diff options
Diffstat (limited to 'Include/pymath.h')
| -rw-r--r-- | Include/pymath.h | 73 |
1 files changed, 21 insertions, 52 deletions
diff --git a/Include/pymath.h b/Include/pymath.h index 2f47f87434..d688e5033e 100644 --- a/Include/pymath.h +++ b/Include/pymath.h @@ -1,41 +1,10 @@ +// Symbols and macros to supply platform-independent interfaces to mathematical +// functions and constants. + #ifndef Py_PYMATH_H #define Py_PYMATH_H -#include "pyconfig.h" /* include for defines */ - -/************************************************************************** -Symbols and macros to supply platform-independent interfaces to mathematical -functions and constants -**************************************************************************/ - -/* Python provides implementations for copysign, round and hypot in - * Python/pymath.c just in case your math library doesn't provide the - * functions. - * - *Note: PC/pyconfig.h defines copysign as _copysign - */ -#ifndef HAVE_COPYSIGN -extern double copysign(double, double); -#endif - -#ifndef HAVE_ROUND -extern double round(double); -#endif - -#ifndef HAVE_HYPOT -extern double hypot(double, double); -#endif - -/* extra declarations */ -#ifndef _MSC_VER -#ifndef __STDC__ -extern double fmod (double, double); -extern double frexp (double, int *); -extern double ldexp (double, int); -extern double modf (double, double *); -extern double pow(double, double); -#endif /* __STDC__ */ -#endif /* _MSC_VER */ +#include "pyconfig.h" // HAVE_DECL_ISNAN /* High precision definition of pi and e (Euler) * The values are taken from libc6's math.h. @@ -123,13 +92,13 @@ PyAPI_FUNC(double) _Py_force_double(double); * Note: PC/pyconfig.h defines Py_IS_FINITE as _finite */ #ifndef Py_IS_FINITE -#if defined HAVE_DECL_ISFINITE && HAVE_DECL_ISFINITE == 1 -#define Py_IS_FINITE(X) isfinite(X) -#elif defined HAVE_FINITE -#define Py_IS_FINITE(X) finite(X) -#else -#define Py_IS_FINITE(X) (!Py_IS_INFINITY(X) && !Py_IS_NAN(X)) -#endif +# if defined HAVE_DECL_ISFINITE && HAVE_DECL_ISFINITE == 1 +# define Py_IS_FINITE(X) isfinite(X) +# elif defined HAVE_FINITE +# define Py_IS_FINITE(X) finite(X) +# else +# define Py_IS_FINITE(X) (!Py_IS_INFINITY(X) && !Py_IS_NAN(X)) +# endif #endif /* HUGE_VAL is supposed to expand to a positive double infinity. Python @@ -140,7 +109,7 @@ PyAPI_FUNC(double) _Py_force_double(double); * config to #define Py_HUGE_VAL to something that works on your platform. */ #ifndef Py_HUGE_VAL -#define Py_HUGE_VAL HUGE_VAL +# define Py_HUGE_VAL HUGE_VAL #endif /* Py_NAN @@ -149,10 +118,10 @@ PyAPI_FUNC(double) _Py_force_double(double); * doesn't support NaNs. */ #if !defined(Py_NAN) && !defined(Py_NO_NAN) -#if !defined(__INTEL_COMPILER) - #define Py_NAN (Py_HUGE_VAL * 0.) -#else /* __INTEL_COMPILER */ - #if defined(ICC_NAN_STRICT) +# if !defined(__INTEL_COMPILER) +# define Py_NAN (Py_HUGE_VAL * 0.) +# else /* __INTEL_COMPILER */ +# if defined(ICC_NAN_STRICT) #pragma float_control(push) #pragma float_control(precise, on) #pragma float_control(except, on) @@ -161,12 +130,12 @@ PyAPI_FUNC(double) _Py_force_double(double); return sqrt(-1.0); } #pragma float_control (pop) - #define Py_NAN __icc_nan() - #else /* ICC_NAN_RELAXED as default for Intel Compiler */ +# define Py_NAN __icc_nan() +# else /* ICC_NAN_RELAXED as default for Intel Compiler */ static const union { unsigned char buf[8]; double __icc_nan; } __nan_store = {0,0,0,0,0,0,0xf8,0x7f}; - #define Py_NAN (__nan_store.__icc_nan) - #endif /* ICC_NAN_STRICT */ -#endif /* __INTEL_COMPILER */ +# define Py_NAN (__nan_store.__icc_nan) +# endif /* ICC_NAN_STRICT */ +# endif /* __INTEL_COMPILER */ #endif #endif /* Py_PYMATH_H */ |