From 7e8422d810acedfb33eaf7d27ac095015a3b8381 Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Tue, 19 Mar 1991 16:51:28 +0000
Subject: [PATCH] added check for Nan

---
 lang/cem/libcc.ansi/headers/math.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lang/cem/libcc.ansi/headers/math.h b/lang/cem/libcc.ansi/headers/math.h
index a63b71362..69af58222 100644
--- 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);
-- 
2.34.1