r_erase_fn_imps.hpp revision 285830
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 r_erase_fn_imps.hpp 44 * Contains an implementation class for bin_search_tree_. 45 */ 46 47PB_DS_CLASS_T_DEC 48inline void 49PB_DS_CLASS_C_DEC:: 50actual_erase_node(node_pointer p_z) 51{ 52 _GLIBCXX_DEBUG_ASSERT(m_size > 0); 53 --m_size; 54 _GLIBCXX_DEBUG_ONLY(erase_existing(PB_DS_V2F(p_z->m_value))); 55 p_z->~node(); 56 s_node_allocator.deallocate(p_z, 1); 57} 58 59PB_DS_CLASS_T_DEC 60inline void 61PB_DS_CLASS_C_DEC:: 62update_min_max_for_erased_node(node_pointer p_z) 63{ 64 if (m_size == 1) 65 { 66 m_p_head->m_p_left = m_p_head->m_p_right = m_p_head; 67 return; 68 } 69 70 if (m_p_head->m_p_left == p_z) 71 { 72 iterator it(p_z); 73 ++it; 74 m_p_head->m_p_left = it.m_p_nd; 75 } 76 else if (m_p_head->m_p_right == p_z) 77 { 78 iterator it(p_z); 79 --it; 80 m_p_head->m_p_right = it.m_p_nd; 81 } 82} 83 84PB_DS_CLASS_T_DEC 85void 86PB_DS_CLASS_C_DEC:: 87clear() 88{ 89 _GLIBCXX_DEBUG_ONLY(assert_valid(true, true);) 90 clear_imp(m_p_head->m_p_parent); 91 m_size = 0; 92 initialize(); 93 _GLIBCXX_DEBUG_ONLY(map_debug_base::clear();) 94 _GLIBCXX_DEBUG_ONLY(assert_valid(true, true);) 95} 96 97PB_DS_CLASS_T_DEC 98void 99PB_DS_CLASS_C_DEC:: 100clear_imp(node_pointer p_nd) 101{ 102 if (p_nd == NULL) 103 return; 104 clear_imp(p_nd->m_p_left); 105 clear_imp(p_nd->m_p_right); 106 p_nd->~Node(); 107 s_node_allocator.deallocate(p_nd, 1); 108} 109 110