boundaryEntity() is const

[[Imported from SVN: r1790]]

grid/uggrid/ugintersectionit.cc

@@ -229,9 +229,9 @@ numberInNeighbor () const
 
 template<class GridImp>
 inline
-UGGridBoundaryEntity<GridImp>&
+const UGGridBoundaryEntity<GridImp>&
 UGGridIntersectionIterator<GridImp>::
-boundaryEntity ()
+boundaryEntity () const
 {
   return boundaryEntity_;
 }

grid/uggrid/ugintersectionit.hh

@@ -65,7 +65,7 @@ namespace Dune {
     bool neighbor () const;
 
     //! return information about the Boundary
-    UGGridBoundaryEntity<GridImp> & boundaryEntity ();
+    const UGGridBoundaryEntity<GridImp> & boundaryEntity () const;
 
     //! intersection of codimension 1 of this neighbor with element where
     //! iteration started.