Revert "Remove C++11 call to isnormal"

This reverts commit a845c6a04ecfeedc8eced5f4051e06ee88c59e90.

diff --git a/tools/clitkImageUncertainty.cxx b/tools/clitkImageUncertainty.cxx
index 9240bd8278161746245374a99c79e47d32254ef6..bf5759f616df7ecfcbb9180cdc3e6e1336f0753f 100644 (file)
--- a/tools/clitkImageUncertainty.cxx
+++ b/tools/clitkImageUncertainty.cxx
@@ -39,7 +39,7 @@
 #include "itkImageRegionConstIterator.h"
 #include "itkImageRegionIterator.h"
 
-#include <limits>
+#include <cmath> // for isfinite
 
 //====================================================================
 int main(int argc, char * argv[]) {
@@ -79,7 +79,7 @@ int main(int argc, char * argv[]) {
        double squared = pii.Get();
        double mean = pi.Get();
        double uncert = sqrt((NumberOfEvents*squared - mean*mean) / ((NumberOfEvents-1)*(mean*mean)));
-        if (uncert != uncert || uncert == std::numeric_limits<double>::infinity() || uncert == -std::numeric_limits<double>::infinity()) uncert = 1.;
+       if (!std::isnormal(uncert)) uncert = 1.;
        po.Set(uncert);
        ++pi;
        ++pii;