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literal.hh
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26 
27 #ifndef MLN_CORE_CONCEPT_LITERAL_HH
28 # define MLN_CORE_CONCEPT_LITERAL_HH
29 
34 # include <mln/core/concept/object.hh>
35 
36 
37 namespace mln
38 {
39 
40  // Fwd decl.
41  template <typename E> struct Literal;
42 
45  template <>
46  struct Literal<void>
47  {
49  };
51 
52 
57  template <typename E>
58  struct Literal : public Object<E>
59  {
61 
62  static const E& the();
63 
64  protected:
65  Literal();
66  };
67 
68 
69 
70 # ifndef MLN_INCLUDE_ONLY
71 
72  template <typename E>
73  inline
75  {
76  }
77 
78  template <typename E>
79  inline
80  const E&
82  {
83  static E the_;
84  return the_;
85  }
86 
87 # endif // ! MLN_INCLUDE_ONLY
88 
89 
90 } // end of namespace mln
91 
92 
93 #endif // ! MLN_CORE_CONCEPT_LITERAL_HH