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lib/libm: Remove implementation of log2f, use MP_NEED_LOG2 instead.

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This commit is contained in:
Damien George
2017-10-04 21:48:14 +11:00
parent d8d4e4dfbe
commit 81a06d2c9c
2 changed files with 3 additions and 10 deletions
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10
lib/libm/math.c
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@@ -48,16 +48,6 @@ float copysignf(float x, float y) {
}
#endif
// some compilers define log2f in terms of logf
#ifdef log2f
#undef log2f
#endif
// some compilers have _M_LN2 defined in math.h, some don't
#ifndef _M_LN2
#define _M_LN2 (0.69314718055994530942)
#endif
float log2f(float x) { return logf(x) / (float)_M_LN2; }
static const float _M_LN10 = 2.30258509299404; // 0x40135d8e
float log10f(float x) { return logf(x) / (float)_M_LN10; }