diff options
Diffstat (limited to 'src/math/__fpclassify.c')
| -rw-r--r-- | src/math/__fpclassify.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/src/math/__fpclassify.c b/src/math/__fpclassify.c index 16051100..c9dd0275 100644 --- a/src/math/__fpclassify.c +++ b/src/math/__fpclassify.c @@ -1,14 +1,10 @@ -#include <stdint.h> -#include <math.h> +#include "libm.h" -int __fpclassify(double __x) +int __fpclassify(double x) { - union { - double __d; - __uint64_t __i; - } __y = { __x }; - int __ee = __y.__i>>52 & 0x7ff; - if (!__ee) return __y.__i<<1 ? FP_SUBNORMAL : FP_ZERO; - if (__ee==0x7ff) return __y.__i<<12 ? FP_NAN : FP_INFINITE; + union dshape u = { x }; + int e = u.bits>>52 & 0x7ff; + if (!e) return u.bits<<1 ? FP_SUBNORMAL : FP_ZERO; + if (e==0x7ff) return u.bits<<12 ? FP_NAN : FP_INFINITE; return FP_NORMAL; } |