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

annotate Modules/mathmodule.c @ 16798:258dcafe2d0b legacy-trunk

Gustavo Niemeyer <niemeyer@conectiva.com>: Fixed recno support (keys are integers rather than strings). Work around DB bug that cause stdin to be closed by rnopen() when the DB file needed to exist but did not (no longer segfaults). This closes SF tracker patch #403445. Also wrapped some long lines and added whitespace around operators -- FLD.

author	Fred Drake <fdrake@acm.org>
date	Tue, 27 Feb 2001 18:56:46 +0000
parents	2ed358446f2f
children	bde1cf5740ec

rev	line source
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	1 /* Math module -- standard C math library functions, pi and e */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	2
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	3 #include "Python.h"
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	4
3597 e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	5 #ifndef _MSC_VER
2125 bd061dc30842 rearrange declarations somewhat Guido van Rossum <guido@python.org> parents: 2061 diff changeset	6 #ifndef __STDC__
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	7 extern double fmod (double, double);
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	8 extern double frexp (double, int *);
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	9 extern double ldexp (double, int);
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	10 extern double modf (double, double *);
3597 e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	11 #endif /* __STDC__ */
e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	12 #endif /* _MSC_VER */
e07597389d64 Microsoft C changes Guido van Rossum <guido@python.org> parents: 3339 diff changeset	13
2125 bd061dc30842 rearrange declarations somewhat Guido van Rossum <guido@python.org> parents: 2061 diff changeset	14
1271 2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	15 #ifdef i860
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	16 /* Cray APP has bogus definition of HUGE_VAL in <math.h> */
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	17 #undef HUGE_VAL
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	18 #endif
2919b448e385 * Microscopic corrections to make things compile on the Cray APP. Guido van Rossum <guido@python.org> parents: 1252 diff changeset	19
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	20 /* RED_FLAG 12-Oct-2000 Tim
15181 2ed358446f2f Repaired a comment and asserted a precondition. Tim Peters <tim.peters@gmail.com> parents: 15170 diff changeset	21 * What CHECK does if errno == 0 and x is a NaN is a platform-dependent crap
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	22 * shoot. Most (but not all!) platforms will end up setting errno to ERANGE
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	23 * then, but EDOM is probably better.
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	24 */
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	25 #ifdef HUGE_VAL
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	26 #define CHECK(x) if (errno != 0) ; \
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	27 else if (-HUGE_VAL <= (x) && (x) <= HUGE_VAL) ; \
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	28 else errno = ERANGE
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	29 #else
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	30 #define CHECK(x) /* Don't know how to check */
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	31 #endif
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	32
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	33 /* Call is_error when errno != 0, and where x is the result libm
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	34 * returned. is_error will usually set up an exception and return
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	35 * true (1), but may return false (0) without setting up an exception.
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	36 */
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	37 static int
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	38 is_error(double x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	39 {
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	40 int result = 1; /* presumption of guilt */
15181 2ed358446f2f Repaired a comment and asserted a precondition. Tim Peters <tim.peters@gmail.com> parents: 15170 diff changeset	41 assert(errno); /* non-zero errno is a precondition for calling */
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	42 if (errno == EDOM)
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	43 PyErr_SetString(PyExc_ValueError, "math domain error");
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	44 else if (errno == ERANGE) {
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	45 /* ANSI C generally requires libm functions to set ERANGE
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	46 * on overflow, but also generally allows them to set
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	47 * ERANGE on underflow too. There's no consistency about
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	48 * the latter across platforms. Here we suppress the
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	49 * underflow errors (libm functions should return a zero
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	50 * on underflow, and +- HUGE_VAL on overflow, so testing
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	51 * the result for zero suffices to distinguish the cases).
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	52 */
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	53 if (x)
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	54 PyErr_SetString(PyExc_OverflowError,
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	55 "math range error");
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	56 else
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	57 result = 0;
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	58 }
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	59 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	60 /* Unexpected math error */
49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	61 PyErr_SetFromErrno(PyExc_ValueError);
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	62 return result;
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	63 }
56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	64
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	65 static PyObject *
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	66 math_1(PyObject args, double (func) (double), char *argsfmt)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	67 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	68 double x;
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	69 if (! PyArg_ParseTuple(args, argsfmt, &x))
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	70 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	71 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4780 diff changeset	72 PyFPE_START_PROTECT("in math_1", return 0)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	73 x = (*func)(x);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	74 PyFPE_END_PROTECT(x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	75 CHECK(x);
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	76 if (errno && is_error(x))
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	77 return NULL;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	78 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	79 return PyFloat_FromDouble(x);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	80 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	81
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	82 static PyObject *
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	83 math_2(PyObject args, double (func) (double, double), char *argsfmt)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	84 {
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	85 double x, y;
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	86 if (! PyArg_ParseTuple(args, argsfmt, &x, &y))
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	87 return NULL;
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	88 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4780 diff changeset	89 PyFPE_START_PROTECT("in math_2", return 0)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	90 x = (*func)(x, y);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	91 PyFPE_END_PROTECT(x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	92 CHECK(x);
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	93 if (errno && is_error(x))
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	94 return NULL;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	95 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	96 return PyFloat_FromDouble(x);
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	97 }
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	98
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	99 #define FUNC1(funcname, func, docstring) \
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	100 static PyObject * math_##funcname(PyObject self, PyObject args) { \
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	101 return math_1(args, func, "d:" #funcname); \
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	102 }\
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	103 static char math_##funcname##_doc [] = docstring;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	104
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	105 #define FUNC2(funcname, func, docstring) \
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	106 static PyObject * math_##funcname(PyObject self, PyObject args) { \
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	107 return math_2(args, func, "dd:" #funcname); \
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	108 }\
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	109 static char math_##funcname##_doc [] = docstring;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	110
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	111 FUNC1(acos, acos,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	112 "acos(x)\n\nReturn the arc cosine of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	113 FUNC1(asin, asin,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	114 "asin(x)\n\nReturn the arc sine of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	115 FUNC1(atan, atan,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	116 "atan(x)\n\nReturn the arc tangent of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	117 FUNC2(atan2, atan2,
9608 5a36bad1d248 Correctly document atan2. Guido van Rossum <guido@python.org> parents: 9593 diff changeset	118 "atan2(y, x)\n\nReturn atan(y/x).")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	119 FUNC1(ceil, ceil,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	120 "ceil(x)\n\nReturn the ceiling of x as a real.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	121 FUNC1(cos, cos,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	122 "cos(x)\n\nReturn the cosine of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	123 FUNC1(cosh, cosh,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	124 "cosh(x)\n\nReturn the hyperbolic cosine of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	125 FUNC1(exp, exp,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	126 "exp(x)\n\nReturn e raised to the power of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	127 FUNC1(fabs, fabs,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	128 "fabs(x)\n\nReturn the absolute value of the real x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	129 FUNC1(floor, floor,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	130 "floor(x)\n\nReturn the floor of x as a real.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	131 FUNC2(fmod, fmod,
14616 284508c653c7 Fixed legit gripe from c.l.py that math.fmod docs aren't confusing enough. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	132 "fmod(x,y)\n\nReturn fmod(x, y), according to platform C."
284508c653c7 Fixed legit gripe from c.l.py that math.fmod docs aren't confusing enough. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	133 " x % y may differ.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	134 FUNC2(hypot, hypot,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	135 "hypot(x,y)\n\nReturn the Euclidean distance, sqrt(xx + yy).")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	136 FUNC1(log, log,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	137 "log(x)\n\nReturn the natural logarithm of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	138 FUNC1(log10, log10,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	139 "log10(x)\n\nReturn the base-10 logarithm of x.")
320 26426c42a162 Add some err_errno calls that were missing Guido van Rossum <guido@python.org> parents: 289 diff changeset	140 #ifdef MPW_3_1 /* This hack is needed for MPW 3.1 but not for 3.2 ... */
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	141 FUNC2(pow, power,
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	142 "pow(x,y)\n\nReturn x**y.")
289 c4c278c56e90 Apparently MPW has power() instead of pow(). Guido van Rossum <guido@python.org> parents: 168 diff changeset	143 #else
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	144 FUNC2(pow, pow,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	145 "pow(x,y)\n\nReturn x**y.")
289 c4c278c56e90 Apparently MPW has power() instead of pow(). Guido van Rossum <guido@python.org> parents: 168 diff changeset	146 #endif
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	147 FUNC1(sin, sin,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	148 "sin(x)\n\nReturn the sine of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	149 FUNC1(sinh, sinh,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	150 "sinh(x)\n\nReturn the hyperbolic sine of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	151 FUNC1(sqrt, sqrt,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	152 "sqrt(x)\n\nReturn the square root of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	153 FUNC1(tan, tan,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	154 "tan(x)\n\nReturn the tangent of x.")
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	155 FUNC1(tanh, tanh,
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	156 "tanh(x)\n\nReturn the hyperbolic tangent of x.")
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	157
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	158
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	159 static PyObject *
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	160 math_frexp(PyObject self, PyObject args)
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	161 {
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	162 double x;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	163 int i;
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	164 if (! PyArg_ParseTuple(args, "d:frexp", &x))
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	165 return NULL;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	166 errno = 0;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	167 x = frexp(x, &i);
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	168 CHECK(x);
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	169 if (errno && is_error(x))
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	170 return NULL;
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	171 else
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	172 return Py_BuildValue("(di)", x, i);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	173 }
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	174
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	175 static char math_frexp_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	176 "frexp(x)\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	177 \n\
13331 7e3d60455958 Typo repair in docstring -- my fault. Tim Peters <tim.peters@gmail.com> parents: 13326 diff changeset	178 Return the mantissa and exponent of x, as pair (m, e).\n\
13309 c7ef1585983c Repair docs for math.frexp (they were wrong). Tim Peters <tim.peters@gmail.com> parents: 13256 diff changeset	179 m is a float and e is an int, such that x = m * 2.**e.\n\
c7ef1585983c Repair docs for math.frexp (they were wrong). Tim Peters <tim.peters@gmail.com> parents: 13256 diff changeset	180 If x is 0, m and e are both 0. Else 0.5 <= abs(m) < 1.0.";
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	181
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	182
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	183 static PyObject *
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	184 math_ldexp(PyObject self, PyObject args)
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	185 {
12618 cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	186 double x;
cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	187 int exp;
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	188 if (! PyArg_ParseTuple(args, "di:ldexp", &x, &exp))
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	189 return NULL;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	190 errno = 0;
5120 a48f3678f9e1 Changes for Lee Busby's SIGFPE patch set. Guido van Rossum <guido@python.org> parents: 4780 diff changeset	191 PyFPE_START_PROTECT("ldexp", return 0)
12618 cc4350b1b91f Trent Mick: Guido van Rossum <guido@python.org> parents: 9608 diff changeset	192 x = ldexp(x, exp);
5197 74c12704a0bd New form of PyFPE_END_PROTECT macro. Guido van Rossum <guido@python.org> parents: 5120 diff changeset	193 PyFPE_END_PROTECT(x)
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	194 CHECK(x);
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	195 if (errno && is_error(x))
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	196 return NULL;
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	197 else
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	198 return PyFloat_FromDouble(x);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	199 }
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	200
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	201 static char math_ldexp_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	202 "ldexp_doc(x, i)\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	203 \n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	204 Return x * (2**i).";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	205
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	206
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	207 static PyObject *
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	208 math_modf(PyObject self, PyObject args)
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	209 {
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	210 double x, y;
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	211 if (! PyArg_ParseTuple(args, "d:modf", &x))
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	212 return NULL;
9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	213 errno = 0;
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	214 #ifdef MPW /* MPW C modf expects pointer to extended as second argument */
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	215 {
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	216 extended e;
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	217 x = modf(x, &e);
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	218 y = e;
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	219 }
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	220 #else
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	221 x = modf(x, &y);
1746 1940892d2fe3 Merge alpha100 branch back to main trunk Guido van Rossum <guido@python.org> parents: 1319 diff changeset	222 #endif
498 56bb1067a880 Improve error handling. Guido van Rossum <guido@python.org> parents: 438 diff changeset	223 CHECK(x);
15170 09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	224 if (errno && is_error(x))
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	225 return NULL;
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	226 else
09c7ac188ce2 Stop raising OverflowError on underflows reported by libm (errno==ERANGE and Tim Peters <tim.peters@gmail.com> parents: 14616 diff changeset	227 return Py_BuildValue("(dd)", x, y);
407 9b3d557665a9 Added frexp, ldexp, modf, fmod. Guido van Rossum <guido@python.org> parents: 320 diff changeset	228 }
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	229
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	230 static char math_modf_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	231 "modf(x)\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	232 \n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	233 Return the fractional and integer parts of x. Both results carry the sign\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	234 of x. The integer part is returned as a real.";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	235
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	236
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	237 static PyMethodDef math_methods[] = {
13326 24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	238 {"acos", math_acos, METH_VARARGS, math_acos_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	239 {"asin", math_asin, METH_VARARGS, math_asin_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	240 {"atan", math_atan, METH_VARARGS, math_atan_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	241 {"atan2", math_atan2, METH_VARARGS, math_atan2_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	242 {"ceil", math_ceil, METH_VARARGS, math_ceil_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	243 {"cos", math_cos, METH_VARARGS, math_cos_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	244 {"cosh", math_cosh, METH_VARARGS, math_cosh_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	245 {"exp", math_exp, METH_VARARGS, math_exp_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	246 {"fabs", math_fabs, METH_VARARGS, math_fabs_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	247 {"floor", math_floor, METH_VARARGS, math_floor_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	248 {"fmod", math_fmod, METH_VARARGS, math_fmod_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	249 {"frexp", math_frexp, METH_VARARGS, math_frexp_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	250 {"hypot", math_hypot, METH_VARARGS, math_hypot_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	251 {"ldexp", math_ldexp, METH_VARARGS, math_ldexp_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	252 {"log", math_log, METH_VARARGS, math_log_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	253 {"log10", math_log10, METH_VARARGS, math_log10_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	254 {"modf", math_modf, METH_VARARGS, math_modf_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	255 {"pow", math_pow, METH_VARARGS, math_pow_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	256 {"sin", math_sin, METH_VARARGS, math_sin_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	257 {"sinh", math_sinh, METH_VARARGS, math_sinh_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	258 {"sqrt", math_sqrt, METH_VARARGS, math_sqrt_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	259 {"tan", math_tan, METH_VARARGS, math_tan_doc},
24717405dd89 ANSI-fication, remove Py_PROTO, etc. Fred Drake <fdrake@acm.org> parents: 13309 diff changeset	260 {"tanh", math_tanh, METH_VARARGS, math_tanh_doc},
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	261 {NULL, NULL} /* sentinel */
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	262 };
fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	263
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	264
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	265 static char module_doc [] =
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	266 "This module is always available. It provides access to the\n\
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	267 mathematical functions defined by the C standard.";
f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	268
9588 38023a425e48 Add DL_EXPORT() to all modules that could possibly be used Guido van Rossum <guido@python.org> parents: 5554 diff changeset	269 DL_EXPORT(void)
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13331 diff changeset	270 initmath(void)
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	271 {
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	272 PyObject m, d, *v;
42 4835c2d38b84 Take out duplication of code in initmodule(). Guido van Rossum <guido@python.org> parents: 6 diff changeset	273
9593 f22f769bf3d9 Added Doc strings -- by Chris Petrilli. Guido van Rossum <guido@python.org> parents: 9588 diff changeset	274 m = Py_InitModule3("math", math_methods, module_doc);
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	275 d = PyModule_GetDict(m);
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	276
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	277 if (!(v = PyFloat_FromDouble(atan(1.0) * 4.0)))
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	278 goto finally;
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	279 if (PyDict_SetItemString(d, "pi", v) < 0)
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	280 goto finally;
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	281 Py_DECREF(v);
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	282
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	283 if (!(v = PyFloat_FromDouble(exp(1.0))))
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	284 goto finally;
4765 f8b36c0ec114 Correct 1-char typo / syntax error. Guido van Rossum <guido@python.org> parents: 4752 diff changeset	285 if (PyDict_SetItemString(d, "e", v) < 0)
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	286 goto finally;
4635 49745ddb4f69 Renamed Barry Warsaw <barry@python.org> parents: 4503 diff changeset	287 Py_DECREF(v);
4752 7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	288
7367fb107108 Better error checking in initmath(). Barry Warsaw <barry@python.org> parents: 4635 diff changeset	289 finally:
14346 5397fdf88ec2 Do the absolute minimal amount of modifications to eradicate Barry Warsaw <barry@python.org> parents: 13912 diff changeset	290 return;
6 fc6fcd7df4f7 Initial revision Guido van Rossum <guido@python.org> parents: diff changeset	291 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/mathmodule.c @ 16798:258dcafe2d0b legacy-trunk