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Use macros instead of inline functions to replace the following missing C99 

functions: exp2, exp2f, log2, log2f.

Should fix compilation in systems where these functions are defined in math.h
but not implemented.

Originally committed as revision 21231 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2010-01-16 01:27:46 +00:00
parent a4be782cbd
commit 06cb7a1c8f
1 changed files with 8 additions and 16 deletions
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24
libavutil/internal.h
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@ -264,17 +264,13 @@ if ((y) < (x)) {\
}
#if !HAVE_EXP2
static av_always_inline av_const double exp2(double x)
{
return exp(x * 0.693147180559945);
}
#undef exp2
#define exp2(x) exp((x) * 0.693147180559945)
#endif /* HAVE_EXP2 */
#if !HAVE_EXP2F
static av_always_inline av_const float exp2f(float x)
{
return exp2(x);
}
#undef exp2f
#define exp2f(x) exp2(x)
#endif /* HAVE_EXP2F */
#if !HAVE_LLRINT
@ -285,17 +281,13 @@ static av_always_inline av_const long long llrint(double x)
#endif /* HAVE_LLRINT */
#if !HAVE_LOG2
static av_always_inline av_const double log2(double x)
{
return log(x) * 1.44269504088896340736;
}
#undef log2
#define log2(x) (log(x) * 1.44269504088896340736)
#endif /* HAVE_LOG2 */
#if !HAVE_LOG2F
static av_always_inline av_const float log2f(float x)
{
return log2(x);
}
#undef log2f
#define log2f(x) log2(x)
#endif /* HAVE_LOG2F */
#if !HAVE_LRINT