1 // -*- C++ -*-
2
3 // Copyright (C) 2005, 2006 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 2, 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 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING. If not, write to
18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19 // MA 02111-1307, USA.
20
21 // As a special exception, you may use this file as part of a free
22 // software library without restriction. Specifically, if other files
23 // instantiate templates or use macros or inline functions from this
24 // file, or you compile this file and link it with other files to
25 // produce an executable, this file does not by itself cause the
26 // resulting executable to be covered by the GNU General Public
27 // License. This exception does not however invalidate any other
28 // reasons why the executable file might be covered by the GNU General
29 // Public License.
30
31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
32
33 // Permission to use, copy, modify, sell, and distribute this software
34 // is hereby granted without fee, provided that the above copyright
35 // notice appears in all copies, and that both that copyright notice
36 // and this permission notice appear in supporting documentation. None
37 // of the above authors, nor IBM Haifa Research Laboratories, make any
38 // representation about the suitability of this software for any
39 // purpose. It is provided "as is" without express or implied
40 // warranty.
41
42 /**
43 * @file constructors_destructor_fn_imps.hpp
44 * Contains an implementation class for binary_heap_.
45 */
46
47 PB_DS_CLASS_T_DEC
48 typename PB_DS_CLASS_C_DEC::entry_allocator
49 PB_DS_CLASS_C_DEC::s_entry_allocator;
50
51 PB_DS_CLASS_T_DEC
52 typename PB_DS_CLASS_C_DEC::value_allocator
53 PB_DS_CLASS_C_DEC::s_value_allocator;
54
55 PB_DS_CLASS_T_DEC
56 typename PB_DS_CLASS_C_DEC::no_throw_copies_t
57 PB_DS_CLASS_C_DEC::s_no_throw_copies_ind;
58
59 PB_DS_CLASS_T_DEC
60 template<typename It>
61 void
62 PB_DS_CLASS_C_DEC::
copy_from_range(It first_it,It last_it)63 copy_from_range(It first_it, It last_it)
64 {
65 while (first_it != last_it)
66 {
67 insert_value(*first_it, s_no_throw_copies_ind);
68 ++first_it;
69 }
70
71 std::make_heap(m_a_entries, m_a_entries + m_size, static_cast<entry_cmp& >(*this));
72
73 _GLIBCXX_DEBUG_ONLY(assert_valid();)
74 }
75
76 PB_DS_CLASS_T_DEC
77 PB_DS_CLASS_C_DEC::
binary_heap_()78 binary_heap_() :
79 m_size(0),
80 m_actual_size(resize_policy::min_size),
81 m_a_entries(s_entry_allocator.allocate(m_actual_size))
82 {
83 _GLIBCXX_DEBUG_ONLY(assert_valid();)
84 }
85
86 PB_DS_CLASS_T_DEC
87 PB_DS_CLASS_C_DEC::
binary_heap_(const Cmp_Fn & r_cmp_fn)88 binary_heap_(const Cmp_Fn& r_cmp_fn) :
89 entry_cmp(r_cmp_fn),
90 m_size(0),
91 m_actual_size(resize_policy::min_size),
92 m_a_entries(s_entry_allocator.allocate(m_actual_size))
93 {
94 _GLIBCXX_DEBUG_ONLY(assert_valid();)
95 }
96
97 PB_DS_CLASS_T_DEC
98 PB_DS_CLASS_C_DEC::
binary_heap_(const PB_DS_CLASS_C_DEC & other)99 binary_heap_(const PB_DS_CLASS_C_DEC& other) :
100 entry_cmp(other),
101 resize_policy(other),
102 m_size(0),
103 m_actual_size(other.m_actual_size),
104 m_a_entries(s_entry_allocator.allocate(m_actual_size))
105 {
106 _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
107 _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
108
109 const_iterator first_it = other.begin();
110 const_iterator last_it = other.end();
111
112 try
113 {
114 while (first_it != last_it)
115 {
116 insert_value(*first_it, s_no_throw_copies_ind);
117 ++first_it;
118 }
119 }
120 catch(...)
121 {
122 for (size_type i = 0; i < m_size; ++i)
123 erase_at(m_a_entries, i, s_no_throw_copies_ind);
124
125 s_entry_allocator.deallocate(m_a_entries, m_actual_size);
126 __throw_exception_again;
127 }
128 _GLIBCXX_DEBUG_ONLY(assert_valid();)
129 }
130
131 PB_DS_CLASS_T_DEC
132 void
133 PB_DS_CLASS_C_DEC::
swap(PB_DS_CLASS_C_DEC & other)134 swap(PB_DS_CLASS_C_DEC& other)
135 {
136 _GLIBCXX_DEBUG_ONLY(assert_valid();)
137 _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
138 _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
139
140 value_swap(other);
141 std::swap((entry_cmp& )(*this), (entry_cmp& )other);
142 _GLIBCXX_DEBUG_ONLY(assert_valid();)
143 _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
144 }
145
146 PB_DS_CLASS_T_DEC
147 void
148 PB_DS_CLASS_C_DEC::
value_swap(PB_DS_CLASS_C_DEC & other)149 value_swap(PB_DS_CLASS_C_DEC& other)
150 {
151 std::swap(m_a_entries, other.m_a_entries);
152 std::swap(m_size, other.m_size);
153 std::swap(m_actual_size, other.m_actual_size);
154 static_cast<resize_policy*>(this)->swap(other);
155 }
156
157 PB_DS_CLASS_T_DEC
158 PB_DS_CLASS_C_DEC::
~binary_heap_()159 ~binary_heap_()
160 {
161 for (size_type i = 0; i < m_size; ++i)
162 erase_at(m_a_entries, i, s_no_throw_copies_ind);
163 s_entry_allocator.deallocate(m_a_entries, m_actual_size);
164 }
165
166