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 binary_heap_/constructors_destructor_fn_imps.hpp
38 * Contains an implementation class for binary_heap_.
39 */
40
41PB_DS_CLASS_T_DEC
42typename PB_DS_CLASS_C_DEC::entry_allocator
43PB_DS_CLASS_C_DEC::s_entry_allocator;
44
45PB_DS_CLASS_T_DEC
46typename PB_DS_CLASS_C_DEC::value_allocator
47PB_DS_CLASS_C_DEC::s_value_allocator;
48
49PB_DS_CLASS_T_DEC
50typename PB_DS_CLASS_C_DEC::no_throw_copies_t
51PB_DS_CLASS_C_DEC::s_no_throw_copies_ind;
52
53PB_DS_CLASS_T_DEC
54template<typename It>
55void
56PB_DS_CLASS_C_DEC::
57copy_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
68PB_DS_CLASS_T_DEC
69PB_DS_CLASS_C_DEC::
70binary_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
75PB_DS_CLASS_T_DEC
76PB_DS_CLASS_C_DEC::
77binary_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
82PB_DS_CLASS_T_DEC
83PB_DS_CLASS_C_DEC::
84binary_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
107PB_DS_CLASS_T_DEC
108void
109PB_DS_CLASS_C_DEC::
110swap(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
121PB_DS_CLASS_T_DEC
122void
123PB_DS_CLASS_C_DEC::
124value_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
132PB_DS_CLASS_T_DEC
133PB_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}
140