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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 
45  template <typename I>
46  unsigned ncols(const Image<I>& ima);
47 
49  template <typename B>
50  unsigned ncols(const Box<B>& b);
51 
52 
53 # ifndef MLN_INCLUDE_ONLY
54 
55  template <typename I>
56  inline
57  unsigned ncols(const Image<I>& ima)
58  {
59  mln_precondition(exact(ima).is_valid());
60  unsigned ncols = geom::max_col(ima) - geom::min_col(ima) + 1;
61 
62  return ncols;
63  }
64 
65 
66  template <typename B>
67  unsigned ncols(const Box<B>& b)
68  {
69  metal::not_<metal::equal<metal::int_<B::dim>, metal::int_<1> > >::check();
70  unsigned ncols = geom::max_col(b) - geom::min_col(b) + 1;
71 
72  return ncols;
73  }
74 
75 # endif // ! MLN_INCLUDE_ONLY
76 
77  } // end of namespace mln::geom
78 
79 } // end of namespace mln
80 
81 
82 #endif // ! MLN_GEOM_NCOLS_HH