// -*- C++ -*- // Copyright (C) 2005, 2006 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 2, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // You should have received a copy of the GNU General Public License // along with this library; see the file COPYING. If not, write to // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, // MA 02111-1307, USA. // As a special exception, you may use this file as part of a free // software library without restriction. Specifically, if other files // instantiate templates or use macros or inline functions from this // file, or you compile this file and link it with other files to // produce an executable, this file does not by itself cause the // resulting executable to be covered by the GNU General Public // License. This exception does not however invalidate any other // reasons why the executable file might be covered by the GNU General // Public License. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice // and this permission notice appear in supporting documentation. None // of the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied // warranty. /** * @file erase_fn_imps.hpp * Contains an implementation class for left_child_next_sibling_heap_. */ PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: clear() { clear_imp(m_p_root); _GLIBCXX_DEBUG_ASSERT(m_size == 0); m_p_root = NULL; } PB_DS_CLASS_T_DEC inline void PB_DS_CLASS_C_DEC:: actual_erase_node(node_pointer p_nd) { _GLIBCXX_DEBUG_ASSERT(m_size > 0); --m_size; p_nd->~node(); s_node_allocator.deallocate(p_nd, 1); } PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: clear_imp(node_pointer p_nd) { while (p_nd != NULL) { clear_imp(p_nd->m_p_l_child); node_pointer p_next = p_nd->m_p_next_sibling; actual_erase_node(p_nd); p_nd = p_next; } } PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: to_linked_list() { _GLIBCXX_DEBUG_ONLY(assert_valid();) node_pointer p_cur = m_p_root; while (p_cur != NULL) if (p_cur->m_p_l_child != NULL) { node_pointer p_child_next = p_cur->m_p_l_child->m_p_next_sibling; p_cur->m_p_l_child->m_p_next_sibling = p_cur->m_p_next_sibling; p_cur->m_p_next_sibling = p_cur->m_p_l_child; p_cur->m_p_l_child = p_child_next; } else p_cur = p_cur->m_p_next_sibling; #ifdef _GLIBCXX_DEBUG const_node_pointer p_counter = m_p_root; size_type count = 0; while (p_counter != NULL) { ++count; _GLIBCXX_DEBUG_ASSERT(p_counter->m_p_l_child == NULL); p_counter = p_counter->m_p_next_sibling; } _GLIBCXX_DEBUG_ASSERT(count == m_size); #endif } PB_DS_CLASS_T_DEC template<typename Pred> typename PB_DS_CLASS_C_DEC::node_pointer PB_DS_CLASS_C_DEC:: prune(Pred pred) { node_pointer p_cur = m_p_root; m_p_root = NULL; node_pointer p_out = NULL; while (p_cur != NULL) { node_pointer p_next = p_cur->m_p_next_sibling; if (pred(p_cur->m_value)) { p_cur->m_p_next_sibling = p_out; if (p_out != NULL) p_out->m_p_prev_or_parent = p_cur; p_out = p_cur; } else { p_cur->m_p_next_sibling = m_p_root; if (m_p_root != NULL) m_p_root->m_p_prev_or_parent = p_cur; m_p_root = p_cur; } p_cur = p_next; } return p_out; } PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: bubble_to_top(node_pointer p_nd) { node_pointer p_parent = parent(p_nd); while (p_parent != NULL) { swap_with_parent(p_nd, p_parent); p_parent = parent(p_nd); } }