1.1 --- a/src/lemon/extendable_graph_extender.h	Wed Nov 10 21:59:59 2004 +0000
     1.2 +++ b/src/lemon/extendable_graph_extender.h	Thu Nov 11 09:31:55 2004 +0000
     1.3 @@ -17,13 +17,13 @@
     1.4  
     1.5      Node addNode() {
     1.6        Node node = Parent::addNode();
     1.7 -      Parent::getNodeObserverRegistry().add(node);
     1.8 +      Parent::getObserverRegistry(Node()).add(node);
     1.9        return node;
    1.10      }
    1.11      
    1.12      Edge addEdge(const Node& from, const Node& to) {
    1.13        Edge edge = Parent::addEdge(from, to);
    1.14 -      Parent::getEdgeObserverRegistry().add(edge);
    1.15 +      Parent::getObserverRegistry(Edge()).add(edge);
    1.16        return edge;
    1.17      }
    1.18