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 split_join_fn_imps.hpp 44169691Skan * Contains an implementation class for a binary_heap. 45169691Skan */ 46169691Skan 47169691SkanPB_DS_CLASS_T_DEC 48169691Skantemplate<typename Pred> 49169691Skanvoid 50169691SkanPB_DS_CLASS_C_DEC:: 51169691Skansplit(Pred pred, PB_DS_CLASS_C_DEC& other) 52169691Skan{ 53169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 54169691Skan 55169691Skan typedef 56169691Skan typename entry_pred< 57169691Skan value_type, 58169691Skan Pred, 59169691Skan simple_value, 60169691Skan Allocator>::type 61169691Skan pred_t; 62169691Skan 63169691Skan const size_type left = partition(pred_t(pred)); 64169691Skan 65169691Skan _GLIBCXX_DEBUG_ASSERT(m_size >= left); 66169691Skan 67169691Skan const size_type ersd = m_size - left; 68169691Skan 69169691Skan _GLIBCXX_DEBUG_ASSERT(m_size >= ersd); 70169691Skan 71169691Skan const size_type actual_size = 72169691Skan resize_policy::get_new_size_for_arbitrary(left); 73169691Skan 74169691Skan const size_type other_actual_size = 75169691Skan other.get_new_size_for_arbitrary(ersd); 76169691Skan 77169691Skan entry_pointer a_entries = NULL; 78169691Skan entry_pointer a_other_entries = NULL; 79169691Skan 80169691Skan try 81169691Skan { 82169691Skan a_entries = s_entry_allocator.allocate(actual_size); 83169691Skan 84169691Skan a_other_entries = s_entry_allocator.allocate(other_actual_size); 85169691Skan } 86169691Skan catch(...) 87169691Skan { 88169691Skan if (a_entries != NULL) 89169691Skan s_entry_allocator.deallocate(a_entries, actual_size); 90169691Skan 91169691Skan if (a_other_entries != NULL) 92169691Skan s_entry_allocator.deallocate(a_other_entries, other_actual_size); 93169691Skan 94169691Skan __throw_exception_again; 95169691Skan }; 96169691Skan 97169691Skan for (size_type i = 0; i < other.m_size; ++i) 98169691Skan erase_at(other.m_a_entries, i, s_no_throw_copies_ind); 99169691Skan 100169691Skan _GLIBCXX_DEBUG_ASSERT(actual_size >= left); 101169691Skan std::copy(m_a_entries, m_a_entries + left, a_entries); 102169691Skan std::copy(m_a_entries + left, m_a_entries + m_size, a_other_entries); 103169691Skan 104169691Skan s_entry_allocator.deallocate(m_a_entries, m_actual_size); 105169691Skan s_entry_allocator.deallocate(other.m_a_entries, other.m_actual_size); 106169691Skan 107169691Skan m_actual_size = actual_size; 108169691Skan other.m_actual_size = other_actual_size; 109169691Skan 110169691Skan m_size = left; 111169691Skan other.m_size = ersd; 112169691Skan 113169691Skan m_a_entries = a_entries; 114169691Skan other.m_a_entries = a_other_entries; 115169691Skan 116169691Skan std::make_heap(m_a_entries, m_a_entries + m_size, static_cast<entry_cmp& >(*this)); 117169691Skan std::make_heap(other.m_a_entries, other.m_a_entries + other.m_size, static_cast<entry_cmp& >(other)); 118169691Skan 119169691Skan resize_policy::notify_arbitrary(m_actual_size); 120169691Skan other.notify_arbitrary(other.m_actual_size); 121169691Skan 122169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 123169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 124169691Skan } 125169691Skan 126169691SkanPB_DS_CLASS_T_DEC 127169691Skaninline void 128169691SkanPB_DS_CLASS_C_DEC:: 129169691Skanjoin(PB_DS_CLASS_C_DEC& other) 130169691Skan{ 131169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 132169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 133169691Skan 134169691Skan const size_type len = m_size + other.m_size; 135169691Skan const size_type actual_size = resize_policy::get_new_size_for_arbitrary(len); 136169691Skan 137169691Skan entry_pointer a_entries = NULL; 138169691Skan entry_pointer a_other_entries = NULL; 139169691Skan 140169691Skan try 141169691Skan { 142169691Skan a_entries = s_entry_allocator.allocate(actual_size); 143169691Skan a_other_entries = s_entry_allocator.allocate(resize_policy::min_size); 144169691Skan } 145169691Skan catch(...) 146169691Skan { 147169691Skan if (a_entries != NULL) 148169691Skan s_entry_allocator.deallocate(a_entries, actual_size); 149169691Skan 150169691Skan if (a_other_entries != NULL) 151169691Skan s_entry_allocator.deallocate(a_other_entries, resize_policy::min_size); 152169691Skan 153169691Skan __throw_exception_again; 154169691Skan } 155169691Skan 156169691Skan std::copy(m_a_entries, m_a_entries + m_size, a_entries); 157169691Skan std::copy(other.m_a_entries, other.m_a_entries + other.m_size, a_entries + m_size); 158169691Skan 159169691Skan s_entry_allocator.deallocate(m_a_entries, m_actual_size); 160169691Skan m_a_entries = a_entries; 161169691Skan m_size = len; 162169691Skan m_actual_size = actual_size; 163169691Skan 164169691Skan resize_policy::notify_arbitrary(actual_size); 165169691Skan 166169691Skan std::make_heap(m_a_entries, m_a_entries + m_size, static_cast<entry_cmp& >(*this)); 167169691Skan 168169691Skan s_entry_allocator.deallocate(other.m_a_entries, other.m_actual_size); 169169691Skan other.m_a_entries = a_other_entries; 170169691Skan other.m_size = 0; 171169691Skan other.m_actual_size = resize_policy::min_size; 172169691Skan 173169691Skan other.notify_arbitrary(resize_policy::min_size); 174169691Skan 175169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 176169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 177169691Skan} 178169691Skan 179