libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2024 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 cc_hash_table_map_/constructor_destructor_fn_imps.hpp
  38  * Contains implementations of cc_ht_map_'s constructors, destructor,
  39  * and related functions.
  40  */
  41
  42 #ifdef PB_DS_CLASS_C_DEC
  43
  44 PB_DS_CLASS_T_DEC
  45 typename PB_DS_CLASS_C_DEC::entry_allocator
  46 PB_DS_CLASS_C_DEC::s_entry_allocator;
  47
  48 PB_DS_CLASS_T_DEC
  49 typename PB_DS_CLASS_C_DEC::entry_pointer_allocator
  50 PB_DS_CLASS_C_DEC::s_entry_pointer_allocator;
  51
  52 PB_DS_CLASS_T_DEC
  53 template<typename It>
  54 void
  55 PB_DS_CLASS_C_DEC::
  56 copy_from_range(It first_it, It last_it)
  57 {
  58   while (first_it != last_it)
  59     insert(*(first_it++));
  60 }
  61
  62 PB_DS_CLASS_T_DEC
  63 PB_DS_CLASS_C_DEC::
  64 PB_DS_CC_HASH_NAME() :
  65   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1)),
  66   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
  67   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
  68 {
  69   initialize();
  70   PB_DS_ASSERT_VALID((*this))
  71 }
  72
  73 PB_DS_CLASS_T_DEC
  74 PB_DS_CLASS_C_DEC::
  75 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn) :
  76   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
  77   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
  78   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
  79 {
  80   initialize();
  81   PB_DS_ASSERT_VALID((*this))
  82 }
  83
  84 PB_DS_CLASS_T_DEC
  85 PB_DS_CLASS_C_DEC::
  86 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn) :
  87   PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
  88   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
  89   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
  90   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
  91 {
  92   std::fill(m_entries, m_entries + m_num_e, (entry_pointer)0);
  93   Resize_Policy::notify_cleared();
  94   ranged_hash_fn_base::notify_resized(m_num_e);
  95   PB_DS_ASSERT_VALID((*this))
  96 }
  97
  98 PB_DS_CLASS_T_DEC
  99 PB_DS_CLASS_C_DEC::
 100 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
 101                    const Comb_Hash_Fn& r_comb_hash_fn) :
 102   PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
 103   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
 104                       r_hash_fn, r_comb_hash_fn),
 105   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
 106   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
 107 {
 108   initialize();
 109   PB_DS_ASSERT_VALID((*this))
 110 }
 111
 112 PB_DS_CLASS_T_DEC
 113 PB_DS_CLASS_C_DEC::
 114 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
 115                    const Comb_Hash_Fn& r_comb_hash_fn,
 116                    const Resize_Policy& r_resize_policy) :
 117   PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
 118   Resize_Policy(r_resize_policy),
 119   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
 120                       r_hash_fn, r_comb_hash_fn),
 121   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
 122   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
 123 {
 124   initialize();
 125   PB_DS_ASSERT_VALID((*this))
 126 }
 127
 128 PB_DS_CLASS_T_DEC
 129 PB_DS_CLASS_C_DEC::
 130 PB_DS_CC_HASH_NAME(const PB_DS_CLASS_C_DEC& other) :
 131   PB_DS_HASH_EQ_FN_C_DEC(other),
 132   resize_base(other), ranged_hash_fn_base(other),
 133   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
 134   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
 135 {
 136   initialize();
 137   PB_DS_ASSERT_VALID((*this))
 138     __try
 139       {
 140         copy_from_range(other.begin(), other.end());
 141       }
 142     __catch(...)
 143       {
 144         deallocate_all();
 145         __throw_exception_again;
 146       }
 147   PB_DS_ASSERT_VALID((*this))
 148 }
 149
 150 PB_DS_CLASS_T_DEC
 151 PB_DS_CLASS_C_DEC::
 152 ~PB_DS_CC_HASH_NAME()
 153 { deallocate_all(); }
 154
 155 PB_DS_CLASS_T_DEC
 156 void
 157 PB_DS_CLASS_C_DEC::
 158 swap(PB_DS_CLASS_C_DEC& other)
 159 {
 160   PB_DS_ASSERT_VALID((*this))
 161   PB_DS_ASSERT_VALID(other)
 162
 163   std::swap(m_entries, other.m_entries);
 164   std::swap(m_num_e, other.m_num_e);
 165   std::swap(m_num_used_e, other.m_num_used_e);
 166   ranged_hash_fn_base::swap(other);
 167   hash_eq_fn_base::swap(other);
 168   resize_base::swap(other);
 169
 170   _GLIBCXX_DEBUG_ONLY(debug_base::swap(other));
 171   PB_DS_ASSERT_VALID((*this))
 172   PB_DS_ASSERT_VALID(other)
 173 }
 174
 175 PB_DS_CLASS_T_DEC
 176 void
 177 PB_DS_CLASS_C_DEC::
 178 deallocate_all()
 179 {
 180   clear();
 181   s_entry_pointer_allocator.deallocate(m_entries, m_num_e);
 182 }
 183
 184 PB_DS_CLASS_T_DEC
 185 void
 186 PB_DS_CLASS_C_DEC::
 187 initialize()
 188 {
 189   std::fill(m_entries, m_entries + m_num_e, entry_pointer(0));
 190   Resize_Policy::notify_resized(m_num_e);
 191   Resize_Policy::notify_cleared();
 192   ranged_hash_fn_base::notify_resized(m_num_e);
 193 }
 194 #endif