isnanl.c « math « mingwex « mingw « winsup - cygwin.com/git/newlib-cygwin.git - Unnamed repository; edit this file 'description' to name the repository.

Welcome to mirror list, hosted at ThFree Co, Russian Federation.

isnanl.c « math « mingwex « mingw « winsup - cygwin.com/git/newlib-cygwin.git - Unnamed repository; edit this file 'description' to name the repository.

index : cygwin.com/git/newlib-cygwin.git

Unnamed repository; edit this file 'description' to name the repository.

root

summary refs log tree commit diff

path: root/winsup/mingw/mingwex/math/isnanl.c

blob: 86d0088b499ec4655d6f104e12d9c329a689f019 (plain)

#include <math.h>

int
__isnanl (long double _x)
{
  unsigned short _sw;
  __asm__ ("fxam;"
	   "fstsw %%ax": "=a" (_sw) : "t" (_x));
  return (_sw & (FP_NAN | FP_NORMAL | FP_INFINITE | FP_ZERO | FP_SUBNORMAL))
    == FP_NAN;
}

int __attribute__ ((alias ("__isnanl"))) isnanl (long double);