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

annotate Modules/cmathmodule.c @ 20737:00a581bdedeb legacy-trunk

When overriding __str__ or __repr__, set the tp_print slot to NULL.

author	Guido van Rossum <guido@python.org>
date	Mon, 29 Oct 2001 14:33:44 +0000
parents	64bcef1702ad
children	2f48ae5c8a94

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 #ifndef M_PI
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	8 #define M_PI (3.141592653589793239)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	9 #endif
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	10
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	11 /* First, the C functions that do the real work */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	12
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	13 /* constants */
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	14 static Py_complex c_one = {1., 0.};
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	15 static Py_complex c_half = {0.5, 0.};
d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	16 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	17 static Py_complex c_halfi = {0., 0.5};
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	18
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	19 /* forward declarations */
13685 129c9775cc19 Fix typo in previous patch. Thomas Wouters <thomas@python.org> parents: 13684 diff changeset	20 staticforward Py_complex c_log(Py_complex);
129c9775cc19 Fix typo in previous patch. Thomas Wouters <thomas@python.org> parents: 13684 diff changeset	21 staticforward Py_complex c_prodi(Py_complex);
129c9775cc19 Fix typo in previous patch. Thomas Wouters <thomas@python.org> parents: 13684 diff changeset	22 staticforward Py_complex c_sqrt(Py_complex);
3334 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
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	25 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	26 c_acos(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	27 {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	28 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	29 c_sqrt(c_diff(c_one,c_prod(x,x))))))));
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	30 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	31
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	32 static char c_acos_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	33 "acos(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	34 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	35 "Return the arc cosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	36
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 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_acosh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	40 {
13169 b78b996e8ebc Patch by Nadav Horesh to make acosh and asinh better. Guido van Rossum <guido@python.org> parents: 10403 diff changeset	41 Py_complex z;
b78b996e8ebc Patch by Nadav Horesh to make acosh and asinh better. Guido van Rossum <guido@python.org> parents: 10403 diff changeset	42 z = c_sqrt(c_half);
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	43 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	44 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	45 return c_sum(z, z);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	46 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	47
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	48 static char c_acosh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	49 "acosh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	50 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	51 "Return the hyperbolic arccosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	52
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	53
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	54 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	55 c_asin(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	56 {
16722 cc338a5c16e5 Bug #133297: cmath.asin is the same as cmath.asinh. Tim Peters <tim.peters@gmail.com> parents: 16708 diff changeset	57 /* -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	58 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	59 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	60 return c_neg(c_prodi(c_log(
844fde600a61 asin micro-optimization suggested in email. Tim Peters <tim.peters@gmail.com> parents: 16722 diff changeset	61 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	62 ) ) );
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	63 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	64
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	65 static char c_asin_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	66 "asin(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	67 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	68 "Return the arc sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	69
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	70
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	71 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	72 c_asinh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	73 {
9886 fae6d24b897b Jim Ahlstrom patch: Watcom chokes on a long expression in c_asinh(). Guido van Rossum <guido@python.org> parents: 9593 diff changeset	74 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	75 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	76 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	77 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	78 return c_sum(z, z);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	79 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	80
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	81 static char c_asinh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	82 "asinh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	83 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	84 "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	85
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	86
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	87 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	88 c_atan(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	89 {
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	90 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	91 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	92
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	93 static char c_atan_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	94 "atan(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	95 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	96 "Return the arc tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	97
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	98
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	99 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	100 c_atanh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	101 {
16708 57799f013aad Rename some constants for easier readability. Tim Peters <tim.peters@gmail.com> parents: 16707 diff changeset	102 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	103 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	104
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	105 static char c_atanh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	106 "atanh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	107 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	108 "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	109
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	110
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	111 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	112 c_cos(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	113 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	114 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	115 r.real = cos(x.real)*cosh(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	116 r.imag = -sin(x.real)*sinh(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	117 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	118 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	119
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	120 static char c_cos_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	121 "cos(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	122 "n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	123 "Return the cosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	124
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	125
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	126 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	127 c_cosh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	128 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	129 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	130 r.real = cos(x.imag)*cosh(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	131 r.imag = sin(x.imag)*sinh(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	132 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	133 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	134
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	135 static char c_cosh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	136 "cosh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	137 "n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	138 "Return the hyperbolic cosine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	139
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	140
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	141 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	142 c_exp(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	143 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	144 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	145 double l = exp(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	146 r.real = l*cos(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	147 r.imag = l*sin(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	148 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	149 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	150
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	151 static char c_exp_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	152 "exp(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	153 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	154 "Return the exponential value e**x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	155
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	156
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	157 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	158 c_log(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	159 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	160 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	161 double l = hypot(x.real,x.imag);
19758 64bcef1702ad Revert parts of patch #453627, documenting the resulting test failures Martin v. Löwis <martin@v.loewis.de> parents: 19750 diff changeset	162 r.imag = atan2(x.imag, x.real);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	163 r.real = log(l);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	164 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	165 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	166
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	167 static char c_log_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	168 "log(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	169 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	170 "Return the natural logarithm of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	171
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	172
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	173 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	174 c_log10(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	175 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	176 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	177 double l = hypot(x.real,x.imag);
19758 64bcef1702ad Revert parts of patch #453627, documenting the resulting test failures Martin v. Löwis <martin@v.loewis.de> parents: 19750 diff changeset	178 r.imag = atan2(x.imag, x.real)/log(10.);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	179 r.real = log10(l);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	180 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	181 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	182
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	183 static char c_log10_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	184 "log10(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	185 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	186 "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	187
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	188
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	189 /* 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	190 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	191 c_prodi(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	192 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	193 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	194 r.real = -x.imag;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	195 r.imag = x.real;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	196 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	197 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	198
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	199
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	200 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	201 c_sin(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	202 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	203 Py_complex r;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	204 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	205 r.imag = cos(x.real) * sinh(x.imag);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	206 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	207 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	208
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	209 static char c_sin_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	210 "sin(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	211 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	212 "Return the sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	213
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	214
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	215 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	216 c_sinh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	217 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	218 Py_complex r;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	219 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	220 r.imag = sin(x.imag) * cosh(x.real);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	221 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	222 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	223
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	224 static char c_sinh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	225 "sinh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	226 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	227 "Return the hyperbolic sine of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	228
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	229
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	230 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	231 c_sqrt(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	232 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	233 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	234 double s,d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	235 if (x.real == 0. && x.imag == 0.)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	236 r = x;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	237 else {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	238 s = sqrt(0.5*(fabs(x.real) + hypot(x.real,x.imag)));
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	239 d = 0.5*x.imag/s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	240 if (x.real > 0.) {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	241 r.real = s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	242 r.imag = d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	243 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	244 else if (x.imag >= 0.) {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	245 r.real = d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	246 r.imag = s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	247 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	248 else {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	249 r.real = -d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	250 r.imag = -s;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	251 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	252 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	253 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	254 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	255
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	256 static char c_sqrt_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	257 "sqrt(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	258 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	259 "Return the square root of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	260
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	261
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	262 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	263 c_tan(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	264 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	265 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	266 double sr,cr,shi,chi;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	267 double rs,is,rc,ic;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	268 double d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	269 sr = sin(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	270 cr = cos(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	271 shi = sinh(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	272 chi = cosh(x.imag);
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	273 rs = sr * chi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	274 is = cr * shi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	275 rc = cr * chi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	276 ic = -sr * shi;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	277 d = rcrc + ic ic;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	278 r.real = (rsrc + isic) / d;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	279 r.imag = (isrc - rsic) / d;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	280 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	281 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	282
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	283 static char c_tan_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	284 "tan(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	285 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	286 "Return the tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	287
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	288
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	289 static Py_complex
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	290 c_tanh(Py_complex x)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	291 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	292 Py_complex r;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	293 double si,ci,shr,chr;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	294 double rs,is,rc,ic;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	295 double d;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	296 si = sin(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	297 ci = cos(x.imag);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	298 shr = sinh(x.real);
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	299 chr = cosh(x.real);
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	300 rs = ci * shr;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	301 is = si * chr;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	302 rc = ci * chr;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	303 ic = si * shr;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	304 d = rcrc + icic;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	305 r.real = (rsrc + isic) / d;
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	306 r.imag = (isrc - rsic) / d;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	307 return r;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	308 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	309
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	310 static char c_tanh_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	311 "tanh(x)\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	312 "\n"
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	313 "Return the hyperbolic tangent of x.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	314
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	315
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	316 /* And now the glue to make them available from Python: */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	317
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	318 static PyObject *
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13493 diff changeset	319 math_error(void)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	320 {
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	321 if (errno == EDOM)
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	322 PyErr_SetString(PyExc_ValueError, "math domain error");
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	323 else if (errno == ERANGE)
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	324 PyErr_SetString(PyExc_OverflowError, "math range error");
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	325 else /* Unexpected math error */
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	326 PyErr_SetFromErrno(PyExc_ValueError);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	327 return NULL;
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
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	330 static PyObject *
13493 8bacf8631a11 ANSI-fication Peter Schneider-Kamp <nowonder@nowonder.de> parents: 13447 diff changeset	331 math_1(PyObject args, Py_complex (func)(Py_complex))
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	332 {
3771 d0988318b756 complex -> Py_complex Guido van Rossum <guido@python.org> parents: 3615 diff changeset	333 Py_complex x;
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	334 if (!PyArg_ParseTuple(args, "D", &x))
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	335 return NULL;
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	336 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4649 diff changeset	337 PyFPE_START_PROTECT("complex function", return 0)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	338 x = (*func)(x);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	339 PyFPE_END_PROTECT(x)
19750 35b6a1d0b1e0 Rework the way we try to check for libm overflow, given that C99 no longer Tim Peters <tim.peters@gmail.com> parents: 19730 diff changeset	340 Py_SET_ERANGE_IF_OVERFLOW(x.real);
35b6a1d0b1e0 Rework the way we try to check for libm overflow, given that C99 no longer Tim Peters <tim.peters@gmail.com> parents: 19730 diff changeset	341 Py_SET_ERANGE_IF_OVERFLOW(x.imag);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	342 if (errno != 0)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	343 return math_error();
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	344 else
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	345 return PyComplex_FromCComplex(x);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	346 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	347
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	348 #define FUNC1(stubname, func) \
13493 8bacf8631a11 ANSI-fication Peter Schneider-Kamp <nowonder@nowonder.de> parents: 13447 diff changeset	349 static PyObject * stubname(PyObject self, PyObject args) { \
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	350 return math_1(args, func); \
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	351 }
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	352
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	353 FUNC1(cmath_acos, c_acos)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	354 FUNC1(cmath_acosh, c_acosh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	355 FUNC1(cmath_asin, c_asin)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	356 FUNC1(cmath_asinh, c_asinh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	357 FUNC1(cmath_atan, c_atan)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	358 FUNC1(cmath_atanh, c_atanh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	359 FUNC1(cmath_cos, c_cos)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	360 FUNC1(cmath_cosh, c_cosh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	361 FUNC1(cmath_exp, c_exp)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	362 FUNC1(cmath_log, c_log)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	363 FUNC1(cmath_log10, c_log10)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	364 FUNC1(cmath_sin, c_sin)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	365 FUNC1(cmath_sinh, c_sinh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	366 FUNC1(cmath_sqrt, c_sqrt)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	367 FUNC1(cmath_tan, c_tan)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	368 FUNC1(cmath_tanh, c_tanh)
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	369
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	370
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	371 static char module_doc[] =
9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	372 "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	373 "functions for complex numbers.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	374
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	375 static PyMethodDef cmath_methods[] = {
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	376 {"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	377 {"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	378 {"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	379 {"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	380 {"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	381 {"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	382 {"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	383 {"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	384 {"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	385 {"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	386 {"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	387 {"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	388 {"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	389 {"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	390 {"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	391 {"tanh", cmath_tanh, METH_VARARGS, c_tanh_doc},
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	392 {NULL, NULL} /* sentinel */
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	393 };
969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	394
9588 38023a425e48 Add DL_EXPORT() to all modules that could possibly be used Guido van Rossum <guido@python.org> parents: 5197 diff changeset	395 DL_EXPORT(void)
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13493 diff changeset	396 initcmath(void)
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	397 {
4639 97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	398 PyObject m, d, *v;
16707 9696c95d09b7 Mechanical edits just so I can read it. Tim Peters <tim.peters@gmail.com> parents: 13817 diff changeset	399
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	400 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	401 d = PyModule_GetDict(m);
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	402 PyDict_SetItemString(d, "pi",
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	403 v = PyFloat_FromDouble(atan(1.0) * 4.0));
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	404 Py_DECREF(v);
97ec9dfbb2b6 Renamed Grandly Roger E. Masse <rmasse@newcnri.cnri.reston.va.us> parents: 4600 diff changeset	405 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	406 Py_DECREF(v);
3334 969bd911e114 complex math Guido van Rossum <guido@python.org> parents: diff changeset	407 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/cmathmodule.c @ 20737:00a581bdedeb legacy-trunk