| /** |
| * 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. |
| */ |
| #define __CRT__NO_INLINE |
| #include <math.h> |
| |
| int __fpclassifyf (float _x) |
| { |
| #if defined(__x86_64__) || defined(_AMD64_) || defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_) |
| __mingw_flt_type_t hlp; |
| |
| hlp.x = _x; |
| hlp.val &= 0x7fffffff; |
| if (hlp.val == 0) |
| return FP_ZERO; |
| if (hlp.val < 0x800000) |
| return FP_SUBNORMAL; |
| if (hlp.val >= 0x7f800000) |
| return (hlp.val > 0x7f800000 ? FP_NAN : FP_INFINITE); |
| return FP_NORMAL; |
| #elif defined(__i386__) || defined(_X86_) |
| unsigned short sw; |
| __asm__ __volatile__ ( |
| "fxam; fstsw %%ax;" |
| : "=a" (sw) |
| : "t" (_x) |
| ); |
| return sw & (FP_NAN | FP_NORMAL | FP_ZERO); |
| #endif |
| } |
