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

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2009, 2011 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 head.hpp
  38  * Contains a leaf for a patricia tree.
  39  */
  40
  41 #ifndef PB_DS_PAT_TRIE_IHEAD_HPP
  42 #define PB_DS_PAT_TRIE_IHEAD_HPP
  43
  44 #include <ext/pb_ds/detail/pat_trie_/node_base.hpp>
  45 #include <debug/debug.h>
  46
  47 namespace __gnu_pbds
  48 {
  49   namespace detail
  50   {
  51 #define PB_DS_CLASS_T_DEC \
  52     template<typename Type_Traits, typename E_Access_Traits,    \
  53               typename Metadata, typename Allocator>
  54
  55 #define PB_DS_CLASS_C_DEC \
  56     pat_trie_head<Type_Traits, E_Access_Traits, Metadata, Allocator>
  57
  58 #define PB_DS_BASE_C_DEC \
  59     pat_trie_node_base<Type_Traits, E_Access_Traits, Metadata, Allocator>
  60
  61     template<typename Type_Traits,
  62              typename E_Access_Traits,
  63              typename Metadata,
  64              typename Allocator>
  65     struct pat_trie_head : public PB_DS_BASE_C_DEC
  66     {
  67     private:
  68       typedef E_Access_Traits e_access_traits;
  69
  70       typedef
  71       typename Allocator::template rebind<
  72         e_access_traits>::other::const_pointer
  73       const_e_access_traits_pointer;
  74
  75       typedef
  76       typename Allocator::template rebind<
  77         PB_DS_BASE_C_DEC>::other::pointer
  78       node_pointer;
  79
  80 #ifdef _GLIBCXX_DEBUG
  81       typedef
  82       typename PB_DS_BASE_C_DEC::subtree_debug_info
  83       subtree_debug_info;
  84 #endif
  85
  86     public:
  87       pat_trie_head();
  88
  89 #ifdef _GLIBCXX_DEBUG
  90       virtual subtree_debug_info
  91       assert_valid_imp(const_e_access_traits_pointer p_traits,
  92                        const char* file, int line) const;
  93 #endif
  94
  95     public:
  96       node_pointer m_p_min;
  97
  98       node_pointer m_p_max;
  99     };
 100
 101     PB_DS_CLASS_T_DEC
 102     PB_DS_CLASS_C_DEC::
 103     pat_trie_head() : PB_DS_BASE_C_DEC(pat_trie_head_node_type)
 104     { }
 105
 106 #ifdef _GLIBCXX_DEBUG
 107     PB_DS_CLASS_T_DEC
 108     typename PB_DS_CLASS_C_DEC::subtree_debug_info
 109     PB_DS_CLASS_C_DEC::
 110     assert_valid_imp(const_e_access_traits_pointer /*p_traits*/,
 111                      const char* __file, int __line) const
 112     {
 113       _GLIBCXX_DEBUG_VERIFY_AT(false,
 114                                _M_message("Assertion from %1;:%2;")
 115                                ._M_string(__FILE__)._M_integer(__LINE__),
 116                                __file, __line);
 117       return subtree_debug_info();
 118     }
 119 #endif
 120
 121 #undef PB_DS_CLASS_T_DEC
 122 #undef PB_DS_CLASS_C_DEC
 123 #undef PB_DS_BASE_C_DEC
 124
 125   } // namespace detail
 126 } // namespace __gnu_pbds
 127
 128 #endif
 129