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have_link_valid.hh
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
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19 // instantiate templates or use macros or inline functions from this
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25 
26 #ifndef SCRIBO_PRIMITIVE_INTERNAL_HAVE_LINK_VALID_HH
27 # define SCRIBO_PRIMITIVE_INTERNAL_HAVE_LINK_VALID_HH
28 
34 
35 # include <mln/util/array.hh>
36 # include <mln/util/couple.hh>
37 
38 namespace scribo
39 {
40 
41  namespace primitive
42  {
43 
44  namespace internal
45  {
46 
55  bool
57  const mln::util::array<unsigned>& right_link,
58  unsigned i);
59 
60 # ifndef MLN_INCLUDE_ONLY
61 
62  bool
64  const mln::util::array<unsigned>& right_link,
65  unsigned i)
66  {
67  return (right_link[left_link[i]] == i && left_link[i] != i)
68  || (left_link[right_link[i]] == i && right_link[i] != i);
69  }
70 
71 # endif // ! MLN_INCLUDE_ONLY
72 
73  } // end of namespace scribo::primitive::internal
74 
75  } // end of namespace scribo::primitive
76 
77 } // end of namespace scribo
78 
79 #endif // ! SCRIBO_PRIMITIVE_INTERNAL_HAVE_LINK_VALID_HH