diff -r 3996d2098090 -r 29961fa390a3 src/lemon/concept/graph_component.h
--- a/src/lemon/concept/graph_component.h	Sat Feb 19 21:11:20 2005 +0000
+++ b/src/lemon/concept/graph_component.h	Sun Feb 20 01:02:07 2005 +0000
@@ -625,11 +625,19 @@
 	  ++(++it1);
 	  Edge e = it1;
 	  e = it2;
+
+	  const_constraits();
 	}
 
-	Edge& edge;
-	Node& node;
-	Graph& graph;
+	void const_constraits() {
+	  Node n = graph.baseNode(it);
+	  n = graph.runningNode(it);
+	}
+
+	Edge edge;
+	Node node;
+	Graph graph;
+	_GraphIncIterator it;
       };
     };