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trait/ch_function_value.hh
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25 
26 #ifndef MLN_TRAIT_CH_FUNCTION_VALUE_HH
27 # define MLN_TRAIT_CH_FUNCTION_VALUE_HH
28 
32 
33 # define mln_ch_function_value(I, V) \
34 typename mln::trait::ch_function_value< I, V >::ret
35 
36 # define mln_ch_function_value_(I, V) \
37 mln::trait::ch_functionvalue< I, V >::ret
38 
39 # include <mln/fun/v2v/ch_function_value.hh>
40 
41 namespace mln
42 {
43 
44  // Forward declarations.
45  namespace trait { template <typename F, typename V> struct ch_function_value; }
46  namespace fun { namespace i2v { template <typename T> class array; } }
47 
48 
49  namespace trait
50  {
51 
52  namespace impl
53  {
54 
56  template <typename F, typename VF, typename V>
57  struct ch_function_value
58  {
59  typedef fun::v2v::ch_function_value<F, V> ret;
60  };
61 
62  template <typename VF, typename V>
63  struct ch_function_value<fun::i2v::array<VF>, VF, V>
64  {
65  typedef fun::i2v::array<V> ret;
66  };
67 
68  } // end of namespace mln::trait::impl
69 
70 
71  template <typename F, typename V>
72  struct ch_function_value
73  {
74  typedef typename impl::ch_function_value<F, mln_result(F), V>::ret ret;
75  };
76 
77 
78  } // end of namespace mln::trait
79 
80 } // end of namespace mln
81 
82 #endif // ! MLN_TRAIT_CH_FUNCTION_VALUE_HH