From 315339861d6461ce138518ddc30ee287582ff4cf Mon Sep 17 00:00:00 2001
From: "Christopher D. McMurrough" <christopher.mcmurrough@gmail.com>
Date: Sun, 21 Feb 2016 10:47:04 -0600
Subject: [PATCH] added type cast to fix ambiguous type compilation error in
 VS12

---
 test/io/test_buffers.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/io/test_buffers.cpp b/test/io/test_buffers.cpp
index 01445d41aa2..89eb32406ea 100644
--- a/test/io/test_buffers.cpp
+++ b/test/io/test_buffers.cpp
@@ -68,8 +68,8 @@ class BuffersTest : public ::testing::Test
         memcpy (d.data (), dptr, buffer.size () * sizeof (T));
         buffer.push (d);
         for (size_t j = 0; j < buffer.size (); ++j)
-          if (isnan (eptr[j]))
-            EXPECT_TRUE (isnan (buffer[j]));
+          if (isnan ((double) eptr[j]))
+            EXPECT_TRUE (isnan ((double) buffer[j]));
           else
             EXPECT_EQ (eptr[j], buffer[j]);
         dptr += buffer.size ();