From a5783dd396a1bb9de381b7247fbd22f05dec73ed Mon Sep 17 00:00:00 2001
From: beaglejoe <beaglejoe@30fe4595-0a0c-4342-8851-515496e4dcbd>
Date: Tue, 28 Jun 2016 20:02:29 +0000
Subject: [PATCH] Fix for #964 from DAP

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@6440 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: 92616d0eab9a05dec38e2978f7eb70fb2551199b
Former-commit-id: a7003f74d1617ef5670bea5dc8225cbe25c3ee63
---
 src/libs/learning/policy.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/libs/learning/policy.cpp b/src/libs/learning/policy.cpp
index e6cd604e9..cdc5de090 100644
--- a/src/libs/learning/policy.cpp
+++ b/src/libs/learning/policy.cpp
@@ -18,6 +18,12 @@
 #include "MathFunctions.h"
 #ifdef WIN32
 #include <float.h>
+#else
+// std::isnan should be available as of C++11 (201103L) but some compiler 
+// vendors set this even though support is incomplete
+#if __cplusplus>=201402L // compiler claims to be C++14 compliant
+#define isnan std::isnan
+#endif
 #endif // WIN32
 
 #include <portability.h>