contrib/gcc-4.7/libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/constructor_destructor_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the terms
   8 // of the GNU General Public License as published by the Free Software
   9 // Foundation; either version 3, or (at your option) any later
  10 // version.
  11
  12 // This library is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16
  17 // Under Section 7 of GPL version 3, you are granted additional
  18 // permissions described in the GCC Runtime Library Exception, version
  19 // 3.1, as published by the Free Software Foundation.
  20
  21 // You should have received a copy of the GNU General Public License and
  22 // a copy of the GCC Runtime Library Exception along with this program;
  23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 // <http://www.gnu.org/licenses/>.
  25
  26 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  27
  28 // Permission to use, copy, modify, sell, and distribute this software
  29 // is hereby granted without fee, provided that the above copyright
  30 // notice appears in all copies, and that both that copyright notice
  31 // and this permission notice appear in supporting documentation. None
  32 // of the above authors, nor IBM Haifa Research Laboratories, make any
  33 // representation about the suitability of this software for any
  34 // purpose. It is provided "as is" without express or implied
  35 // warranty.
  36
  37 /**
  38  * @file cc_hash_table_map_/constructor_destructor_fn_imps.hpp
  39  * Contains implementations of cc_ht_map_'s constructors, destructor,
  40  * and related functions.
  41  */
  42
  43 PB_DS_CLASS_T_DEC
  44 typename PB_DS_CLASS_C_DEC::entry_allocator
  45 PB_DS_CLASS_C_DEC::s_entry_allocator;
  46
  47 PB_DS_CLASS_T_DEC
  48 typename PB_DS_CLASS_C_DEC::entry_pointer_allocator
  49 PB_DS_CLASS_C_DEC::s_entry_pointer_allocator;
  50
  51 PB_DS_CLASS_T_DEC
  52 template<typename It>
  53 void
  54 PB_DS_CLASS_C_DEC::
  55 copy_from_range(It first_it, It last_it)
  56 {
  57   while (first_it != last_it)
  58     insert(*(first_it++));
  59 }
  60
  61 PB_DS_CLASS_T_DEC
  62 PB_DS_CLASS_C_DEC::
  63 PB_DS_CC_HASH_NAME() :
  64   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1)),
  65   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
  66   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
  67 {
  68   initialize();
  69   PB_DS_ASSERT_VALID((*this))
  70 }
  71
  72 PB_DS_CLASS_T_DEC
  73 PB_DS_CLASS_C_DEC::
  74 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn) :
  75   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
  76   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
  77   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
  78 {
  79   initialize();
  80   PB_DS_ASSERT_VALID((*this))
  81 }
  82
  83 PB_DS_CLASS_T_DEC
  84 PB_DS_CLASS_C_DEC::
  85 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn) :
  86   PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
  87   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
  88   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
  89   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
  90 {
  91   std::fill(m_entries, m_entries + m_num_e, (entry_pointer)0);
  92   Resize_Policy::notify_cleared();
  93   ranged_hash_fn_base::notify_resized(m_num_e);
  94   PB_DS_ASSERT_VALID((*this))
  95 }
  96
  97 PB_DS_CLASS_T_DEC
  98 PB_DS_CLASS_C_DEC::
  99 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
 100                    const Comb_Hash_Fn& r_comb_hash_fn) :
 101   PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
 102   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
 103                       r_hash_fn, r_comb_hash_fn),
 104   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
 105   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
 106 {
 107   initialize();
 108   PB_DS_ASSERT_VALID((*this))
 109 }
 110
 111 PB_DS_CLASS_T_DEC
 112 PB_DS_CLASS_C_DEC::
 113 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
 114                    const Comb_Hash_Fn& r_comb_hash_fn,
 115                    const Resize_Policy& r_resize_policy) :
 116   PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
 117   Resize_Policy(r_resize_policy),
 118   ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
 119                       r_hash_fn, r_comb_hash_fn),
 120   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
 121   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
 122 {
 123   initialize();
 124   PB_DS_ASSERT_VALID((*this))
 125 }
 126
 127 PB_DS_CLASS_T_DEC
 128 PB_DS_CLASS_C_DEC::
 129 PB_DS_CC_HASH_NAME(const PB_DS_CLASS_C_DEC& other) :
 130   PB_DS_HASH_EQ_FN_C_DEC(other),
 131   resize_base(other), ranged_hash_fn_base(other),
 132   m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
 133   m_entries(s_entry_pointer_allocator.allocate(m_num_e))
 134 {
 135   initialize();
 136   PB_DS_ASSERT_VALID((*this))
 137     __try
 138       {
 139         copy_from_range(other.begin(), other.end());
 140       }
 141     __catch(...)
 142       {
 143         deallocate_all();
 144         __throw_exception_again;
 145       }
 146   PB_DS_ASSERT_VALID((*this))
 147 }
 148
 149 PB_DS_CLASS_T_DEC
 150 PB_DS_CLASS_C_DEC::
 151 ~PB_DS_CC_HASH_NAME()
 152 { deallocate_all(); }
 153
 154 PB_DS_CLASS_T_DEC
 155 void
 156 PB_DS_CLASS_C_DEC::
 157 swap(PB_DS_CLASS_C_DEC& other)
 158 {
 159   PB_DS_ASSERT_VALID((*this))
 160   PB_DS_ASSERT_VALID(other)
 161
 162   std::swap(m_entries, other.m_entries);
 163   std::swap(m_num_e, other.m_num_e);
 164   std::swap(m_num_used_e, other.m_num_used_e);
 165   ranged_hash_fn_base::swap(other);
 166   hash_eq_fn_base::swap(other);
 167   resize_base::swap(other);
 168
 169   _GLIBCXX_DEBUG_ONLY(debug_base::swap(other));
 170   PB_DS_ASSERT_VALID((*this))
 171   PB_DS_ASSERT_VALID(other)
 172 }
 173
 174 PB_DS_CLASS_T_DEC
 175 void
 176 PB_DS_CLASS_C_DEC::
 177 deallocate_all()
 178 {
 179   clear();
 180   s_entry_pointer_allocator.deallocate(m_entries, m_num_e);
 181 }
 182
 183 PB_DS_CLASS_T_DEC
 184 void
 185 PB_DS_CLASS_C_DEC::
 186 initialize()
 187 {
 188   std::fill(m_entries, m_entries + m_num_e, entry_pointer(0));
 189   Resize_Policy::notify_resized(m_num_e);
 190   Resize_Policy::notify_cleared();
 191   ranged_hash_fn_base::notify_resized(m_num_e);
 192 }