diff options
Diffstat (limited to 'src/math/isnan.c')
| -rw-r--r-- | src/math/isnan.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/src/math/isnan.c b/src/math/isnan.c index 963b7021..e3e0160a 100644 --- a/src/math/isnan.c +++ b/src/math/isnan.c @@ -1,10 +1,5 @@ #include <math.h> - int __isnanf(float x); - int __isnand(double x); - int __isnanl(long double x); - -#define isnan(x) ((sizeof (x) == sizeof (float)) ? __isnanf(x) : \ - (sizeof (x) == sizeof (double)) ? __isnand(x) : __isnanl(x)) +#define isnan(x) (fpclassify(x) == FP_NAN) /* STDC(199901) |