diff -r 096d83158d41 -r 81b47fc5c444 lemon/bits/graph_adaptor_extender.h
--- a/lemon/bits/graph_adaptor_extender.h	Fri Mar 02 17:56:22 2007 +0000
+++ b/lemon/bits/graph_adaptor_extender.h	Fri Mar 02 18:04:28 2007 +0000
@@ -399,28 +399,28 @@
     ///
     /// Returns the base node (ie. the source in this case) of the iterator
     Node baseNode(const OutEdgeIt &e) const {
-      return Parent::source((Edge)e);
+      return Parent::source(static_cast<const Edge&>(e));
     }
     /// \brief Running node of the iterator
     ///
     /// Returns the running node (ie. the target in this case) of the
     /// iterator
     Node runningNode(const OutEdgeIt &e) const {
-      return Parent::target((Edge)e);
+      return Parent::target(static_cast<const Edge&>(e));
     }
 
     /// \brief Base node of the iterator
     ///
     /// Returns the base node (ie. the target in this case) of the iterator
     Node baseNode(const InEdgeIt &e) const {
-      return Parent::target((Edge)e);
+      return Parent::target(static_cast<const Edge&>(e));
     }
     /// \brief Running node of the iterator
     ///
     /// Returns the running node (ie. the source in this case) of the
     /// iterator
     Node runningNode(const InEdgeIt &e) const {
-      return Parent::source((Edge)e);
+      return Parent::source(static_cast<const Edge&>(e));
     }
 
     /// Base node of the iterator
@@ -651,28 +651,28 @@
     ///
     /// Returns the base node (ie. the source in this case) of the iterator
     Node baseNode(const OutEdgeIt &e) const {
-      return Parent::source((Edge&)e);
+      return Parent::source(static_cast<const Edge&>(e));
     }
     /// \brief Running node of the iterator
     ///
     /// Returns the running node (ie. the target in this case) of the
     /// iterator
     Node runningNode(const OutEdgeIt &e) const {
-      return Parent::target((Edge&)e);
+      return Parent::target(static_cast<const Edge&>(e));
     }
   
     /// \brief Base node of the iterator
     ///
     /// Returns the base node (ie. the target in this case) of the iterator
     Node baseNode(const InEdgeIt &e) const {
-      return Parent::target((Edge&)e);
+      return Parent::target(static_cast<const Edge&>(e));
     }
     /// \brief Running node of the iterator
     ///
     /// Returns the running node (ie. the source in this case) of the
     /// iterator
     Node runningNode(const InEdgeIt &e) const {
-      return Parent::source((Edge&)e);
+      return Parent::source(static_cast<const Edge&>(e));
     }
   
     class IncEdgeIt : public Parent::UEdge {