Add more floating-point classification macros.

2021-03-09 00:08:04 -06:00 · 2021-03-09 00:08:04 -06:00 · a3006e46b1
parent 17a7fc5487
commit a3006e46b1
1 changed files with 5 additions and 0 deletions
--- a/ORCACDefs/math.h
+++ b/ORCACDefs/math.h
@ -39,6 +39,11 @@ int __fpclassifyl(long double);
   double: __fpclassifyd, \
   long double: __fpclassifyl)(x)

+#define isfinite(x) (((fpclassify(x) + 1) & 0xF0) == 0)
+#define isinf(x)    (fpclassify(x) == FP_INFINITE)
+#define isnan(x)    (fpclassify((long double)(x)) == FP_NAN)
+#define isnormal(x) (fpclassify(x) == FP_NORMAL)
+
 #ifndef __KeepNamespacePure__
   #define arctan(x) atan(x)        
 #endif