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mesa: Work-arounds for platforms that lack C99 math functions

This commit is contained in:
Ian Romanick 2010-08-13 20:18:08 -07:00
parent 9364ad8528
commit 2f8ee757ab
1 changed files with 28 additions and 0 deletions
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28
src/mesa/main/imports.h
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@ -116,6 +116,34 @@ typedef union { GLfloat f; GLint i; } fi_type;
#endif
/**
* \name Work-arounds for platforms that lack C99 math functions
*/
/*@{*/
#if (_XOPEN_SOURCE < 600) && !defined(_ISOC99_SOURCE) \
&& (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L))
#define acosf(f) ((float) acos(f))
#define asinf(f) ((float) asin(f))
#define atan2f(f) ((float) atan2(f))
#define atanf(f) ((float) atan(f))
#define cielf(f) ((float) ciel(f))
#define cosf(f) ((float) cos(f))
#define coshf(f) ((float) cosh(f))
#define expf(f) ((float) exp(f))
#define exp2f(f) ((float) exp2(f))
#define floorf(f) ((float) floor(f))
#define logf(f) ((float) log(f))
#define log2f(f) ((float) log2(f))
#define powf(f) ((float) pow(f))
#define sinf(f) ((float) sin(f))
#define sinhf(f) ((float) sinh(f))
#define sqrtf(f) ((float) sqrt(f))
#define tanf(f) ((float) tan(f))
#define tanhf(f) ((float) tanh(f))
#define truncf(f) ((float) trunc(f))
#endif
/*@}*/
/***
*** LOG2: Log base 2 of float
***/