parents: 13447 diff changeset	362 static PyObject * stubname(PyObject self, PyObject args) { \
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	363 return math_1(args, func); \
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	364 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	365
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	366 FUNC1(cmath_acos, c_acos)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	367 FUNC1(cmath_acosh, c_acosh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	368 FUNC1(cmath_asin, c_asin)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	369 FUNC1(cmath_asinh, c_asinh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	370 FUNC1(cmath_atan, c_atan)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	371 FUNC1(cmath_atanh, c_atanh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	372 FUNC1(cmath_cos, c_cos)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	373 FUNC1(cmath_cosh, c_cosh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	374 FUNC1(cmath_exp, c_exp)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	375 FUNC1(cmath_log, c_log)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	376 FUNC1(cmath_log10, c_log10)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	377 FUNC1(cmath_sin, c_sin)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	378 FUNC1(cmath_sinh, c_sinh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	379 FUNC1(cmath_sqrt, c_sqrt)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	380 FUNC1(cmath_tan, c_tan)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	381 FUNC1(cmath_tanh, c_tanh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	382
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	383
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	384 static char module_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	385 "This module is always available. It provides access to mathematical\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	386 "functions for complex numbers.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	387
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	388 static PyMethodDef cmath_methods[] = {
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	389 {"acos", cmath_acos, METH_VARARGS, c_acos_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	390 {"acosh", cmath_acosh, METH_VARARGS, c_acosh_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	391 {"asin", cmath_asin, METH_VARARGS, c_asin_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	392 {"asinh", cmath_asinh, METH_VARARGS, c_asinh_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	393 {"atan", cmath_atan, METH_VARARGS, c_atan_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	394 {"atanh", cmath_atanh, METH_VARARGS, c_atanh_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	395 {"cos", cmath_cos, METH_VARARGS, c_cos_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	396 {"cosh", cmath_cosh, METH_VARARGS, c_cosh_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	397 {"exp", cmath_exp, METH_VARARGS, c_exp_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	398 {"log", cmath_log, METH_VARARGS, c_log_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	399 {"log10", cmath_log10, METH_VARARGS, c_log10_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	400 {"sin", cmath_sin, METH_VARARGS, c_sin_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	401 {"sinh", cmath_sinh, METH_VARARGS, c_sinh_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	402 {"sqrt", cmath_sqrt, METH_VARARGS, c_sqrt_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	403 {"tan", cmath_tan, METH_VARARGS, c_tan_doc},
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	404 {"tanh", cmath_tanh, METH_VARARGS, c_tanh_doc},
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	405 {NULL, NULL} /* sentinel */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	406 };
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	407
9588 38023a425e48 Add DL_EXPORT() to all modules that could possibly be used Guido van Rossum <guido@python.org> parents: 5197 diff changeset	408 DL_EXPORT(void)
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13493 diff changeset	409 initcmath(void)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	410 {
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	411 PyObject m, d, *v;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	412
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	413 m = Py_InitModule3("cmath", cmath_methods, module_doc);
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	414 d = PyModule_GetDict(m);
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	415 PyDict_SetItemString(d, "pi",
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	416 v = PyFloat_FromDouble(atan(1.0) * 4.0));
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	417 Py_DECREF(v);
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	418 PyDict_SetItemString(d, "e", v = PyFloat_FromDouble(exp(1.0)));
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	419 Py_DECREF(v);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	420 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/cmathmodule.c @ 19283:b865cd5c1925 legacy-trunk