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impl.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development
2 // Laboratory (LRDE)
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8 // Software Foundation, version 2 of the License.
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20 // instantiate templates or use macros or inline functions from this
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26 
27 #ifndef MLN_FUN_META_IMPL_HH
28 # define MLN_FUN_META_IMPL_HH
29 
35 
36 # include <mln/core/concept/object.hh>
37 # include <mln/core/concept/function.hh>
38 
39 
40 namespace mln
41 {
42 
43  template <class M>
44  struct function;
45 
46  namespace meta
47  {
48 
49  template <class M>
50  struct impl
51  {
52 
53  typedef function<M> F;
54  typedef typename F::value value;
55  typedef typename F::result result;
56  typedef typename F::lresult lresult;
57  typedef typename F::category category;
58 
59  result
60  operator()(const value& t) const
61  {
62  F f;
63  return f.read(t);
64  }
65 
66  value&
67  f_1(result v, value& t)
68  {
69  F f;
70  f.write(t) = v;
71  return t;
72  }
73 
74  };
75 
76  } // end of namespace meta
77 
78 } // end of namespace mln
79 
80 #endif // ! MLN_FUN_META_IMPL_HH