From f25a04e6a3db604f52d655fa98b99ad8f5343015 Mon Sep 17 00:00:00 2001
From: green349 <green349@purdue.edu>
Date: Wed, 11 Apr 2018 16:15:31 -0400
Subject: Add support for isnan to compile with GCC-4.8.2

---
 src/cuda-sim/cuda-math.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/cuda-sim/cuda-math.h')

diff --git a/src/cuda-sim/cuda-math.h b/src/cuda-sim/cuda-math.h
index 4721e8a..f88c526 100644
--- a/src/cuda-sim/cuda-math.h
+++ b/src/cuda-sim/cuda-math.h
@@ -67,6 +67,8 @@
 #ifndef CUDA_MATH
 #define CUDA_MATH
 
+#include <cmath>
+
 // cuda math implementations
 #undef max
 #undef min
@@ -321,7 +323,7 @@ float __internal_accurate_fdividef(float a, float b)
 float __saturatef(float a)
 {
    float b; 
-   if (isnan(a)) b = 0.0f; 
+   if (std::isnan(a)) b = 0.0f; 
    else if (a >= 1.0f) b = 1.0f;
    else if (a <= 0.0f) b = 0.0f; 
    else b = a; 
-- 
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