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concept/dpoint.hh
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25 
26 #ifndef MLN_CORE_CONCEPT_DPOINT_HH
27 # define MLN_CORE_CONCEPT_DPOINT_HH
28 
33 # include <mln/core/concept/delta_point_site.hh>
34 # include <mln/core/grids.hh>
35 
36 
37 namespace mln
38 {
39 
40  // Fwd decl.
41  template <typename E> struct Dpoint;
42 
43 
44  // Dpoint category flag type.
45  template <>
46  struct Dpoint<void>
47  {
48  typedef Delta_Point_Site<void> super;
49  };
50 
51 
62  template <typename E>
63  struct Dpoint : public Delta_Point_Site<E>
64  {
65  typedef Dpoint<void> category;
66 
67  typedef E dpoint;
68 
70  const E& to_dpoint() const;
71 
72  protected:
73  Dpoint();
74  };
75 
76 
77 # ifndef MLN_INCLUDE_ONLY
78 
79  template <typename E>
80  inline
82  {
83  }
84 
85  template <typename E>
86  inline
87  const E&
89  {
90  return exact(*this);
91  }
92 
93 # endif // ! MLN_INCLUDE_ONLY
94 
95 } // end of namespace mln
96 
97 
98 #endif // ! MLN_CORE_CONCEPT_DPOINT_HH