libstdc++

binary_heap_/constructors_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 binary_heap_/constructors_destructor_fn_imps.hpp
38 * Contains an implementation class for binary_heap_.
39 */
40
41 PB_DS_CLASS_T_DEC
42 typename PB_DS_CLASS_C_DEC::entry_allocator
43 PB_DS_CLASS_C_DEC::s_entry_allocator;
44
45 PB_DS_CLASS_T_DEC
46 typename PB_DS_CLASS_C_DEC::value_allocator
47 PB_DS_CLASS_C_DEC::s_value_allocator;
48
49 PB_DS_CLASS_T_DEC
50 typename PB_DS_CLASS_C_DEC::no_throw_copies_t
51 PB_DS_CLASS_C_DEC::s_no_throw_copies_ind;
52
53 PB_DS_CLASS_T_DEC
54 template<typename It>
55 void
56 PB_DS_CLASS_C_DEC::
57 copy_from_range(It first_it, It last_it)
58 {
59 while (first_it != last_it)
60 {
61 insert_value(*first_it, s_no_throw_copies_ind);
62 ++first_it;
63 }
64 make_heap();
65 PB_DS_ASSERT_VALID((*this))
66 }
67
68 PB_DS_CLASS_T_DEC
69 PB_DS_CLASS_C_DEC::
70 binary_heap()
71 : m_size(0), m_actual_size(resize_policy::min_size),
72 m_a_entries(s_entry_allocator.allocate(m_actual_size))
73 { PB_DS_ASSERT_VALID((*this)) }
74
75 PB_DS_CLASS_T_DEC
76 PB_DS_CLASS_C_DEC::
77 binary_heap(const Cmp_Fn& r_cmp_fn)
78 : entry_cmp(r_cmp_fn), m_size(0), m_actual_size(resize_policy::min_size),
79 m_a_entries(s_entry_allocator.allocate(m_actual_size))
80 { PB_DS_ASSERT_VALID((*this)) }
81
82 PB_DS_CLASS_T_DEC
83 PB_DS_CLASS_C_DEC::
84 binary_heap(const PB_DS_CLASS_C_DEC& other)
85 : entry_cmp(other), resize_policy(other), m_size(0),
86 m_actual_size(other.m_actual_size),
87 m_a_entries(s_entry_allocator.allocate(m_actual_size))
88 {
89 PB_DS_ASSERT_VALID(other)
90 _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
91
92 __try
93 {
94 copy_from_range(other.begin(), other.end());
95 }
96 __catch(...)
97 {
98 for (size_type i = 0; i < m_size; ++i)
99 erase_at(m_a_entries, i, s_no_throw_copies_ind);
100
101 s_entry_allocator.deallocate(m_a_entries, m_actual_size);
102 __throw_exception_again;
103 }
104 PB_DS_ASSERT_VALID((*this))
105 }
106
107 PB_DS_CLASS_T_DEC
108 void
109 PB_DS_CLASS_C_DEC::
110 swap(PB_DS_CLASS_C_DEC& other)
111 {
112 PB_DS_ASSERT_VALID((*this))
113 PB_DS_ASSERT_VALID(other)
114 _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
115 value_swap(other);
116 std::swap((entry_cmp&)(*this), (entry_cmp&)other);
117 PB_DS_ASSERT_VALID((*this))
118 PB_DS_ASSERT_VALID(other)
119 }
120
121 PB_DS_CLASS_T_DEC
122 void
123 PB_DS_CLASS_C_DEC::
124 value_swap(PB_DS_CLASS_C_DEC& other)
125 {
126 std::swap(m_a_entries, other.m_a_entries);
127 std::swap(m_size, other.m_size);
128 std::swap(m_actual_size, other.m_actual_size);
129 static_cast<resize_policy*>(this)->swap(other);
130 }
131
132 PB_DS_CLASS_T_DEC
133 PB_DS_CLASS_C_DEC::
134 ~binary_heap()
135 {
136 for (size_type i = 0; i < m_size; ++i)
137 erase_at(m_a_entries, i, s_no_throw_copies_ind);
138 s_entry_allocator.deallocate(m_a_entries, m_actual_size);
139 }