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dec.hh
1 // Copyright (C) 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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25 
26 #ifndef MLN_FUN_V2V_DEC_HH
27 # define MLN_FUN_V2V_DEC_HH
28 
32 
33 # include <mln/fun/internal/selector.hh>
34 
35 
36 namespace mln
37 {
38 
39  namespace fun
40  {
41 
42  namespace v2v
43  {
44 
45  // FIXME: Doc!
46 
47  template <typename T>
48  struct dec
49  : fun::internal::selector_<T, T, dec<T> >::ret
50  {
51  typedef T result;
52  T operator()(const T& t) const;
53  };
54 
55 
56 # ifndef MLN_INCLUDE_ONLY
57 
58  template <typename T>
59  inline
60  T
61  dec<T>::operator()(const T& t) const
62  {
63  return static_cast<T>(t - 1);
64  }
65 
66 # endif // ! MLN_INCLUDE_ONLY
67 
68  } // end of namespace mln::fun::v2v
69 
70  } // end of namespace mln::fun
71 
72 } // end of namespace mln
73 
74 
75 #endif // ! MLN_FUN_V2V_DEC_HH