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ncols.hh
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26 
27 #ifndef MLN_GEOM_NCOLS_HH
28 # define MLN_GEOM_NCOLS_HH
29 
33 
34 # include <mln/geom/min_col.hh>
35 # include <mln/geom/max_col.hh>
36 
37 
38 namespace mln
39 {
40 
41  namespace geom
42  {
43 
48  template <typename I>
49  unsigned ncols(const Image<I>& ima);
50 
55  template <typename B>
56  unsigned ncols(const Box<B>& b);
57 
58 
59 # ifndef MLN_INCLUDE_ONLY
60 
61  template <typename I>
62  inline
63  unsigned ncols(const Image<I>& ima)
64  {
65  mln_precondition(exact(ima).is_valid());
66  unsigned ncols = geom::max_col(ima) - geom::min_col(ima) + 1;
67 
68  return ncols;
69  }
70 
71 
72  template <typename B>
73  unsigned ncols(const Box<B>& b)
74  {
75  metal::not_<metal::equal<metal::int_<B::dim>, metal::int_<1> > >::check();
76  unsigned ncols = geom::max_col(b) - geom::min_col(b) + 1;
77 
78  return ncols;
79  }
80 
81 # endif // ! MLN_INCLUDE_ONLY
82 
83  } // end of namespace mln::geom
84 
85 } // end of namespace mln
86 
87 
88 #endif // ! MLN_GEOM_NCOLS_HH