diff options
| -rw-r--r-- | win32/include/math.h | 33 |
1 files changed, 1 insertions, 32 deletions
diff --git a/win32/include/math.h b/win32/include/math.h index 251d3f7..d923f17 100644 --- a/win32/include/math.h +++ b/win32/include/math.h @@ -333,38 +333,7 @@ extern "C" { /* 7.12.3.4 */ /* We don't need to worry about trucation here: A NaN stays a NaN. */ - - __CRT_INLINE int __cdecl __isnan (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; - } - - __CRT_INLINE int __cdecl __isnanf (float _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; - } - - __CRT_INLINE int __cdecl __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; - } - - -#define isnan(x) (sizeof (x) == sizeof (float) ? __isnanf (x) \ - : sizeof (x) == sizeof (double) ? __isnan (x) \ - : __isnanl (x)) +#define isnan(x) (fpclassify(x) == FP_NAN) /* 7.12.3.5 */ #define isnormal(x) (fpclassify(x) == FP_NORMAL) |