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green.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
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7 // Software Foundation, version 2 of the License.
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15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
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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 MLN_FUN_COMPONENT_GREEN_HH
27 # define MLN_FUN_COMPONENT_GREEN_HH
28 
32 
33 # include <mln/fun/unary.hh>
34 # include <mln/value/rgb.hh>
35 
36 namespace mln
37 {
38 
39  namespace fun
40  {
41 
42  struct green : unary<green> {};
43 
44  } // end of namespace mln::fun
45 
46 # ifndef MLN_INCLUDE_ONLY
47 
48  namespace trait
49  {
50 
51  namespace next
52  {
53 
54  template <unsigned n>
55  struct set_precise_unary_<mln::fun::green, mln::value::rgb<n> >
56  {
57  typedef set_precise_unary_ ret;
58  typedef mln::value::rgb<n> argument;
59  typedef typename argument::green_t result;
60  typedef argument& lvalue;
61 
62  static result read(const argument& x)
63  {
64  return x.green();
65  }
66 
67  static void write(lvalue l, const result& r)
68  {
69  l.green() = r;
70  }
71  };
72 
73  } // end of namespace mln::trait::next
74 
75  } // end of namespace mln::trait
76 
77 # endif // ! MLN_INCLUDE_ONLY
78 
79 } // end of namespace mln
80 
81 #endif // ! MLN_FUN_COMPONENT_GREEN_HH