libstdc++
cc_hash_table_map_/constructor_destructor_fn_imps.hpp
Go to the documentation of this file.
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 
42 PB_DS_CLASS_T_DEC
43 typename PB_DS_CLASS_C_DEC::entry_allocator
44 PB_DS_CLASS_C_DEC::s_entry_allocator;
45 
46 PB_DS_CLASS_T_DEC
47 typename PB_DS_CLASS_C_DEC::entry_pointer_allocator
48 PB_DS_CLASS_C_DEC::s_entry_pointer_allocator;
49 
50 PB_DS_CLASS_T_DEC
51 template<typename It>
52 void
53 PB_DS_CLASS_C_DEC::
54 copy_from_range(It first_it, It last_it)
55 {
56  while (first_it != last_it)
57  insert(*(first_it++));
58 }
59 
60 PB_DS_CLASS_T_DEC
61 PB_DS_CLASS_C_DEC::
62 PB_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 
71 PB_DS_CLASS_T_DEC
72 PB_DS_CLASS_C_DEC::
73 PB_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 
82 PB_DS_CLASS_T_DEC
83 PB_DS_CLASS_C_DEC::
84 PB_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 
96 PB_DS_CLASS_T_DEC
97 PB_DS_CLASS_C_DEC::
98 PB_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 
110 PB_DS_CLASS_T_DEC
111 PB_DS_CLASS_C_DEC::
112 PB_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 
126 PB_DS_CLASS_T_DEC
127 PB_DS_CLASS_C_DEC::
128 PB_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 
148 PB_DS_CLASS_T_DEC
149 PB_DS_CLASS_C_DEC::
150 ~PB_DS_CC_HASH_NAME()
151 { deallocate_all(); }
152 
153 PB_DS_CLASS_T_DEC
154 void
155 PB_DS_CLASS_C_DEC::
156 swap(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 
173 PB_DS_CLASS_T_DEC
174 void
175 PB_DS_CLASS_C_DEC::
176 deallocate_all()
177 {
178  clear();
179  s_entry_pointer_allocator.deallocate(m_entries, m_num_e);
180 }
181 
182 PB_DS_CLASS_T_DEC
183 void
184 PB_DS_CLASS_C_DEC::
185 initialize()
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 }
ISO C++ entities toplevel namespace is std.