diff -r ca63ec3424d8 -r bd01c5a3f989 src/lemon/clearable_graph_extender.h
--- a/src/lemon/clearable_graph_extender.h	Thu Dec 16 12:15:02 2004 +0000
+++ b/src/lemon/clearable_graph_extender.h	Thu Dec 16 12:26:57 2004 +0000
@@ -18,8 +18,8 @@
     typedef typename Parent::Edge Edge;
 
     void clear() {
-      Parent::getObserverRegistry(Node()).clear();
-      Parent::getObserverRegistry(Edge()).clear();
+      Parent::getNotifier(Node()).clear();
+      Parent::getNotifier(Edge()).clear();
       Parent::clear();
     }
 
@@ -36,9 +36,9 @@
     typedef typename Parent::Edge Edge;
 
     void clear() {
-      Parent::getObserverRegistry(Node()).clear();
-      Parent::getObserverRegistry(UndirEdge()).clear();
-      Parent::getObserverRegistry(Edge()).clear();
+      Parent::getNotifier(Node()).clear();
+      Parent::getNotifier(UndirEdge()).clear();
+      Parent::getNotifier(Edge()).clear();
       Parent::clear();
     }