From f892731b3f8a6d621dee57993a5d4438515e3965 Mon Sep 17 00:00:00 2001
From: Andrew Johnson <anj@anl.gov>
Date: Fri, 29 Jun 2018 15:03:45 -0500
Subject: [PATCH] Fix epicsCalcTest for gcc 7.1.0 on minGW

Another case where the compile-time evaluation returns +1
but at run-time isnan() returns -1.
---
 src/libCom/test/epicsCalcTest.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libCom/test/epicsCalcTest.cpp b/src/libCom/test/epicsCalcTest.cpp
index 1ebc0c578..2492c95ba 100644
--- a/src/libCom/test/epicsCalcTest.cpp
+++ b/src/libCom/test/epicsCalcTest.cpp
@@ -391,7 +391,7 @@ MAIN(epicsCalcTest)
     testExpr(isnan(0.));
     testExpr(isnan(Inf));
     testExpr(isnan(-Inf));
-    testExpr(isnan(NaN));
+    testExpr(!!isnan(NaN));     // As above
     testCalc("isnan(0,1,2)", 0);
     testCalc("isnan(0,1,NaN)", 1);
     testCalc("isnan(0,NaN,2)", 1);