libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/head.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006 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 2, 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 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 // MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free
  22 // software library without restriction.  Specifically, if other files
  23 // instantiate templates or use macros or inline functions from this
  24 // file, or you compile this file and link it with other files to
  25 // produce an executable, this file does not by itself cause the
  26 // resulting executable to be covered by the GNU General Public
  27 // License.  This exception does not however invalidate any other
  28 // reasons why the executable file might be covered by the GNU General
  29 // Public License.
  30
  31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  32
  33 // Permission to use, copy, modify, sell, and distribute this software
  34 // is hereby granted without fee, provided that the above copyright
  35 // notice appears in all copies, and that both that copyright notice
  36 // and this permission notice appear in supporting documentation. None
  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
  39 // purpose. It is provided "as is" without express or implied
  40 // warranty.
  41
  42 /**
  43  * @file head.hpp
  44  * Contains a leaf for a patricia tree.
  45  */
  46
  47 #ifndef PB_DS_PAT_TRIE_IHEAD_HPP
  48 #define PB_DS_PAT_TRIE_IHEAD_HPP
  49
  50 #ifdef PB_DS_PAT_TRIE_DEBUG_
  51 #include <cassert>
  52 #endif // #ifdef PB_DS_PAT_TRIE_DEBUG_
  53 #include <ext/pb_ds/detail/pat_trie_/node_base.hpp>
  54
  55 namespace pb_ds
  56 {
  57   namespace detail
  58   {
  59
  60 #define PB_DS_CLASS_T_DEC                                               \
  61     template<                                                           \
  62                                                 class Type_Traits,      \
  63                                                 class E_Access_Traits,  \
  64                                                 class Metadata,         \
  65                                                 class Allocator>
  66
  67 #define PB_DS_CLASS_C_DEC                                               \
  68     pat_trie_head<                                                      \
  69                                                 Type_Traits,            \
  70                                                 E_Access_Traits,        \
  71                                                 Metadata,               \
  72                                                 Allocator>
  73
  74 #define PB_DS_BASE_C_DEC                                        \
  75     pat_trie_node_base<                                         \
  76                                         Type_Traits,            \
  77                                         E_Access_Traits,        \
  78                                         Metadata,               \
  79                                         Allocator>
  80
  81 #ifdef PB_DS_PAT_TRIE_DEBUG_
  82 #define PB_DS_DBG_ASSERT(X) assert(X)
  83 #define PB_DS_DBG_VERIFY(X) assert(X)
  84 #define PB_DS_DBG_ONLY(X) X
  85 #else // #ifdef PB_DS_PAT_TRIE_DEBUG_
  86 #define PB_DS_DBG_ASSERT(X)
  87 #define PB_DS_DBG_VERIFY(X) {if((X)==0);}
  88 #define PB_DS_DBG_ONLY(X) ;
  89 #endif // #ifdef PB_DS_PAT_TRIE_DEBUG_
  90
  91     template<typename Type_Traits,
  92              class E_Access_Traits,
  93              class Metadata,
  94              class Allocator>
  95     struct pat_trie_head : public PB_DS_BASE_C_DEC
  96     {
  97     private:
  98       typedef E_Access_Traits e_access_traits;
  99
 100       typedef
 101       typename Allocator::template rebind<
 102         e_access_traits>::other::const_pointer
 103       const_e_access_traits_pointer;
 104
 105       typedef
 106       typename Allocator::template rebind<
 107         PB_DS_BASE_C_DEC>::other::pointer
 108       node_pointer;
 109
 110 #ifdef PB_DS_PAT_TRIE_DEBUG_
 111       typedef
 112       typename PB_DS_BASE_C_DEC::subtree_debug_info
 113       subtree_debug_info;
 114 #endif // #ifdef PB_DS_PAT_TRIE_DEBUG_
 115
 116     public:
 117       pat_trie_head();
 118
 119 #ifdef PB_DS_PAT_TRIE_DEBUG_
 120       virtual subtree_debug_info
 121       assert_valid_imp(const_e_access_traits_pointer p_traits) const;
 122 #endif // #ifdef PB_DS_PAT_TRIE_DEBUG_
 123
 124     public:
 125       node_pointer m_p_min;
 126
 127       node_pointer m_p_max;
 128     };
 129
 130     PB_DS_CLASS_T_DEC
 131     PB_DS_CLASS_C_DEC::
 132     pat_trie_head() :
 133       PB_DS_BASE_C_DEC(pat_trie_head_node_type)
 134     { }
 135
 136 #ifdef PB_DS_PAT_TRIE_DEBUG_
 137     PB_DS_CLASS_T_DEC
 138     typename PB_DS_CLASS_C_DEC::subtree_debug_info
 139     PB_DS_CLASS_C_DEC::
 140     assert_valid_imp(const_e_access_traits_pointer /*p_traits*/) const
 141     {
 142       PB_DS_DBG_ASSERT(false);
 143
 144       return (subtree_debug_info());
 145     }
 146 #endif // #ifdef PB_DS_PAT_TRIE_DEBUG_
 147
 148 #undef PB_DS_CLASS_T_DEC
 149
 150 #undef PB_DS_CLASS_C_DEC
 151
 152 #undef PB_DS_BASE_C_DEC
 153
 154 #undef PB_DS_DBG_ASSERT
 155 #undef PB_DS_DBG_VERIFY
 156 #undef PB_DS_DBG_ONLY
 157
 158   } // namespace detail
 159 } // namespace pb_ds
 160
 161 #endif // #ifndef PB_DS_PAT_TRIE_HEAD_HPP
 162