diff -r 741f3108a90f -r e997802b855c src/work/alpar/rw_nonref_map.cc
--- a/src/work/alpar/rw_nonref_map.cc	Sat Nov 13 12:24:01 2004 +0000
+++ b/src/work/alpar/rw_nonref_map.cc	Sat Nov 13 12:53:28 2004 +0000
@@ -23,15 +23,15 @@
     operator ValueType() const 
     {
       ValueType tmp;
-      std::cout << G.id(G.tail(e)) << "->"
-		<< G.id(G.head(e)) << ": ";
+      std::cout << G.id(G.source(e)) << "->"
+		<< G.id(G.target(e)) << ": ";
       std::cin  >> tmp;
       return tmp;
     }
     ValueType operator = (ValueType v) const
     {
-      std::cout << G.id(G.tail(e)) << "->"
-		<< G.id(G.head(e)) << ": " << v << '\n';
+      std::cout << G.id(G.source(e)) << "->"
+		<< G.id(G.target(e)) << ": " << v << '\n';
       return v;
     }
   };