release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/include/c++/4.5.3/ext/pb_ds/detail/basic_tree_policy/basic_tree_policy_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 basic_tree_policy_base.hpp
  38  * Contains a base class for tree_like policies.
  39  */
  40
  41 #ifndef PB_DS_TREE_LIKE_POLICY_BASE_HPP
  42 #define PB_DS_TREE_LIKE_POLICY_BASE_HPP
  43
  44 namespace __gnu_pbds
  45 {
  46   namespace detail
  47   {
  48
  49 #define PB_DS_CLASS_C_DEC                                               \
  50     basic_tree_policy_base<                                             \
  51                                                         Const_Node_Iterator, \
  52                                                         Node_Iterator,  \
  53                                                         Allocator>
  54
  55     template<typename Const_Node_Iterator,
  56              typename Node_Iterator,
  57              typename Allocator>
  58     struct basic_tree_policy_base
  59     {
  60     protected:
  61       typedef typename Node_Iterator::value_type it_type;
  62
  63       typedef typename std::iterator_traits< it_type>::value_type value_type;
  64
  65       typedef typename value_type::first_type key_type;
  66
  67       typedef
  68       typename Allocator::template rebind<
  69         typename remove_const<
  70         key_type>::type>::other::const_reference
  71       const_key_reference;
  72
  73       typedef
  74       typename Allocator::template rebind<
  75         typename remove_const<
  76         value_type>::type>::other::const_reference
  77       const_reference;
  78
  79       typedef
  80       typename Allocator::template rebind<
  81         typename remove_const<
  82         value_type>::type>::other::reference
  83       reference;
  84
  85       typedef
  86       typename Allocator::template rebind<
  87         typename remove_const<
  88         value_type>::type>::other::const_pointer
  89       const_pointer;
  90
  91       static inline const_key_reference
  92       extract_key(const_reference r_val)
  93       {
  94         return (r_val.first);
  95       }
  96
  97       virtual it_type
  98       end() = 0;
  99
 100       it_type
 101       end_iterator() const
 102       {
 103         return (const_cast<PB_DS_CLASS_C_DEC* >(this)->end());
 104       }
 105
 106       virtual
 107       ~basic_tree_policy_base()
 108       { }
 109     };
 110
 111     template<typename Const_Node_Iterator, typename Allocator>
 112     struct basic_tree_policy_base<
 113       Const_Node_Iterator,
 114       Const_Node_Iterator,
 115       Allocator>
 116     {
 117     protected:
 118       typedef typename Const_Node_Iterator::value_type it_type;
 119
 120       typedef typename std::iterator_traits< it_type>::value_type value_type;
 121
 122       typedef value_type key_type;
 123
 124       typedef
 125       typename Allocator::template rebind<
 126         typename remove_const<
 127         key_type>::type>::other::const_reference
 128       const_key_reference;
 129
 130       typedef
 131       typename Allocator::template rebind<
 132         typename remove_const<
 133         value_type>::type>::other::const_reference
 134       const_reference;
 135
 136       typedef
 137       typename Allocator::template rebind<
 138         typename remove_const<
 139         value_type>::type>::other::reference
 140       reference;
 141
 142       typedef
 143       typename Allocator::template rebind<
 144         typename remove_const<
 145         value_type>::type>::other::const_pointer
 146       const_pointer;
 147
 148       static inline const_key_reference
 149       extract_key(const_reference r_val)
 150       {
 151         return (r_val);
 152       }
 153
 154       virtual it_type
 155       end() const = 0;
 156
 157       it_type
 158       end_iterator() const
 159       {
 160         return (end());
 161       }
 162
 163       virtual
 164       ~basic_tree_policy_base()
 165       { }
 166     };
 167
 168 #undef PB_DS_CLASS_C_DEC
 169
 170   } // namespace detail
 171 } // namespace __gnu_pbds
 172
 173 #endif // #ifndef PB_DS_TREE_LIKE_POLICY_BASE_HPP