contrib/gcc-4.4/libstdc++-v3/include/ext/pb_ds/detail/tree_trace_base.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2009 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
  29 // notice appears in all copies, and that both that copyright notice
  30 // and this permission notice appear in supporting documentation. None
  31 // of the above authors, nor IBM Haifa Research Laboratories, make any
  32 // representation about the suitability of this software for any
  33 // purpose. It is provided "as is" without express or implied
  34 // warranty.
  35
  36 /**
  37  * @file tree_trace_base.hpp
  38  * Contains tree-related policies.
  39  */
  40
  41 #ifndef PB_DS_TREE_TRACE_BASE_HPP
  42 #define PB_DS_TREE_TRACE_BASE_HPP
  43
  44 #ifdef PB_DS_TREE_TRACE
  45
  46 #include <ext/pb_ds/detail/basic_tree_policy/basic_tree_policy_base.hpp>
  47 #include <ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp>
  48
  49 namespace __gnu_pbds
  50 {
  51
  52   namespace detail
  53   {
  54
  55 #ifdef PB_DS_TREE_TRACE
  56
  57 #define PB_DS_CLASS_T_DEC                                               \
  58     template<                                                           \
  59                                                 class Const_Node_Iterator, \
  60                                                 class Node_Iterator,    \
  61                                                 class Cmp_Fn,           \
  62                                                 bool Node_Based,        \
  63                                                 class Allocator>
  64
  65 #define PB_DS_CLASS_C_DEC                                               \
  66     tree_trace_base<                                                    \
  67                                                 Const_Node_Iterator,    \
  68                                                 Node_Iterator,          \
  69                                                 Cmp_Fn,                 \
  70                                                 Node_Based,             \
  71                                                 Allocator>
  72
  73 #define PB_DS_BASE_C_DEC                                                \
  74     basic_tree_policy_base<                             \
  75                                                                 Const_Node_Iterator, \
  76                                                                 Node_Iterator, \
  77                                                                 Allocator>
  78
  79     template<typename Const_Node_Iterator,
  80              class Node_Iterator,
  81              class Cmp_Fn,
  82              bool Node_Based,
  83              class Allocator>
  84     class tree_trace_base : private PB_DS_BASE_C_DEC
  85     {
  86     public:
  87       void
  88       trace() const;
  89
  90     private:
  91       typedef PB_DS_BASE_C_DEC base_type;
  92
  93       typedef Const_Node_Iterator const_node_iterator;
  94
  95       typedef typename Allocator::size_type size_type;
  96
  97     private:
  98       void
  99       trace_node(const_node_iterator nd_it, size_type level) const;
 100
 101       virtual bool
 102       empty() const = 0;
 103
 104       virtual const_node_iterator
 105       node_begin() const = 0;
 106
 107       virtual const_node_iterator
 108       node_end() const = 0;
 109
 110       static void
 111       print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,true>);
 112
 113       static void
 114       print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,false>);
 115
 116       template<typename Metadata_>
 117       static void
 118       trace_it_metadata(Const_Node_Iterator nd_it, type_to_type<Metadata_>);
 119
 120       static void
 121       trace_it_metadata(Const_Node_Iterator, type_to_type<null_node_metadata>);
 122     };
 123
 124     PB_DS_CLASS_T_DEC
 125     void
 126     PB_DS_CLASS_C_DEC::
 127     trace() const
 128     {
 129       if (empty())
 130         return;
 131
 132       trace_node(node_begin(), 0);
 133     }
 134
 135     PB_DS_CLASS_T_DEC
 136     void
 137     PB_DS_CLASS_C_DEC::
 138     trace_node(const_node_iterator nd_it, size_type level) const
 139     {
 140       if (nd_it.get_r_child() != node_end())
 141         trace_node(nd_it.get_r_child(), level + 1);
 142
 143       for (size_type i = 0; i < level; ++i)
 144         std::cerr << ' ';
 145
 146       print_node_pointer(nd_it, integral_constant<int,Node_Based>());
 147       std::cerr << base_type::extract_key(*(*nd_it));
 148
 149       typedef
 150         type_to_type<
 151         typename const_node_iterator::metadata_type>
 152         m_type_ind_t;
 153
 154       trace_it_metadata(nd_it, m_type_ind_t());
 155
 156       std::cerr << std::endl;
 157
 158       if (nd_it.get_l_child() != node_end())
 159         trace_node(nd_it.get_l_child(), level + 1);
 160     }
 161
 162     PB_DS_CLASS_T_DEC
 163     template<typename Metadata_>
 164     void
 165     PB_DS_CLASS_C_DEC::
 166     trace_it_metadata(Const_Node_Iterator nd_it, type_to_type<Metadata_>)
 167     {
 168       std::cerr << " (" <<
 169         static_cast<unsigned long>(nd_it.get_metadata()) << ") ";
 170     }
 171
 172     PB_DS_CLASS_T_DEC
 173     void
 174     PB_DS_CLASS_C_DEC::
 175     trace_it_metadata(Const_Node_Iterator, type_to_type<null_node_metadata>)
 176     { }
 177
 178     PB_DS_CLASS_T_DEC
 179     void
 180     PB_DS_CLASS_C_DEC::
 181     print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,true>)
 182     {
 183       std::cerr << nd_it.m_p_nd << " ";
 184     }
 185
 186     PB_DS_CLASS_T_DEC
 187     void
 188     PB_DS_CLASS_C_DEC::
 189     print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,false>)
 190     {
 191       std::cerr <<* nd_it << " ";
 192     }
 193
 194 #undef PB_DS_CLASS_T_DEC
 195
 196 #undef PB_DS_CLASS_C_DEC
 197
 198 #undef PB_DS_BASE_C_DEC
 199
 200 #endif // #ifdef    PB_DS_TREE_TRACE
 201
 202   } // namespace detail
 203
 204 } // namespace __gnu_pbds
 205
 206 #endif // #ifdef PB_DS_TREE_TRACE
 207
 208 #endif // #ifndef PB_DS_TREE_TRACE_BASE_HPP
 209