libstdc++
pat_trie_/trace_fn_imps.hpp
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1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2014 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 3, or (at your option) any later
9 // version.
10 
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26 
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
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30 // and this permission notice appear in supporting documentation. None
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34 // warranty.
35 
36 /**
37  * @file pat_trie_/trace_fn_imps.hpp
38  * Contains an implementation class for pat_trie_.
39  */
40 
41 #ifdef PB_DS_PAT_TRIE_TRACE_
42 
43 PB_DS_CLASS_T_DEC
44 void
45 PB_DS_CLASS_C_DEC::
46 trace() const
47 {
49  if (m_p_head->m_p_parent == 0)
50  return;
51  trace_node(m_p_head->m_p_parent, 0);
53 }
54 
55 PB_DS_CLASS_T_DEC
56 void
57 PB_DS_CLASS_C_DEC::
58 trace_node(node_const_pointer p_nd, size_type level)
59 {
60  for (size_type i = 0; i < level; ++i)
61  std::cerr << ' ';
62  std::cerr << p_nd << " ";
63  std::cerr << ((p_nd->m_type == pat_trie_leaf_node_type) ? "l " : "i ");
64 
65  trace_node_metadata(p_nd, type_to_type<typename node::metadata_type>());
66  typename access_traits::const_iterator el_it = pref_begin(p_nd);
67  while (el_it != pref_end(p_nd))
68  {
69  std::cerr <<* el_it;
70  ++el_it;
71  }
72 
73  if (p_nd->m_type == pat_trie_leaf_node_type)
74  {
76  return;
77  }
78 
79  inode_const_pointer p_internal = static_cast<inode_const_pointer>(p_nd);
80 
81  std::cerr << " " <<
82  static_cast<unsigned long>(p_internal->get_e_ind()) << std::endl;
83 
84  const size_type num_children = std::distance(p_internal->begin(),
85  p_internal->end());
86 
87  for (size_type child_i = 0; child_i < num_children; ++child_i)
88  {
89  typename inode::const_iterator child_it = p_internal->begin();
90  std::advance(child_it, num_children - child_i - 1);
91  trace_node(*child_it, level + 1);
92  }
93 }
94 
95 PB_DS_CLASS_T_DEC
96 template<typename Metadata_>
97 void
98 PB_DS_CLASS_C_DEC::
99 trace_node_metadata(node_const_pointer p_nd, type_to_type<Metadata_>)
100 {
101  std::cerr << "(" << static_cast<unsigned long>(p_nd->get_metadata()) << ") ";
102 }
103 
104 PB_DS_CLASS_T_DEC
105 void
106 PB_DS_CLASS_C_DEC::
107 trace_node_metadata(node_const_pointer, type_to_type<null_type>)
108 { }
109 
110 #endif
111 
iterator_traits< _InputIterator >::difference_type distance(_InputIterator __first, _InputIterator __last)
A generalization of pointer arithmetic.
basic_ostream< _CharT, _Traits > & endl(basic_ostream< _CharT, _Traits > &__os)
Write a newline and flush the stream.
Definition: ostream:564
void advance(_InputIterator &__i, _Distance __n)
A generalization of pointer arithmetic.
ostream cerr
Linked to standard output.