[yoda-svn] yoda: issue warning when attempting to normalise empty histogram...

[YODA Mercurial]

details:   https://yoda.hepforge.org/hg/yoda/rev/d7ecc6e68430
branches:  release-1-7
changeset: 1469:d7ecc6e68430
user:      Christian Gutschow <chris.g at cern.ch>
date:      Fri Jun 29 16:28:17 2018 +0100
description:
issue warning when attempting to normalise empty histogram rather than throwing and error

diffs (11 lines):

--- a/include/YODA/Histo1D.h	Fri Jun 29 16:04:42 2018 +0100
+++ b/include/YODA/Histo1D.h	Fri Jun 29 16:28:17 2018 +0100
@@ -153,7 +153,7 @@
     /// be less than @a normto. This is probably what you want.
     void normalize(double normto=1.0, bool includeoverflows=true) {
       const double oldintegral = integral(includeoverflows);
-      if (oldintegral == 0) MSG_WARNING("Attempted to normalize a histogram with null area");
+      if (oldintegral == 0) std::cerr << "Attempted to normalize a histogram with null area" << std::endl;
       else                  scaleW(normto / oldintegral);
     }