| /** | |
| * 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> | |
| int | |
| __isnanf (float _x) | |
| { | |
| #if defined(__x86_64__) || defined(_AMD64_) || defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_) | |
| __mingw_flt_type_t hlp; | |
| int i; | |
| hlp.x = _x; | |
| i = hlp.val & 0x7fffffff; | |
| i = 0x7f800000 - i; | |
| return (int) (((unsigned int) i) >> 31); | |
| #elif defined(__i386__) || defined(_X86_) | |
| unsigned short _sw; | |
| __asm__ __volatile__ ("fxam;" | |
| "fstsw %%ax": "=a" (_sw) : "t" (_x) ); | |
| return (_sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL)) | |
| == FP_NAN; | |
| #endif | |
| } | |
| int __attribute__ ((alias ("__isnanf"))) isnanf (float); |