contrib/gcc-8.0/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp

   1  // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2018 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 pat_trie_/constructors_destructor_fn_imps.hpp
  38  * Contains an implementation class for pat_trie.
  39  */
  40
  41 PB_DS_CLASS_T_DEC
  42 typename PB_DS_CLASS_C_DEC::head_allocator
  43 PB_DS_CLASS_C_DEC::s_head_allocator;
  44
  45 PB_DS_CLASS_T_DEC
  46 typename PB_DS_CLASS_C_DEC::inode_allocator
  47 PB_DS_CLASS_C_DEC::s_inode_allocator;
  48
  49 PB_DS_CLASS_T_DEC
  50 typename PB_DS_CLASS_C_DEC::leaf_allocator
  51 PB_DS_CLASS_C_DEC::s_leaf_allocator;
  52
  53 PB_DS_CLASS_T_DEC
  54 PB_DS_CLASS_C_DEC::
  55 PB_DS_PAT_TRIE_NAME() :
  56   m_p_head(s_head_allocator.allocate(1)),
  57   m_size(0)
  58 {
  59   initialize();
  60   PB_DS_ASSERT_VALID((*this))
  61 }
  62
  63 PB_DS_CLASS_T_DEC
  64 PB_DS_CLASS_C_DEC::
  65 PB_DS_PAT_TRIE_NAME(const access_traits& r_access_traits) :
  66   synth_access_traits(r_access_traits),
  67   m_p_head(s_head_allocator.allocate(1)),
  68   m_size(0)
  69 {
  70   initialize();
  71   PB_DS_ASSERT_VALID((*this))
  72 }
  73
  74 PB_DS_CLASS_T_DEC
  75 PB_DS_CLASS_C_DEC::
  76 PB_DS_PAT_TRIE_NAME(const PB_DS_CLASS_C_DEC& other) :
  77 #ifdef _GLIBCXX_DEBUG
  78   debug_base(other),
  79 #endif
  80   synth_access_traits(other),
  81   node_update(other),
  82   m_p_head(s_head_allocator.allocate(1)),
  83   m_size(0)
  84 {
  85   initialize();
  86   m_size = other.m_size;
  87   PB_DS_ASSERT_VALID(other)
  88     if (other.m_p_head->m_p_parent == 0)
  89       {
  90         PB_DS_ASSERT_VALID((*this))
  91         return;
  92       }
  93   __try
  94     {
  95       m_p_head->m_p_parent = recursive_copy_node(other.m_p_head->m_p_parent);
  96     }
  97   __catch(...)
  98     {
  99       s_head_allocator.deallocate(m_p_head, 1);
 100       __throw_exception_again;
 101     }
 102
 103   m_p_head->m_p_min = leftmost_descendant(m_p_head->m_p_parent);
 104   m_p_head->m_p_max = rightmost_descendant(m_p_head->m_p_parent);
 105   m_p_head->m_p_parent->m_p_parent = m_p_head;
 106   PB_DS_ASSERT_VALID((*this))
 107 }
 108
 109 PB_DS_CLASS_T_DEC
 110 void
 111 PB_DS_CLASS_C_DEC::
 112 swap(PB_DS_CLASS_C_DEC& other)
 113 {
 114   PB_DS_ASSERT_VALID((*this))
 115   PB_DS_ASSERT_VALID(other)
 116   value_swap(other);
 117   std::swap((access_traits& )(*this), (access_traits& )other);
 118   PB_DS_ASSERT_VALID((*this))
 119   PB_DS_ASSERT_VALID(other)
 120 }
 121
 122 PB_DS_CLASS_T_DEC
 123 void
 124 PB_DS_CLASS_C_DEC::
 125 value_swap(PB_DS_CLASS_C_DEC& other)
 126 {
 127   _GLIBCXX_DEBUG_ONLY(debug_base::swap(other);)
 128   std::swap(m_p_head, other.m_p_head);
 129   std::swap(m_size, other.m_size);
 130 }
 131
 132 PB_DS_CLASS_T_DEC
 133 PB_DS_CLASS_C_DEC::
 134 ~PB_DS_PAT_TRIE_NAME()
 135 {
 136   clear();
 137   s_head_allocator.deallocate(m_p_head, 1);
 138 }
 139
 140 PB_DS_CLASS_T_DEC
 141 void
 142 PB_DS_CLASS_C_DEC::
 143 initialize()
 144 {
 145   new (m_p_head) head();
 146   m_p_head->m_p_parent = 0;
 147   m_p_head->m_p_min = m_p_head;
 148   m_p_head->m_p_max = m_p_head;
 149   m_size = 0;
 150 }
 151
 152 PB_DS_CLASS_T_DEC
 153 template<typename It>
 154 void
 155 PB_DS_CLASS_C_DEC::
 156 copy_from_range(It first_it, It last_it)
 157 {
 158   while (first_it != last_it)
 159     insert(*(first_it++));
 160 }
 161
 162 PB_DS_CLASS_T_DEC
 163 typename PB_DS_CLASS_C_DEC::node_pointer
 164 PB_DS_CLASS_C_DEC::
 165 recursive_copy_node(node_const_pointer p_ncp)
 166 {
 167   _GLIBCXX_DEBUG_ASSERT(p_ncp != 0);
 168   if (p_ncp->m_type == leaf_node)
 169     {
 170       leaf_const_pointer p_other_lf = static_cast<leaf_const_pointer>(p_ncp);
 171       leaf_pointer p_new_lf = s_leaf_allocator.allocate(1);
 172       cond_dealtor cond(p_new_lf);
 173       new (p_new_lf) leaf(p_other_lf->value());
 174       apply_update(p_new_lf, (node_update*)this);
 175       cond.set_no_action_dtor();
 176       return (p_new_lf);
 177     }
 178
 179   _GLIBCXX_DEBUG_ASSERT(p_ncp->m_type == i_node);
 180   node_pointer a_p_children[inode::arr_size];
 181   size_type child_i = 0;
 182   inode_const_pointer p_icp = static_cast<inode_const_pointer>(p_ncp);
 183
 184   typename inode::const_iterator child_it = p_icp->begin();
 185
 186   inode_pointer p_ret;
 187   __try
 188     {
 189       while (child_it != p_icp->end())
 190         {
 191           a_p_children[child_i] = recursive_copy_node(*(child_it));
 192           child_i++;
 193           child_it++;
 194         }
 195       p_ret = s_inode_allocator.allocate(1);
 196     }
 197   __catch(...)
 198     {
 199       while (child_i-- > 0)
 200         clear_imp(a_p_children[child_i]);
 201       __throw_exception_again;
 202     }
 203
 204   new (p_ret) inode(p_icp->get_e_ind(), pref_begin(a_p_children[0]));
 205
 206   --child_i;
 207   _GLIBCXX_DEBUG_ASSERT(child_i >= 1);
 208   do
 209     p_ret->add_child(a_p_children[child_i], pref_begin(a_p_children[child_i]),
 210                      pref_end(a_p_children[child_i]), this);
 211   while (child_i-- > 0);
 212   apply_update(p_ret, (node_update*)this);
 213   return p_ret;
 214 }