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tree_to_fast.hh
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26 
27 #ifndef MLN_UTIL_TREE_TO_FAST_HH
28 # define MLN_UTIL_TREE_TO_FAST_HH
29 
37 # include <mln/util/tree.hh>
38 # include <mln/util/tree_fast.hh>
39 # include <mln/debug/trace.hh>
40 
41 
42 namespace mln
43 {
44 
45  namespace util
46  {
47 
48 
56  template<typename T>
57  tree_fast<T>
58  tree_to_fast(tree<T>& input);
59 
60 
61 # ifndef MLN_INCLUDE_ONLY
62 
63 
64  namespace impl
65  {
66 
67  template<typename T>
68  inline
69  void
70  tree_to_fast_(tree_node<T>* input, tree_fast<T>& tree,
71  unsigned p, unsigned& i)
72  {
73  typename tree_node<T>::children_t child = input->children ();
74  typename tree_node<T>::children_t::iterator it = child.begin ();
75 
76  for (; it != child.end (); ++it)
77  {
78  tree.add_child(p, (*it)->elt ());
79  ++i;
80  impl::tree_to_fast_((*it), tree, i, i);
81  }
82  }
83 
84  }
85 
87 
88  template<typename T>
89  inline
90  tree_fast<T>
91  tree_to_fast(tree<T>& input)
92  {
93  mln_trace("util::tree_to_fast");
94 
95  unsigned i = 0;
96  tree_fast<T> tree (input.root ()->elt ());
97 
98  impl::tree_to_fast_(input.root (), tree, 0, i);
99 
100  return tree;
101  }
102 
103 # endif // ! MLN_INCLUDE_ONLY
104 
105  } // end of namespace mln::util
106 
107 } // end of namespace mln
108 
109 
110 #endif // ! MLN_UTIL_TREE_TO_FAST_HH