diff -r b9a7f4115abe -r 9273fe7d850c lemon/concepts/heap.h
--- a/lemon/concepts/heap.h	Thu Oct 26 13:35:35 2006 +0000
+++ b/lemon/concepts/heap.h	Thu Oct 26 14:20:17 2006 +0000
@@ -36,9 +36,12 @@
     ///
     /// A concept structure describes the main interface of heaps.
     ///
-    template <typename Item, typename Prio, typename ItemIntMap>
+    template <typename Prio, typename ItemIntMap>
     class Heap {
     public:
+
+      ///\brief Type of the items stored in the heap.
+      typedef typename ItemIntMap::Key  Item;
   
 
       /// \brief Type to represent the items states.