| /** |
| * 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 |
| } |
