assert that wxRound() argument is in the supported range

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45720 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/math.h

@@ -107,6 +107,9 @@
 
     inline int wxRound(double x)
     {
+        wxASSERT_MSG( x > INT_MIN - 0.5 && x < INT_MAX + 0.5,
+                      _T("argument out of supported range") );
+
         #if defined(HAVE_ROUND)
             return int(round(x));
         #else