From 2e493d9e754244c8516123ee29812411900b7871 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 25 Oct 2004 18:46:05 +0000
Subject: Patch to support MSVC, contributed by  Morten Ofstad

llvm-svn: 17219
---
 llvm/lib/Support/IsNAN.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/Support/IsNAN.cpp')

diff --git a/llvm/lib/Support/IsNAN.cpp b/llvm/lib/Support/IsNAN.cpp
index 75c813f41aa..f7bb4e3d8e3 100644
--- a/llvm/lib/Support/IsNAN.cpp
+++ b/llvm/lib/Support/IsNAN.cpp
@@ -19,6 +19,9 @@
 #elif HAVE_STD_ISNAN_IN_CMATH
 # include <cmath>
 using std::isnan;
+#elif defined(_MSC_VER)
+#include <float.h>
+#define isnan _isnan
 #else
 # error "Don't know how to get isnan()"
 #endif
-- 
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