1.1 --- a/src/lemon/dimacs.h	Sat Nov 13 12:24:01 2004 +0000
     1.2 +++ b/src/lemon/dimacs.h	Sat Nov 13 12:53:28 2004 +0000
     1.3 @@ -208,7 +208,7 @@
     1.4      os << "p mat " << g.nodeNum() << " " << g.edgeNum() << std::endl;
     1.5  
     1.6      for(EdgeIt e(g); e!=INVALID; ++e) {
     1.7 -      os << "a " << nodes[g.tail(e)] << " " << nodes[g.head(e)] << std::endl; 
     1.8 +      os << "a " << nodes[g.source(e)] << " " << nodes[g.target(e)] << std::endl; 
     1.9      }
    1.10  
    1.11    }