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 const_iterator.hpp 44169691Skan * Contains an iterator class returned by the table's const find and insert 45169691Skan * methods. 46169691Skan */ 47169691Skan 48169691Skan#ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_ITERATOR_HPP 49169691Skan#define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_ITERATOR_HPP 50169691Skan 51169691Skan#include <ext/pb_ds/detail/left_child_next_sibling_heap_/const_point_iterator.hpp> 52169691Skan#include <debug/debug.h> 53169691Skan 54169691Skannamespace pb_ds 55169691Skan{ 56169691Skan namespace detail 57169691Skan { 58169691Skan 59169691Skan#define PB_DS_CLASS_C_DEC \ 60169691Skan left_child_next_sibling_heap_const_iterator_<Node, Allocator> 61169691Skan 62169691Skan#define PB_DS_BASE_C_DEC \ 63169691Skan left_child_next_sibling_heap_node_const_point_iterator_<Node, Allocator> 64169691Skan 65169691Skan // Const point-type iterator. 66169691Skan template<typename Node, class Allocator> 67169691Skan class left_child_next_sibling_heap_const_iterator_ : public PB_DS_BASE_C_DEC 68169691Skan { 69169691Skan 70169691Skan private: 71169691Skan typedef typename PB_DS_BASE_C_DEC::node_pointer node_pointer; 72169691Skan 73169691Skan typedef PB_DS_BASE_C_DEC base_type; 74169691Skan 75169691Skan public: 76169691Skan 77169691Skan // Category. 78169691Skan typedef std::forward_iterator_tag iterator_category; 79169691Skan 80169691Skan // Difference type. 81169691Skan typedef typename Allocator::difference_type difference_type; 82169691Skan 83169691Skan // Iterator's value type. 84169691Skan typedef typename base_type::value_type value_type; 85169691Skan 86169691Skan // Iterator's pointer type. 87169691Skan typedef typename base_type::pointer pointer; 88169691Skan 89169691Skan // Iterator's const pointer type. 90169691Skan typedef typename base_type::const_pointer const_pointer; 91169691Skan 92169691Skan // Iterator's reference type. 93169691Skan typedef typename base_type::reference reference; 94169691Skan 95169691Skan // Iterator's const reference type. 96169691Skan typedef typename base_type::const_reference const_reference; 97169691Skan 98169691Skan public: 99169691Skan 100169691Skan inline 101169691Skan left_child_next_sibling_heap_const_iterator_(node_pointer p_nd) : base_type(p_nd) 102169691Skan { } 103169691Skan 104169691Skan // Default constructor. 105169691Skan inline 106169691Skan left_child_next_sibling_heap_const_iterator_() 107169691Skan { } 108169691Skan 109169691Skan // Copy constructor. 110169691Skan inline 111169691Skan left_child_next_sibling_heap_const_iterator_(const PB_DS_CLASS_C_DEC& other) : base_type(other) 112169691Skan { } 113169691Skan 114169691Skan // Compares content to a different iterator object. 115169691Skan inline bool 116169691Skan operator==(const PB_DS_CLASS_C_DEC& other) const 117169691Skan { return (base_type::m_p_nd == other.m_p_nd); } 118169691Skan 119169691Skan // Compares content (negatively) to a different iterator object. 120169691Skan inline bool 121169691Skan operator!=(const PB_DS_CLASS_C_DEC& other) const 122169691Skan { return (base_type::m_p_nd != other.m_p_nd); } 123169691Skan 124169691Skan inline PB_DS_CLASS_C_DEC& 125169691Skan operator++() 126169691Skan { 127169691Skan _GLIBCXX_DEBUG_ASSERT(base_type::m_p_nd != NULL); 128169691Skan inc(); 129169691Skan return (*this); 130169691Skan } 131169691Skan 132169691Skan inline PB_DS_CLASS_C_DEC 133169691Skan operator++(int) 134169691Skan { 135169691Skan PB_DS_CLASS_C_DEC ret_it(base_type::m_p_nd); 136169691Skan operator++(); 137169691Skan return (ret_it); 138169691Skan } 139169691Skan 140169691Skan private: 141169691Skan void 142169691Skan inc() 143169691Skan { 144169691Skan if (base_type::m_p_nd->m_p_next_sibling != NULL) 145169691Skan { 146169691Skan base_type::m_p_nd = base_type::m_p_nd->m_p_next_sibling; 147169691Skan while (base_type::m_p_nd->m_p_l_child != NULL) 148169691Skan base_type::m_p_nd = base_type::m_p_nd->m_p_l_child; 149169691Skan return; 150169691Skan } 151169691Skan 152169691Skan while (true) 153169691Skan { 154169691Skan node_pointer p_next = base_type::m_p_nd; 155169691Skan base_type::m_p_nd = base_type::m_p_nd->m_p_prev_or_parent; 156169691Skan if (base_type::m_p_nd == NULL || base_type::m_p_nd->m_p_l_child == p_next) 157169691Skan return; 158169691Skan } 159169691Skan } 160169691Skan }; 161169691Skan 162169691Skan#undef PB_DS_CLASS_C_DEC 163169691Skan#undef PB_DS_BASE_C_DEC 164169691Skan 165169691Skan } // namespace detail 166169691Skan} // namespace pb_ds 167169691Skan 168169691Skan#endif 169