From f654b033b8b2982968e174e19be19a5ac461c107 Mon Sep 17 00:00:00 2001 From: Jakob Kaivo Date: Sun, 3 Mar 2019 21:22:28 -0500 Subject: implement in terms of fpclassify() --- src/math/isnan.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'src/math/isnan.c') 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 - 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) -- cgit v1.2.1