From 369c41ba58307ed13e4d7c954c4ce50ff750f714 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@alientrap.org>
Date: Mon, 24 Jan 2011 07:44:54 +0100
Subject: [PATCH] optimize isnan()

---
 qcsrc/warpzonelib/mathlib.qc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/qcsrc/warpzonelib/mathlib.qc b/qcsrc/warpzonelib/mathlib.qc
index b460a063d..42262102e 100644
--- a/qcsrc/warpzonelib/mathlib.qc
+++ b/qcsrc/warpzonelib/mathlib.qc
@@ -18,7 +18,9 @@ int isinf(float x)
 }
 int isnan(float x)
 {
-	return !(x + x == x + x);
+	float y;
+	y = x;
+	return (x != y);
 }
 int isnormal(float x)
 {
-- 
2.39.2