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col.hh
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25 
26 #ifndef MLN_FUN_POINT_COL_HH
27 # define MLN_FUN_POINT_COL_HH
28 
32 
33 # include <mln/fun/unary.hh>
34 # include <mln/core/point.hh>
35 
36 namespace mln
37 {
38 
39  namespace fun
40  {
41 
42  struct col : unary<col>
43  {
44  };
45 
46  } // end of namespace mln::fun
47 
48 # ifndef MLN_INCLUDE_ONLY
49 
50  namespace trait
51  {
52 
53  namespace next
54  {
55 
56  template <typename G, typename C>
57  struct set_precise_unary_<fun::col, point<G, C> >
58  {
59  typedef set_precise_unary_ ret;
60  typedef point<G,C> argument;
61  typedef typename argument::coord result;
62  typedef argument& lvalue;
63 
64  static result read(const argument& p)
65  {
66  return p.col();
67  }
68 
69  static void write(lvalue l, const result& r)
70  {
71  l.col() = r;
72  }
73  };
74 
75  } // end of namespace mln::trait::next
76 
77  } // end of namespace mln::trait
78 
79 # endif // ! MLN_INCLUDE_ONLY
80 
81 } // end of namespace mln
82 
83 #endif // ! MLN_FUN_POINT_COL_HH