diff -r bc86b64f958e -r b16a10926781 src/lemon/list_graph.h
--- a/src/lemon/list_graph.h	Sat Oct 30 16:30:12 2004 +0000
+++ b/src/lemon/list_graph.h	Sat Oct 30 18:30:29 2004 +0000
@@ -38,6 +38,7 @@
 
   class ListGraphBase {
 
+  protected:
     struct NodeT {
       int first_in,first_out;
       int prev, next;
@@ -100,11 +101,6 @@
 	first_free_node(-1), edges(), first_free_edge(-1) {}
 
     
-    ///Using this it possible to avoid the superfluous memory allocation.
-    ///\todo more docs...
-    ///\todo It should be defined in ListGraph.
-    void reserveEdge(int n) { edges.reserve(n); };
-    
     /// Maximum node ID.
     
     /// Maximum node ID.
@@ -277,6 +273,32 @@
       first_node = first_free_node = first_free_edge = -1;
     }
 
+  protected:
+    void _moveHead(Edge e, Node n) 
+    {
+      if(edges[e.id].next_in != -1)
+	edges[edges[e.id].next_in].prev_in = edges[e.id].prev_in;
+      if(edges[e.id].prev_in != -1)
+	edges[edges[e.id].prev_in].next_in = edges[e.id].next_in;
+      else nodes[edges[e.id].head].first_in = edges[e.id].next_in;
+      edges[e.id].head = n.id;
+      edges[e.id].prev_in = -1;
+      edges[e.id].next_in = nodes[n.id].first_in;
+      nodes[n.id].first_in = e.id;
+    }
+    void _moveTail(Edge e, Node n) 
+    {
+      if(edges[e.id].next_out != -1)
+	edges[edges[e.id].next_out].prev_out = edges[e.id].prev_out;
+      if(edges[e.id].prev_out != -1)
+	edges[edges[e.id].prev_out].next_out = edges[e.id].next_out;
+      else nodes[edges[e.id].tail].first_out = edges[e.id].next_out;
+      edges[e.id].tail = n.id;
+      edges[e.id].prev_out = -1;
+      edges[e.id].next_out = nodes[n.id].first_out;
+      nodes[n.id].first_out = e.id;
+    }
+
   };
 
   typedef AlterableGraphExtender<ListGraphBase> AlterableListGraphBase;
@@ -305,35 +327,19 @@
 
     /// Moves the head of \c e to \c n
     ///
-    void moveHead(Edge e, Node n) 
-    {
-      if(edges[e.n].next_in != -1)
-	edges[edges[e.n].next_in].prev_in = edges[e.n].prev_in;
-      if(edges[e.n].prev_in != -1)
-	edges[edges[e.n].prev_in].next_in = edges[e.n].next_in;
-      else nodes[edges[e.n].head].first_in = edges[e.n].next_in;
-      edges[e.n].head = n.n;
-      edges[e.n].prev_in = -1;
-      edges[e.n].next_in = nodes[n.n].first_in;
-      nodes[n.n].first_in = e.n;
-    }
+    void moveHead(Edge e, Node n) { _moveHead(e,n); }
     /// Moves the tail of \c e to \c n
 
     /// Moves the tail of \c e to \c n
     ///
-    void moveTail(Edge e, Node n) 
-    {
-      if(edges[e.n].next_out != -1)
-	edges[edges[e.n].next_out].prev_out = edges[e.n].prev_out;
-      if(edges[e.n].prev_out != -1)
-	edges[edges[e.n].prev_out].next_out = edges[e.n].next_out;
-      else nodes[edges[e.n].tail].first_out = edges[e.n].next_out;
-      edges[e.n].tail = n.n;
-      edges[e.n].prev_out = -1;
-      edges[e.n].next_out = nodes[n.n].first_out;
-      nodes[n.n].first_out = e.n;
-    }
-  }
+    void moveTail(Edge e, Node n) { _moveTail(e,n); }
+
+    ///Using this it possible to avoid the superfluous memory allocation.
+    ///\todo more docs...
+    void reserveEdge(int n) { edges.reserve(n); };
+    
+  };
+  
   /// @}  
 } //namespace lemon