1169691Skan// -*- C++ -*- 2169691Skan 3169691Skan// Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4169691Skan// 5169691Skan// This file is part of the GNU ISO C++ Library. This library is free 6169691Skan// software; you can redistribute it and/or modify it under the terms 7169691Skan// of the GNU General Public License as published by the Free Software 8169691Skan// Foundation; either version 2, or (at your option) any later 9169691Skan// version. 10169691Skan 11169691Skan// This library is distributed in the hope that it will be useful, but 12169691Skan// WITHOUT ANY WARRANTY; without even the implied warranty of 13169691Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14169691Skan// General Public License for more details. 15169691Skan 16169691Skan// You should have received a copy of the GNU General Public License 17169691Skan// along with this library; see the file COPYING. If not, write to 18169691Skan// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19169691Skan// MA 02111-1307, USA. 20169691Skan 21169691Skan// As a special exception, you may use this file as part of a free 22169691Skan// software library without restriction. Specifically, if other files 23169691Skan// instantiate templates or use macros or inline functions from this 24169691Skan// file, or you compile this file and link it with other files to 25169691Skan// produce an executable, this file does not by itself cause the 26169691Skan// resulting executable to be covered by the GNU General Public 27169691Skan// License. This exception does not however invalidate any other 28169691Skan// reasons why the executable file might be covered by the GNU General 29169691Skan// Public License. 30169691Skan 31169691Skan// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32169691Skan 33169691Skan// Permission to use, copy, modify, sell, and distribute this software 34169691Skan// is hereby granted without fee, provided that the above copyright 35169691Skan// notice appears in all copies, and that both that copyright notice 36169691Skan// and this permission notice appear in supporting documentation. None 37169691Skan// of the above authors, nor IBM Haifa Research Laboratories, make any 38169691Skan// representation about the suitability of this software for any 39169691Skan// purpose. It is provided "as is" without express or implied 40169691Skan// warranty. 41169691Skan 42169691Skan/** 43169691Skan * @file insert_fn_imps.hpp 44169691Skan * Contains an implementation class for a binary_heap. 45169691Skan */ 46169691Skan 47169691SkanPB_DS_CLASS_T_DEC 48169691Skaninline typename PB_DS_CLASS_C_DEC::point_iterator 49169691SkanPB_DS_CLASS_C_DEC:: 50169691Skanpush(const_reference r_val) 51169691Skan{ 52169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 53169691Skan 54169691Skan insert_value(r_val, s_no_throw_copies_ind); 55169691Skan 56169691Skan std::push_heap(m_a_entries, m_a_entries + m_size, static_cast<entry_cmp& >(*this)); 57169691Skan 58169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 59169691Skan 60169691Skan return point_iterator(m_a_entries); 61169691Skan} 62169691Skan 63169691SkanPB_DS_CLASS_T_DEC 64169691Skaninline void 65169691SkanPB_DS_CLASS_C_DEC:: 66169691Skaninsert_value(value_type val, true_type) 67169691Skan{ 68169691Skan resize_for_insert_if_needed(); 69169691Skan 70169691Skan m_a_entries[m_size++] = val; 71169691Skan} 72169691Skan 73169691SkanPB_DS_CLASS_T_DEC 74169691Skaninline void 75169691SkanPB_DS_CLASS_C_DEC:: 76169691Skaninsert_value(const_reference r_val, false_type) 77169691Skan{ 78169691Skan resize_for_insert_if_needed(); 79169691Skan 80169691Skan pointer p_new = s_value_allocator.allocate(1); 81169691Skan 82169691Skan cond_dealtor_t cond(p_new); 83169691Skan 84169691Skan new (p_new) value_type(r_val); 85169691Skan 86169691Skan cond.set_no_action(); 87169691Skan 88169691Skan m_a_entries[m_size++] = p_new; 89169691Skan} 90169691Skan 91169691SkanPB_DS_CLASS_T_DEC 92169691Skaninline void 93169691SkanPB_DS_CLASS_C_DEC:: 94169691Skaninsert_entry(entry e) 95169691Skan{ 96169691Skan resize_for_insert_if_needed(); 97169691Skan 98169691Skan m_a_entries[m_size++] = e; 99169691Skan} 100169691Skan 101169691SkanPB_DS_CLASS_T_DEC 102169691Skaninline void 103169691SkanPB_DS_CLASS_C_DEC:: 104169691Skanresize_for_insert_if_needed() 105169691Skan{ 106169691Skan if (!resize_policy::resize_needed_for_grow(m_size)) 107169691Skan { 108169691Skan _GLIBCXX_DEBUG_ASSERT(m_size < m_actual_size); 109169691Skan 110169691Skan return; 111169691Skan } 112169691Skan 113169691Skan const size_type new_actual_size = 114169691Skan resize_policy::get_new_size_for_grow(); 115169691Skan 116169691Skan entry_pointer a_new_entries = s_entry_allocator.allocate(new_actual_size); 117169691Skan 118169691Skan resize_policy::notify_grow_resize(); 119169691Skan 120169691Skan std::copy(m_a_entries, m_a_entries + m_size, a_new_entries); 121169691Skan 122169691Skan s_entry_allocator.deallocate(m_a_entries, m_actual_size); 123169691Skan 124169691Skan m_actual_size = new_actual_size; 125169691Skan 126169691Skan m_a_entries = a_new_entries; 127169691Skan} 128169691Skan 129169691SkanPB_DS_CLASS_T_DEC 130169691Skanvoid 131169691SkanPB_DS_CLASS_C_DEC:: 132169691Skanmodify(point_iterator it, const_reference r_new_val) 133169691Skan{ 134169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 135169691Skan 136169691Skan swap_value_imp(it.m_p_e, r_new_val, s_no_throw_copies_ind); 137169691Skan 138169691Skan fix(it.m_p_e); 139169691Skan 140169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 141169691Skan } 142169691Skan 143169691SkanPB_DS_CLASS_T_DEC 144169691Skanvoid 145169691SkanPB_DS_CLASS_C_DEC:: 146169691Skanfix(entry_pointer p_e) 147169691Skan{ 148169691Skan size_type i = p_e - m_a_entries; 149169691Skan 150169691Skan if (i > 0&& entry_cmp::operator()(m_a_entries[parent(i)], m_a_entries[i])) 151169691Skan { 152169691Skan size_type parent_i = parent(i); 153169691Skan 154169691Skan while (i > 0&& entry_cmp::operator()(m_a_entries[parent_i], m_a_entries[i])) 155169691Skan { 156169691Skan std::swap(m_a_entries[i], m_a_entries[parent_i]); 157169691Skan 158169691Skan i = parent_i; 159169691Skan 160169691Skan parent_i = parent(i); 161169691Skan } 162169691Skan 163169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 164169691Skan 165169691Skan return; 166169691Skan } 167169691Skan 168169691Skan while (i < m_size) 169169691Skan { 170169691Skan const size_type left_child_i = left_child(i); 171169691Skan const size_type right_child_i = right_child(i); 172169691Skan 173169691Skan _GLIBCXX_DEBUG_ASSERT(right_child_i > left_child_i); 174169691Skan 175169691Skan const bool smaller_than_left_child = 176169691Skan left_child_i < m_size&& 177169691Skan entry_cmp::operator()(m_a_entries[i], m_a_entries[left_child_i]); 178169691Skan 179169691Skan const bool smaller_than_right_child = 180169691Skan right_child_i < m_size&& 181169691Skan entry_cmp::operator()(m_a_entries[i], m_a_entries[right_child_i]); 182169691Skan 183169691Skan const bool swap_with_r_child = smaller_than_right_child&& (!smaller_than_left_child || 184169691Skan entry_cmp::operator()(m_a_entries[left_child_i], m_a_entries[right_child_i])); 185169691Skan 186169691Skan const bool swap_with_l_child = !swap_with_r_child&& smaller_than_left_child; 187169691Skan 188169691Skan if (swap_with_l_child) 189169691Skan { 190169691Skan std::swap(m_a_entries[i], m_a_entries[left_child_i]); 191169691Skan 192169691Skan i = left_child_i; 193169691Skan } 194169691Skan else if (swap_with_r_child) 195169691Skan { 196169691Skan std::swap(m_a_entries[i], m_a_entries[right_child_i]); 197169691Skan 198169691Skan i = right_child_i; 199169691Skan } 200169691Skan else 201169691Skan i = m_size; 202169691Skan } 203169691Skan} 204169691Skan 205169691SkanPB_DS_CLASS_T_DEC 206169691Skaninline void 207169691SkanPB_DS_CLASS_C_DEC:: 208169691Skanswap_value_imp(entry_pointer p_e, value_type new_val, true_type) 209169691Skan{ 210169691Skan * p_e = new_val; 211169691Skan} 212169691Skan 213169691SkanPB_DS_CLASS_T_DEC 214169691Skaninline void 215169691SkanPB_DS_CLASS_C_DEC:: 216169691Skanswap_value_imp(entry_pointer p_e, const_reference r_new_val, false_type) 217169691Skan{ 218169691Skan value_type tmp(r_new_val); 219169691Skan (*p_e)->swap(tmp); 220169691Skan} 221