1.1 --- a/src/work/alpar/emptygraph.h	Fri Mar 12 15:42:51 2004 +0000
     1.2 +++ b/src/work/alpar/emptygraph.h	Fri Mar 12 16:13:44 2004 +0000
     1.3 @@ -128,7 +128,7 @@
     1.4  //     EdgeIt getNext(EdgeIt) const {}
     1.5  
     1.6      /// Go to the next node.
     1.7 -    Node &next(Node &i) const { return i;}
     1.8 +    NodeIt &next(NodeIt &i) const { return i;}
     1.9      /// Go to the next incoming edge.
    1.10      InEdgeIt &next(InEdgeIt &i) const { return i;}
    1.11      /// Go to the next outgoing edge.