gcc/testsuite/g++.dg/torture/pr47313.C

   1 // { dg-do compile }
   2 // { dg-additional-options "-Wno-return-type" }
   3
   4 namespace internal {
   5     template < class DSC, bool Const >   struct CC_iterator   {
   6         typedef CC_iterator iterator;
   7         typedef typename DSC::value_type value_type;
   8         typedef const value_type* pointer;
   9         CC_iterator ()     ;
  10         CC_iterator (const iterator &it)     {
  11         }
  12         pointer p;
  13         pointer operator->() const ;
  14     };
  15 }
  16 template < class T > struct Compact_container {
  17     typedef Compact_container <T> Self;
  18     typedef T value_type;
  19     typedef internal::CC_iterator<Self, false> iterator;
  20 };
  21 template < typename TDS = void > struct Periodic_3_triangulation_ds_cell_base_3 {
  22     typedef typename TDS::Vertex_handle Vertex_handle;
  23     const Vertex_handle& vertex(int i) const   {
  24     }
  25 };
  26 struct Triangulation_data_structure_3    {
  27     typedef Triangulation_data_structure_3 Tds;
  28     typedef Periodic_3_triangulation_ds_cell_base_3<Tds> Cell;
  29     typedef Compact_container<Cell> Cell_range;
  30     typedef Compact_container<int> Vertex_range;
  31     typedef typename Cell_range::iterator Cell_handle;
  32     typedef typename Vertex_range::iterator Vertex_handle;
  33 };
  34 typedef Triangulation_data_structure_3 TDS1;
  35 template <  class > struct Periodic_3_Delaunay_triangulation_3 {
  36     typedef TDS1::Vertex_handle Vertex_handle;
  37     typedef TDS1::Cell_handle Cell_handle;
  38     int compare_distance() const {
  39     }
  40     Vertex_handle nearest_vertex() const;
  41 };
  42 template < class Tds > typename Periodic_3_Delaunay_triangulation_3<Tds>::Vertex_handle Periodic_3_Delaunay_triangulation_3<Tds>::nearest_vertex() const {
  43     Cell_handle c ;
  44     Vertex_handle nearest = c->vertex(0);
  45     nearest = (compare_distance() == -1) ?       nearest : c->vertex(0);
  46     return nearest;
  47 }
  48 typedef Periodic_3_Delaunay_triangulation_3<TDS1> PDT1;
  49 struct Periodic_3_triangulation_hierarchy_3   : PDT1 {
  50     Vertex_handle   nearest_vertex() const;
  51 };
  52 Periodic_3_triangulation_hierarchy_3::Vertex_handle Periodic_3_triangulation_hierarchy_3:: nearest_vertex() const {
  53     return PDT1::nearest_vertex();
  54 }