From 05d8622ea9816bcf3774a9a5b9f19486cd9ec447 Mon Sep 17 00:00:00 2001
From: Kyle Sanderson <kyle.leet@gmail.com>
Date: Wed, 28 May 2014 18:05:55 -0700
Subject: [PATCH] Quell isNaN MSVC performance warning.

---
 public/amtl/am-utility.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/amtl/am-utility.h b/public/amtl/am-utility.h
index d657fac1..55b182ac 100644
--- a/public/amtl/am-utility.h
+++ b/public/amtl/am-utility.h
@@ -224,7 +224,7 @@ static inline bool
 IsNaN(double v)
 {
 #ifdef _MSC_VER
-  return _isnan(v);
+  return !!_isnan(v);
 #else
   return isnan(v);
 #endif