1.1 --- a/src/lemon/alteration_observer_registry.h	Thu Nov 25 14:48:24 2004 +0000
     1.2 +++ b/src/lemon/alteration_observer_registry.h	Sun Nov 28 16:30:10 2004 +0000
     1.3 @@ -364,7 +364,10 @@
     1.4  
     1.5      mutable UndirEdgeObserverRegistry undir_edge_observers;
     1.6  
     1.7 -    UndirEdgeObserverRegistry& getObserverRegistry(UndirEdge = INVALID) const {
     1.8 +  public:
     1.9 +
    1.10 +    using Parent::getObserverRegistry;
    1.11 +    UndirEdgeObserverRegistry& getObserverRegistry(UndirEdge) const {
    1.12        return undir_edge_observers;
    1.13      }
    1.14