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util: Add log2() definition for MSC.

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This commit is contained in:
Michal Krol 2008-11-12 17:14:07 +01:00
parent 1bfe7c36ba
commit 50357ad351
1 changed files with 5 additions and 0 deletions
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5
src/gallium/auxiliary/util/u_math.h
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@ -161,6 +161,11 @@ static INLINE float logf( float f )
return (float) log( (double) f );
}
static INLINE double log2( double x )
{
return log( x ) / log( 2.0 );
}
#else
/* Work-around an extra semi-colon in VS 2005 logf definition */
#ifdef logf