1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006, 2007, 2008, 2009 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 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 65 std::make_heap(m_a_entries, m_a_entries + m_size, static_cast<entry_cmp& >(*this)); 66 67 _GLIBCXX_DEBUG_ONLY(assert_valid();) 68 } 69 70 PB_DS_CLASS_T_DEC 71 PB_DS_CLASS_C_DEC:: 72 binary_heap_() : 73 m_size(0), 74 m_actual_size(resize_policy::min_size), 75 m_a_entries(s_entry_allocator.allocate(m_actual_size)) 76 { 77 _GLIBCXX_DEBUG_ONLY(assert_valid();) 78 } 79 80 PB_DS_CLASS_T_DEC 81 PB_DS_CLASS_C_DEC:: 82 binary_heap_(const Cmp_Fn& r_cmp_fn) : 83 entry_cmp(r_cmp_fn), 84 m_size(0), 85 m_actual_size(resize_policy::min_size), 86 m_a_entries(s_entry_allocator.allocate(m_actual_size)) 87 { 88 _GLIBCXX_DEBUG_ONLY(assert_valid();) 89 } 90 91 PB_DS_CLASS_T_DEC 92 PB_DS_CLASS_C_DEC:: 93 binary_heap_(const PB_DS_CLASS_C_DEC& other) : 94 entry_cmp(other), 95 resize_policy(other), 96 m_size(0), 97 m_actual_size(other.m_actual_size), 98 m_a_entries(s_entry_allocator.allocate(m_actual_size)) 99 { 100 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 101 _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries); 102 103 const_iterator first_it = other.begin(); 104 const_iterator last_it = other.end(); 105 106 __try 107 { 108 while (first_it != last_it) 109 { 110 insert_value(*first_it, s_no_throw_copies_ind); 111 ++first_it; 112 } 113 } 114 __catch(...) 115 { 116 for (size_type i = 0; i < m_size; ++i) 117 erase_at(m_a_entries, i, s_no_throw_copies_ind); 118 119 s_entry_allocator.deallocate(m_a_entries, m_actual_size); 120 __throw_exception_again; 121 } 122 _GLIBCXX_DEBUG_ONLY(assert_valid();) 123 } 124 125 PB_DS_CLASS_T_DEC 126 void 127 PB_DS_CLASS_C_DEC:: 128 swap(PB_DS_CLASS_C_DEC& other) 129 { 130 _GLIBCXX_DEBUG_ONLY(assert_valid();) 131 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 132 _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries); 133 134 value_swap(other); 135 std::swap((entry_cmp& )(*this), (entry_cmp& )other); 136 _GLIBCXX_DEBUG_ONLY(assert_valid();) 137 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 138 } 139 140 PB_DS_CLASS_T_DEC 141 void 142 PB_DS_CLASS_C_DEC:: 143 value_swap(PB_DS_CLASS_C_DEC& other) 144 { 145 std::swap(m_a_entries, other.m_a_entries); 146 std::swap(m_size, other.m_size); 147 std::swap(m_actual_size, other.m_actual_size); 148 static_cast<resize_policy*>(this)->swap(other); 149 } 150 151 PB_DS_CLASS_T_DEC 152 PB_DS_CLASS_C_DEC:: 153 ~binary_heap_() 154 { 155 for (size_type i = 0; i < m_size; ++i) 156 erase_at(m_a_entries, i, s_no_throw_copies_ind); 157 s_entry_allocator.deallocate(m_a_entries, m_actual_size); 158 } 159 160
