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Revert "mathematics.h: remove a couple of math defines" 

This reverts commit a2b186a188.

The defines were present for several years, removing
them without a version bump may break API.
(Fixes MPlayer compilation.)
This commit is contained in:
Carl Eugen Hoyos 2012-06-22 16:10:42 +02:00
parent 10d2a4028c
commit 15bde06084
1 changed files with 18 additions and 0 deletions
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18
libavutil/mathematics.h
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@ -26,12 +26,30 @@
#include "attributes.h"
#include "rational.h"
#ifndef M_E
#define M_E 2.7182818284590452354 /* e */
#endif
#ifndef M_LN2
#define M_LN2 0.69314718055994530942 /* log_e 2 */
#endif
#ifndef M_LN10
#define M_LN10 2.30258509299404568402 /* log_e 10 */
#endif
#ifndef M_LOG2_10
#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */
#endif
#ifndef M_PHI
#define M_PHI 1.61803398874989484820 /* phi / golden ratio */
#endif
#ifndef M_PI
#define M_PI 3.14159265358979323846 /* pi */
#endif
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
#endif
#ifndef M_SQRT2
#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
#endif
#ifndef NAN
#define NAN (0.0/0.0)
#endif