added default on Delaunay_triangulation_2.h

add Dummy_output_iterator.h

Packages/Triangulation_2/include/CGAL/Delaunay_triangulation_2.h

@@ -31,7 +31,10 @@
 
 CGAL_BEGIN_NAMESPACE
 
-template < class Gt, class Tds>
+template < class Gt, 
+           class Tds = Triangulation_data_structure_using_list_2 <
+                       Triangulation_vertex_base_2<Gt>,
+		       Triangulation_face_base_2<Gt> > >
 class Delaunay_triangulation_2 : public Triangulation_2<Gt,Tds>
 {
 public:

Packages/Triangulation_2/include/CGAL/Dummy_output_iterator.h

@@ -0,0 +1,49 @@
+// ======================================================================
+//
+// Copyright (c) 1997 The CGAL Consortium
+//
+// This software and related documentation is part of an INTERNAL release
+// of the Computational Geometry Algorithms Library (CGAL). It is not
+// intended for general use.
+//
+// ----------------------------------------------------------------------
+//
+// release       : 
+// release_date  : 
+//
+// file          : include/CGAL/Dummy_output_iterator.h
+// package       : Triangulation 
+// source        : $RCSfile$
+// revision      : $Revision$
+// revision_date : $Date$
+// author(s)     : Mariette Yvinec
+//
+// coordinator   : Mariette Yvinec  <Mariette Yvinec@sophia.inria.fr>
+//
+// ======================================================================
+
+#ifndef CGAL_DUMMY_OUTPUT_ITERATOR_H
+#define CGAL_DUMMY_OUTPUT_ITERATOR_H
+
+CGAL_BEGIN_NAMESPACE
+
+class Dummy_output_iterator
+{
+public:
+  Dummy_output_iterator() {}
+  Dummy_output_iterator( const Dummy_output_iterator&) {}
+
+  template<class T>
+  Dummy_output_iterator& operator=(const T&)    {return  *this; }
+
+  Dummy_output_iterator&  operator++() {return  *this;}
+  Dummy_output_iterator&  operator++(int) {return  *this;}
+  
+ 
+   Dummy_output_iterator&  operator*() { return *this ;} 
+};
+
+
+CGAL_END_NAMESPACE
+#endif //CGAL_DUMMY_OUTPUT_ITERATOR_H
+