diff -r cce8ac91c08c -r 38ec4a930c05 lemon/grid_ugraph.h
--- a/lemon/grid_ugraph.h	Tue Jul 18 12:10:52 2006 +0000
+++ b/lemon/grid_ugraph.h	Tue Jul 18 13:29:59 2006 +0000
@@ -117,7 +117,7 @@
 
     class IndexError : public RuntimeError {
     public:
-      virtual const char* exceptionName() const {
+      virtual const char* what() const throw() {
         return "lemon::GridUGraph::IndexError";
       }  
     };