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_child_iterator.hpp 44169691Skan * Contains a const_iterator for a patricia tree. 45169691Skan */ 46169691Skan 47169691Skanstruct const_iterator 48169691Skan{ 49169691Skanpublic: 50169691Skan typedef std::forward_iterator_tag iterator_category; 51169691Skan 52169691Skan typedef typename Allocator::difference_type difference_type; 53169691Skan 54169691Skan typedef node_pointer value_type; 55169691Skan 56169691Skan typedef node_pointer_pointer pointer; 57169691Skan 58169691Skan typedef node_pointer_reference reference; 59169691Skan 60169691Skanpublic: 61169691Skan inline 62169691Skan const_iterator(node_pointer_pointer p_p_cur = NULL, 63169691Skan node_pointer_pointer p_p_end = NULL) 64169691Skan : m_p_p_cur(p_p_cur), m_p_p_end(p_p_end) 65169691Skan { } 66169691Skan 67169691Skan inline bool 68169691Skan operator==(const const_iterator& other) const 69169691Skan { return m_p_p_cur == other.m_p_p_cur; } 70169691Skan 71169691Skan inline bool 72169691Skan operator!=(const const_iterator& other) const 73169691Skan { return m_p_p_cur != other.m_p_p_cur; } 74169691Skan 75169691Skan inline const_iterator& 76169691Skan operator++() 77169691Skan { 78169691Skan do 79169691Skan ++m_p_p_cur; 80169691Skan while (m_p_p_cur != m_p_p_end&& * m_p_p_cur == NULL); 81169691Skan return *this; 82169691Skan } 83169691Skan 84169691Skan inline const_iterator 85169691Skan operator++(int) 86169691Skan { 87169691Skan const_iterator ret_it(*this); 88169691Skan operator++(); 89169691Skan return ret_it; 90169691Skan } 91169691Skan 92169691Skan const node_pointer_pointer 93169691Skan operator->() const 94169691Skan { 95169691Skan _GLIBCXX_DEBUG_ONLY(assert_referencible();) 96169691Skan return (m_p_p_cur); 97169691Skan } 98169691Skan 99169691Skan const_node_pointer 100169691Skan operator*() const 101169691Skan { 102169691Skan _GLIBCXX_DEBUG_ONLY(assert_referencible();) 103169691Skan return (*m_p_p_cur); 104169691Skan } 105169691Skan 106169691Skanprotected: 107169691Skan#ifdef _GLIBCXX_DEBUG 108169691Skan void 109169691Skan assert_referencible() const 110169691Skan { _GLIBCXX_DEBUG_ASSERT(m_p_p_cur != m_p_p_end&& * m_p_p_cur != NULL); } 111169691Skan#endif 112169691Skan 113169691Skanpublic: 114169691Skan node_pointer_pointer m_p_p_cur; 115169691Skan node_pointer_pointer m_p_p_end; 116169691Skan}; 117169691Skan 118