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 const_point_iterator.hpp 44 * Contains an iterator class returned by the table's const find and insert 45 * methods. 46 */ 47 48 #ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_FIND_ITERATOR_HPP 49 #define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_FIND_ITERATOR_HPP 50 51 #include <ext/pb_ds/tag_and_trait.hpp> 52 #include <debug/debug.h> 53 54 namespace pb_ds 55 { 56 namespace detail 57 { 58 59 #define PB_DS_CLASS_T_DEC \ 60 template<typename Node, class Allocator> 61 62 #define PB_DS_CLASS_C_DEC \ 63 left_child_next_sibling_heap_node_const_point_iterator_<Node, Allocator> 64 65 // Const point-type iterator. 66 template<typename Node, class Allocator> 67 class left_child_next_sibling_heap_node_const_point_iterator_ 68 { 69 70 protected: 71 typedef typename Allocator::template rebind<Node>::other::pointer node_pointer; 72 73 public: 74 75 // Category. 76 typedef trivial_iterator_tag iterator_category; 77 78 // Difference type. 79 typedef trivial_iterator_difference_type difference_type; 80 81 // Iterator's value type. 82 typedef typename Node::value_type value_type; 83 84 // Iterator's pointer type. 85 typedef 86 typename Allocator::template rebind< 87 value_type>::other::pointer 88 pointer; 89 90 // Iterator's const pointer type. 91 typedef 92 typename Allocator::template rebind< 93 value_type>::other::const_pointer 94 const_pointer; 95 96 // Iterator's reference type. 97 typedef 98 typename Allocator::template rebind< 99 value_type>::other::reference 100 reference; 101 102 // Iterator's const reference type. 103 typedef 104 typename Allocator::template rebind< 105 value_type>::other::const_reference 106 const_reference; 107 108 public: 109 110 inline left_child_next_sibling_heap_node_const_point_iterator_(node_pointer p_nd)111 left_child_next_sibling_heap_node_const_point_iterator_(node_pointer p_nd) : m_p_nd(p_nd) 112 { } 113 114 // Default constructor. 115 inline left_child_next_sibling_heap_node_const_point_iterator_()116 left_child_next_sibling_heap_node_const_point_iterator_() : m_p_nd(NULL) 117 { } 118 119 // Copy constructor. 120 inline left_child_next_sibling_heap_node_const_point_iterator_(const PB_DS_CLASS_C_DEC & other)121 left_child_next_sibling_heap_node_const_point_iterator_(const PB_DS_CLASS_C_DEC& other) : m_p_nd(other.m_p_nd) 122 { } 123 124 // Access. 125 inline const_pointer operator ->() const126 operator->() const 127 { 128 _GLIBCXX_DEBUG_ASSERT(m_p_nd != NULL); 129 return &m_p_nd->m_value; 130 } 131 132 // Access. 133 inline const_reference operator *() const134 operator*() const 135 { 136 _GLIBCXX_DEBUG_ASSERT(m_p_nd != NULL); 137 return m_p_nd->m_value; 138 } 139 140 // Compares content to a different iterator object. 141 inline bool operator ==(const PB_DS_CLASS_C_DEC & other) const142 operator==(const PB_DS_CLASS_C_DEC& other) const 143 { return m_p_nd == other.m_p_nd; } 144 145 // Compares content (negatively) to a different iterator object. 146 inline bool operator !=(const PB_DS_CLASS_C_DEC & other) const147 operator!=(const PB_DS_CLASS_C_DEC& other) const 148 { return m_p_nd != other.m_p_nd; } 149 150 public: 151 node_pointer m_p_nd; 152 }; 153 154 #undef PB_DS_CLASS_T_DEC 155 #undef PB_DS_CLASS_C_DEC 156 157 } // namespace detail 158 } // namespace pb_ds 159 160 #endif 161