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max_component.hh
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25 
26 #ifndef MLN_IO_PNM_MAX_COMPONENT_HH
27 # define MLN_IO_PNM_MAX_COMPONENT_HH
28 
36 # include <mln/value/rgb.hh>
37 # include <mln/value/int_u.hh>
38 
39 namespace mln
40 {
41 
42  namespace io
43  {
44 
45  namespace pnm
46  {
49  template <typename V>
50  unsigned int max_component(const V&);
51 
52 # ifndef MLN_INCLUDE_ONLY
53 
54  template <typename V>
55  inline
56  unsigned int max_component(const V&)
57  {
58  return mln_max(V);
59  }
60 
61 # ifdef MLN_VALUE_RGB_HH
62 
63  template <unsigned n>
64  inline
65  unsigned int max_component(const mln::value::rgb<n>&)
66  {
67  return mln_max( mln::value::int_u<n> );
68  }
69 
70 # endif
71 
72 # endif // ! MLN_INCLUDE_ONLY
73 
74  } // end of namespace mln::io::pnm
75 
76  } // end of namespace mln::io
77 
78 } // end of namespace mln
79 
80 
81 #endif // ! MLN_IO_PNM_MAX_COMPONENT_HH