libstdc++

cc_hash_table_map_/constructor_destructor_fn_imps.hpp
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1 // -*- C++ -*-
2
3 // Copyright (C) 2005-2013 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 }