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Use native float math functions for MSVC12

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`double` surrogates are slow (e.g. pow is 2x slower than powf), and MSVC12
supports fp-math functions from C99.
This commit is contained in:
Sv. Lockal
2014-09-30 13:27:56 +04:00
parent ff53b046f2
commit 5ecbd5c871
1 changed files with 3 additions and 3 deletions
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6
source/blender/blenlib/BLI_math_base.h
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@@ -83,8 +83,8 @@ static const int NAN_INT = 0x7FC00000;
# define NAN_FLT (*((float *)(&NAN_INT)))
#endif
/* do not redefine functions from C99 or POSIX.1-2001 */
#if !(defined(_ISOC99_SOURCE) || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L))
/* do not redefine functions from C99, POSIX.1-2001 or MSVC12 (partial C99) */
#if !(defined(_ISOC99_SOURCE) || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) || (defined(_MSC_VER) && _MSC_VER >= 1800))
#ifndef sqrtf
#define sqrtf(a) ((float)sqrt(a))
@@ -138,7 +138,7 @@ static const int NAN_INT = 0x7FC00000;
#define copysignf(a, b) ((float)copysign(a, b))
#endif
#endif /* C99 or POSIX.1-2001 */
#endif /* C99, POSIX.1-2001 or MSVC12 (partial C99) */
#ifdef WIN32
# if defined(_MSC_VER)