zig/lib/libc/mingw/math/arm64/log2.c
Andrew Kelley 49d1a4c562 move lib dirs to lib subdir
also start prefering NtDll API. so far:
 * NtQueryInformationFile
 * NtClose

adds a performance workaround for windows unicode conversion. but that
should probably be removed before merging
2019-07-15 17:54:50 -04:00

27 lines
536 B
C

/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER.PD within this package.
*/
#include <math.h>
double log2(double x)
{
return log(x) / 0.69314718246459960938;
}
float log2f(float x)
{
return logf(x) / 0.69314718246459960938f;
}
long double log2l(long double x)
{
#if defined(__aarch64__) || defined(_ARM64_)
return log2(x);
#else
#error Not supported on your platform yet
#endif
}