Milena (Olena)  User documentation 2.0a Id
 All Classes Namespaces Functions Variables Typedefs Enumerator Groups Pages
nrows.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development
2 // Laboratory (LRDE)
3 //
4 // This file is part of Olena.
5 //
6 // Olena is free software: you can redistribute it and/or modify it under
7 // the terms of the GNU General Public License as published by the Free
8 // Software Foundation, version 2 of the License.
9 //
10 // Olena is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
17 //
18 // As a special exception, you may use this file as part of a free
19 // software project without restriction. Specifically, if other files
20 // instantiate templates or use macros or inline functions from this
21 // file, or you compile this file and link it with other files to produce
22 // an executable, this file does not by itself cause the resulting
23 // executable to be covered by the GNU General Public License. This
24 // exception does not however invalidate any other reasons why the
25 // executable file might be covered by the GNU General Public License.
26 
27 #ifndef MLN_GEOM_NROWS_HH
28 # define MLN_GEOM_NROWS_HH
29 
33 
34 # include <mln/geom/min_row.hh>
35 # include <mln/geom/max_row.hh>
36 
37 
38 namespace mln
39 {
40 
41  namespace geom
42  {
43 
45  template <typename I>
46  unsigned nrows(const Image<I>& ima);
47 
49  template <typename B>
50  unsigned nrows(const Box<B>& b);
51 
52 
53 # ifndef MLN_INCLUDE_ONLY
54 
55  template <typename I>
56  inline
57  unsigned nrows(const Image<I>& ima)
58  {
59  mln_precondition(exact(ima).is_valid());
60  unsigned nrows = geom::max_row(ima) - geom::min_row(ima) + 1;
61 
62  return nrows;
63  }
64 
65  template <typename B>
66  unsigned nrows(const Box<B>& b)
67  {
68  metal::not_<metal::equal<metal::int_<B::dim>, metal::int_<1> > >::check();
69  unsigned nrows = geom::max_row(b) - geom::min_row(b) + 1;
70 
71  return nrows;
72  }
73 
74 # endif // ! MLN_INCLUDE_ONLY
75 
76  } // end of namespace mln::geom
77 
78 } // end of namespace mln
79 
80 
81 #endif // ! MLN_GEOM_NROWS_HH