/** * 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 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);