From 69eff066910a8b419fab40084364717a745580eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Mon, 13 Jan 2014 19:08:30 +0100
Subject: [PATCH] add a default constructor to Primitive_vertex to make it work
 with Lazy

also add a test showing the issue
---
 .../CGAL/Partition_2/Partitioned_polygon_2.h  |  6 +++
 ...e_approx_convex_partition_2_test_EPECK.cpp | 49 +++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 Partition_2/test/Partition_2/greene_approx_convex_partition_2_test_EPECK.cpp

diff --git a/Partition_2/include/CGAL/Partition_2/Partitioned_polygon_2.h b/Partition_2/include/CGAL/Partition_2/Partitioned_polygon_2.h
index 4c20eaed07a..24f5f17dacc 100644
--- a/Partition_2/include/CGAL/Partition_2/Partitioned_polygon_2.h
+++ b/Partition_2/include/CGAL/Partition_2/Partitioned_polygon_2.h
@@ -305,6 +305,12 @@ class Partition_vertex : public Traits_::Point_2
     typedef std::list<Circulator>                         Diagonal_list;
     typedef typename Diagonal_list::iterator              Diagonal_iterator;
 
+  //default constructor added for EPECK
+  Partition_vertex(): Base_point()
+  {
+    current_diag = diag_endpoint_refs.end() ;
+  }
+
   Partition_vertex(Base_point p)
     : Base_point(p) 
   { 
diff --git a/Partition_2/test/Partition_2/greene_approx_convex_partition_2_test_EPECK.cpp b/Partition_2/test/Partition_2/greene_approx_convex_partition_2_test_EPECK.cpp
new file mode 100644
index 00000000000..c290abc3811
--- /dev/null
+++ b/Partition_2/test/Partition_2/greene_approx_convex_partition_2_test_EPECK.cpp
@@ -0,0 +1,49 @@
+// ============================================================================
+//
+// Copyright (c) 2000 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       : $CGAL_Revision $
+// release_date  : $CGAL_Date $
+//
+// file          : include/CGAL/greene_approx_convex_partiton_2_test_EPECK.cpp
+// package       : $CGAL_Package: Partition_2 1.0 (27 Jul 2000) $
+// chapter       : Planar Polygon Partitioning
+//
+// revision      : $Id$
+// revision_date : $Date$
+//
+// author(s)     : Susan Hert <hert@mpi-sb.mpg.de>
+// maintainer    : Susan Hert <hert@mpi-sb.mpg.de>
+//
+// coordinator   : MPI (Susan Hert <hert@mpi-sb.mpg.de>)
+//
+// implementation: Testing of convex partitioning functions
+// ============================================================================
+
+#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
+#include <CGAL/Polygon_2.h>
+#include <CGAL/partition_2.h>
+#include <list>
+#include <cassert>
+
+typedef CGAL::Exact_predicates_exact_constructions_kernel K;
+typedef K::Point_2                    Point_2;
+typedef std::list<Point_2>            Container;
+typedef CGAL::Polygon_2<K, Container> Polygon_2;
+
+#include "convex_test_polys.h"
+
+#include "test_greene_approx_convex.h"
+
+int main(void)
+{
+   test_greene_approx_convex();
+
+   return 0;
+}