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replace.hh
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26 
27 #ifndef MLN_DATA_REPLACE_HH
28 # define MLN_DATA_REPLACE_HH
29 
33 
34 # include <mln/core/concept/image.hh>
35 # include <mln/core/image/dmorph/image_if.hh>
36 
37 # include <mln/data/fill.hh>
38 # include <mln/pw/value.hh>
39 # include <mln/pw/cst.hh>
40 
41 
42 namespace mln
43 {
44 
45  namespace data
46  {
47 
57  template <typename I>
58  void replace(Image<I>& input,
59  const mln_value(I)& old_value, const mln_value(I)& new_value);
60 
61 
62 # ifndef MLN_INCLUDE_ONLY
63 
64  namespace impl
65  {
66 
67  namespace generic
68  {
69 
70  template <typename I>
71  inline
72  void replace_(Image<I>& input_, const mln_value(I)& old_value,
73  const mln_value(I)& new_value)
74  {
75  mln_trace("data::impl::generic::replace");
76  I& input = exact(input_);
77 
78  data::fill((input | (pw::value(input) == pw::cst(old_value))).rw(),
79  new_value);
80 
81  }
82 
83  } // end of namespace mln::data::impl::generic
84 
85  } // end of namespace mln::data::impl
86 
87 
88 
89  // Facade.
90  template <typename I>
91  void replace(Image<I>& input,
92  const mln_value(I)& old_value, const mln_value(I)& new_value)
93  {
94  mln_trace("data::replace");
95 
96  mln_precondition(exact(input).is_valid());
97 
98  impl::generic::replace_<I>(exact(input), old_value, new_value);
99 
100  }
101 
102 
103 # endif // ! MLN_INCLUDE_ONLY
104 
105  } // end of namespace mln::data
106 
107 } // end of namespace mln
108 
109 
110 #endif // ! MLN_DATA_REPLACE_HH