diff -r c5e56125959a -r db3d437560f3 src/lemon/max_matching.h
--- a/src/lemon/max_matching.h	Mon Feb 21 18:51:11 2005 +0000
+++ b/src/lemon/max_matching.h	Mon Feb 21 19:03:52 2005 +0000
@@ -167,7 +167,7 @@
      for(NodeIt v(g); v!=INVALID; ++v) {
 	UndirEdge e=map[v];
 	if ( e!=INVALID )
-	  g.source(e) == v ? _mate.set(v,g.target(e)) : _mate.set(v,g.source(e)); 
+	  _mate.set(v,g.oppositeNode(v,e));
       } 
     }