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morpho/plus.hh
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25 
26 #ifndef MLN_MORPHO_PLUS_HH
27 # define MLN_MORPHO_PLUS_HH
28 
36 # include <mln/data/compare.hh>
37 # include <mln/logical/or.hh>
38 # include <mln/arith/plus.hh>
39 
40 
41 namespace mln
42 {
43 
44  namespace morpho
45  {
46 
50  template <typename I, typename J>
51  mln_concrete(I) plus(const Image<I>& lhs, const Image<J>& rhs);
52 
53 
54 # ifndef MLN_INCLUDE_ONLY
55 
56  namespace impl
57  {
58 
59  // Binary => morphology on sets.
60 
61  template <typename I, typename J>
62  inline
63  mln_concrete(I) plus_(trait::image::kind::logic,
64  const I& lhs, const J& rhs)
65  {
66  return logical::or_(lhs, rhs);
67  }
68 
69  // Otherwise => morphology on functions.
70 
71  template <typename I, typename J>
72  inline
73  mln_concrete(I) plus_(trait::image::kind::any,
74  const I& lhs, const J& rhs)
75  {
76  return arith::plus<mln_value(I)>(lhs, rhs);
77  }
78 
79  } // end of namespace mln::morpho::impl
80 
81 
82  // Facades.
83 
84  template <typename I, typename J>
85  inline
86  mln_concrete(I) plus(const Image<I>& lhs, const Image<J>& rhs)
87  {
88  trace::entering("morpho::plus");
89  mln_precondition(exact(rhs).domain() == exact(lhs).domain());
90 
91  mln_concrete(I) output = impl::plus_(mln_trait_image_kind(I)(),
92  exact(lhs), exact(rhs));
93 
94  trace::exiting("morpho::plus");
95  return output;
96  }
97 
98 # endif // ! MLN_INCLUDE_ONLY
99 
100  } // end of namespace mln::morpho
101 
102 } // end of namespace mln
103 
104 
105 #endif // ! MLN_MORPHO_PLUS_HH