text: 
  void test_optimal_convex()
  {
     Polygon_2              polygon;
     std::list<Polygon_2>   partition_polys;
  
     polygon.erase(polygon.vertices_begin(), polygon.vertices_end());
     make_monotone_convex(polygon);
     CGAL::optimal_convex_partition_2(polygon.vertices_begin(),
                                      polygon.vertices_end(),
                                      std::back_inserter(partition_polys));
  
     assert(partition_polys.size() == 1 &&
             partition_polys.front().size() == polygon.size());
     assert(CGAL::is_convex_2(partition_polys.front().vertices_begin(),
                              partition_polys.front().vertices_end()));
  
     partition_polys.clear();
     polygon.erase(polygon.vertices_begin(), polygon.vertices_end());
     make_convex_w_collinear_points(polygon);
     CGAL::optimal_convex_partition_2(polygon.vertices_begin(),
                                      polygon.vertices_end(),
                                      std::back_inserter(partition_polys));
  
     partition_polys.clear();
     polygon.erase(polygon.vertices_begin(), polygon.vertices_end());
     make_nonconvex_w_collinear_points(polygon);
     CGAL::optimal_convex_partition_2(polygon.vertices_begin(),
                                     polygon.vertices_end(),
                                     std::back_inserter(partition_polys));
  
     partition_polys.clear();
     polygon.erase(polygon.vertices_begin(), polygon.vertices_end());
     make_nonconvex(polygon);
     CGAL::optimal_convex_partition_2(polygon.vertices_begin(),
                                      polygon.vertices_end(),
                                      std::back_inserter(partition_polys));
  /*
     partition_polys.clear();
     polygon.erase(polygon.vertices_begin(), polygon.vertices_end());
     make_hilbert_polygon(polygon);
     CGAL::optimal_convex_partition_2(polygon.vertices_begin(),
                                      polygon.vertices_end(),
                                      std::back_inserter(partition_polys));
  */
  }
  