LevelIteratorFactory is friend

[[Imported from SVN: r1064]]

grid/uggrid/uggridleveliterator.hh

@@ -14,6 +14,8 @@ namespace Dune {
      Enables iteration over all entities of a given codimension and level of a grid.
    */
 
+  template <int codim, int dim, int dimworld, PartitionIteratorType PiType>
+  class LevelIteratorFactory;
 
   template<int codim, int dim, int dimworld, PartitionIteratorType pitype>
   class UGGridLevelIterator :
@@ -24,6 +26,10 @@ namespace Dune {
     friend class UGGridEntity<1,dim,dimworld>;
     friend class UGGridEntity<0,dim,dimworld>;
     friend class UGGrid < dim , dimworld >;
+
+    friend class LevelIteratorFactory<2,2,2,All_Partition>;
+    friend class LevelIteratorFactory<0,2,2,All_Partition>;
+
   public:
 
     //friend class UGGrid<dim,dimworld>;