added check for Nan

1991-03-19 16:51:28 +00:00 · 1991-03-19 16:51:28 +00:00 · dae6de87e0
commit dae6de87e0
parent 5b9fe61434
1 changed files with 2 additions and 0 deletions
--- a/lang/cem/libcc.ansi/headers/math.h
+++ b/lang/cem/libcc.ansi/headers/math.h
@ -9,6 +9,8 @@
 double __huge_val(void);	/* may be infinity */
 #define	HUGE_VAL	(__huge_val())

+int	__IsNan(double d);	/* test for Not A Number */
+
 double	acos(double _x);
 double	asin(double _x);
 double	atan(double _x);