1// -*- C++ -*-
2
3// Copyright (C) 2005-2015 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
42PB_DS_CLASS_T_DEC
43typename PB_DS_CLASS_C_DEC::entry_allocator
44PB_DS_CLASS_C_DEC::s_entry_allocator;
45
46PB_DS_CLASS_T_DEC
47typename PB_DS_CLASS_C_DEC::entry_pointer_allocator
48PB_DS_CLASS_C_DEC::s_entry_pointer_allocator;
49
50PB_DS_CLASS_T_DEC
51template<typename It>
52void
53PB_DS_CLASS_C_DEC::
54copy_from_range(It first_it, It last_it)
55{
56  while (first_it != last_it)
57    insert(*(first_it++));
58}
59
60PB_DS_CLASS_T_DEC
61PB_DS_CLASS_C_DEC::
62PB_DS_CC_HASH_NAME() :
63  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1)),
64  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
65  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
66{
67  initialize();
68  PB_DS_ASSERT_VALID((*this))
69}
70
71PB_DS_CLASS_T_DEC
72PB_DS_CLASS_C_DEC::
73PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn) :
74  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
75  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
76  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
77{
78  initialize();
79  PB_DS_ASSERT_VALID((*this))
80}
81
82PB_DS_CLASS_T_DEC
83PB_DS_CLASS_C_DEC::
84PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn) :
85  PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
86  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
87  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
88  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
89{
90  std::fill(m_entries, m_entries + m_num_e, (entry_pointer)0);
91  Resize_Policy::notify_cleared();
92  ranged_hash_fn_base::notify_resized(m_num_e);
93  PB_DS_ASSERT_VALID((*this))
94}
95
96PB_DS_CLASS_T_DEC
97PB_DS_CLASS_C_DEC::
98PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
99		   const Comb_Hash_Fn& r_comb_hash_fn) :
100  PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
101  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
102		      r_hash_fn, r_comb_hash_fn),
103  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
104  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
105{
106  initialize();
107  PB_DS_ASSERT_VALID((*this))
108}
109
110PB_DS_CLASS_T_DEC
111PB_DS_CLASS_C_DEC::
112PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
113		   const Comb_Hash_Fn& r_comb_hash_fn,
114		   const Resize_Policy& r_resize_policy) :
115  PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
116  Resize_Policy(r_resize_policy),
117  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
118		      r_hash_fn, r_comb_hash_fn),
119  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
120  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
121{
122  initialize();
123  PB_DS_ASSERT_VALID((*this))
124}
125
126PB_DS_CLASS_T_DEC
127PB_DS_CLASS_C_DEC::
128PB_DS_CC_HASH_NAME(const PB_DS_CLASS_C_DEC& other) :
129  PB_DS_HASH_EQ_FN_C_DEC(other),
130  resize_base(other), ranged_hash_fn_base(other),
131  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
132  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
133{
134  initialize();
135  PB_DS_ASSERT_VALID((*this))
136    __try
137      {
138	copy_from_range(other.begin(), other.end());
139      }
140    __catch(...)
141      {
142	deallocate_all();
143	__throw_exception_again;
144      }
145  PB_DS_ASSERT_VALID((*this))
146}
147
148PB_DS_CLASS_T_DEC
149PB_DS_CLASS_C_DEC::
150~PB_DS_CC_HASH_NAME()
151{ deallocate_all(); }
152
153PB_DS_CLASS_T_DEC
154void
155PB_DS_CLASS_C_DEC::
156swap(PB_DS_CLASS_C_DEC& other)
157{
158  PB_DS_ASSERT_VALID((*this))
159  PB_DS_ASSERT_VALID(other)
160
161  std::swap(m_entries, other.m_entries);
162  std::swap(m_num_e, other.m_num_e);
163  std::swap(m_num_used_e, other.m_num_used_e);
164  ranged_hash_fn_base::swap(other);
165  hash_eq_fn_base::swap(other);
166  resize_base::swap(other);
167
168  _GLIBCXX_DEBUG_ONLY(debug_base::swap(other));
169  PB_DS_ASSERT_VALID((*this))
170  PB_DS_ASSERT_VALID(other)
171}
172
173PB_DS_CLASS_T_DEC
174void
175PB_DS_CLASS_C_DEC::
176deallocate_all()
177{
178  clear();
179  s_entry_pointer_allocator.deallocate(m_entries, m_num_e);
180}
181
182PB_DS_CLASS_T_DEC
183void
184PB_DS_CLASS_C_DEC::
185initialize()
186{
187  std::fill(m_entries, m_entries + m_num_e, entry_pointer(0));
188  Resize_Policy::notify_resized(m_num_e);
189  Resize_Policy::notify_cleared();
190  ranged_hash_fn_base::notify_resized(m_num_e);
191}
192