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x2x_linear_impl.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development
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26 
27 #ifndef MLN_FUN_INTERNAL_X2X_LINEAR_IMPL_HH
28 # define MLN_FUN_INTERNAL_X2X_LINEAR_IMPL_HH
29 
34 
35 # include <mln/core/concept/function.hh>
36 # include <mln/algebra/h_mat.hh>
37 # include <mln/algebra/h_vec.hh>
38 
39 namespace mln
40 {
41 
42  namespace fun
43  {
44 
45  namespace internal
46  {
47 
48  template <typename V, typename C, typename E>
50  {
51  static const unsigned dim = V::dim; // To please g++ when comparing dim in metal bexpr.
52 
53  typedef V argument;
54  typedef V result;
56 
57  V operator()(const V& x) const
58  {
59  algebra::h_vec<dim, C> tmp = m_ * x.to_h_vec();
60  return tmp.to_vec();
61  }
62 
63  const matrix& mat() const;
64 
65  protected:
67 
69  };
70 
71 
72 
73 # ifndef MLN_INCLUDE_ONLY
74 
75  template <typename V, typename C, typename E>
76  inline
78  {
79  }
80 
81 
82  template <typename V, typename C, typename E>
83  inline
84  const typename x2x_linear_impl_<V,C,E>::matrix&
86  {
87  return m_;
88  }
89 
90 
91 # endif // ! MLN_INCLUDE_ONLY
92 
93  } // end of namespace mln::fun::internal
94 
95  } // end of namespace mln::fun
96 
97 } // end of namespace mln
98 
99 
100 #endif // ! MLN_FUN_INTERNAL_X2X_LINEAR_IMPL_HH