1.1 --- a/lemon/hypercube_graph.h	Tue Sep 29 10:39:20 2009 +0200
     1.2 +++ b/lemon/hypercube_graph.h	Tue Sep 29 13:03:34 2009 +0200
     1.3 @@ -262,7 +262,7 @@
     1.4        return arc._id >> _dim;
     1.5      }
     1.6  
     1.7 -    int index(Node node) const {
     1.8 +    static int index(Node node) {
     1.9        return node._id;
    1.10      }
    1.11  
    1.12 @@ -337,7 +337,7 @@
    1.13      ///
    1.14      /// Gives back the index of the given node.
    1.15      /// The lower bits of the integer describes the node.
    1.16 -    int index(Node node) const {
    1.17 +    static int index(Node node) {
    1.18        return Parent::index(node);
    1.19      }
    1.20