0b7dcd69c8
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24864 a1c6a512-1295-4272-9138-f99709370657
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* math.h -- Definitions for the math floating point package. */
|
|
|
|
#ifndef _MATH_H_
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
#define _MATH_H_
|
|
|
|
#include "_ansi.h"
|
|
|
|
#ifndef __STRICT_ANSI__
|
|
|
|
#define __signgam_r(ptr) ((ptr)->_new._reent._gamma_signgam)
|
|
|
|
/* Values for the type field of struct exception. */
|
|
|
|
#define DOMAIN 1
|
|
#define SING 2
|
|
#define OVERFLOW 3
|
|
#define UNDERFLOW 4
|
|
#define TLOSS 5
|
|
#define PLOSS 6
|
|
|
|
/* Useful constants. */
|
|
|
|
#define M_E 2.7182818284590452354
|
|
#define M_LOG2E 1.4426950408889634074
|
|
#define M_LOG10E 0.43429448190325182765
|
|
#define M_LN2 0.69314718055994530942
|
|
#define M_LN10 2.30258509299404568402
|
|
#define M_PI 3.14159265358979323846
|
|
#define M_TWOPI (M_PI * 2.0)
|
|
#define M_PI_2 1.57079632679489661923
|
|
#define M_PI_4 0.78539816339744830962
|
|
#define M_3PI_4 2.3561944901923448370E0
|
|
#define M_SQRTPI 1.77245385090551602792981
|
|
#define M_1_PI 0.31830988618379067154
|
|
#define M_2_PI 0.63661977236758134308
|
|
#define M_2_SQRTPI 1.12837916709551257390
|
|
#define M_SQRT2 1.41421356237309504880
|
|
#define M_SQRT1_2 0.70710678118654752440
|
|
#define M_LN2LO 1.9082149292705877000E-10
|
|
#define M_LN2HI 6.9314718036912381649E-1
|
|
#define M_SQRT3 1.73205080756887719000
|
|
#define M_IVLN10 0.43429448190325182765 /* 1 / log(10) */
|
|
#define M_LOG2_E 0.693147180559945309417
|
|
#define M_INVLN2 1.4426950408889633870E0 /* 1 / log(2) */
|
|
|
|
#endif /* ! defined (__STRICT_ANSI__) */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* _MATH_H_ */
|