1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006, 2009 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 26 27 // Permission to use, copy, modify, sell, and distribute this software 28 // is hereby granted without fee, provided that the above copyright 29 // notice appears in all copies, and that both that copyright notice 30 // and this permission notice appear in supporting documentation. None 31 // of the above authors, nor IBM Haifa Research Laboratories, make any 32 // representation about the suitability of this software for any 33 // purpose. It is provided "as is" without express or implied 34 // warranty. 35 36 /** 37 * @file const_point_iterator.hpp 38 * Contains an iterator class returned by the table's const find and insert 39 * methods. 40 */ 41 42 #ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_FIND_ITERATOR_HPP 43 #define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_FIND_ITERATOR_HPP 44 45 #include <ext/pb_ds/tag_and_trait.hpp> 46 #include <debug/debug.h> 47 48 namespace __gnu_pbds 49 { 50 namespace detail 51 { 52 53 #define PB_DS_CLASS_T_DEC \ 54 template<typename Node, class Allocator> 55 56 #define PB_DS_CLASS_C_DEC \ 57 left_child_next_sibling_heap_node_const_point_iterator_<Node, Allocator> 58 59 // Const point-type iterator. 60 template<typename Node, class Allocator> 61 class left_child_next_sibling_heap_node_const_point_iterator_ 62 { 63 64 protected: 65 typedef typename Allocator::template rebind<Node>::other::pointer node_pointer; 66 67 public: 68 69 // Category. 70 typedef trivial_iterator_tag iterator_category; 71 72 // Difference type. 73 typedef trivial_iterator_difference_type difference_type; 74 75 // Iterator's value type. 76 typedef typename Node::value_type value_type; 77 78 // Iterator's pointer type. 79 typedef 80 typename Allocator::template rebind< 81 value_type>::other::pointer 82 pointer; 83 84 // Iterator's const pointer type. 85 typedef 86 typename Allocator::template rebind< 87 value_type>::other::const_pointer 88 const_pointer; 89 90 // Iterator's reference type. 91 typedef 92 typename Allocator::template rebind< 93 value_type>::other::reference 94 reference; 95 96 // Iterator's const reference type. 97 typedef 98 typename Allocator::template rebind< 99 value_type>::other::const_reference 100 const_reference; 101 102 public: 103 104 inline 105 left_child_next_sibling_heap_node_const_point_iterator_(node_pointer p_nd) : m_p_nd(p_nd) 106 { } 107 108 // Default constructor. 109 inline 110 left_child_next_sibling_heap_node_const_point_iterator_() : m_p_nd(NULL) 111 { } 112 113 // Copy constructor. 114 inline 115 left_child_next_sibling_heap_node_const_point_iterator_(const PB_DS_CLASS_C_DEC& other) : m_p_nd(other.m_p_nd) 116 { } 117 118 // Access. 119 inline const_pointer 120 operator->() const 121 { 122 _GLIBCXX_DEBUG_ASSERT(m_p_nd != NULL); 123 return &m_p_nd->m_value; 124 } 125 126 // Access. 127 inline const_reference 128 operator*() const 129 { 130 _GLIBCXX_DEBUG_ASSERT(m_p_nd != NULL); 131 return m_p_nd->m_value; 132 } 133 134 // Compares content to a different iterator object. 135 inline bool 136 operator==(const PB_DS_CLASS_C_DEC& other) const 137 { return m_p_nd == other.m_p_nd; } 138 139 // Compares content (negatively) to a different iterator object. 140 inline bool 141 operator!=(const PB_DS_CLASS_C_DEC& other) const 142 { return m_p_nd != other.m_p_nd; } 143 144 public: 145 node_pointer m_p_nd; 146 }; 147 148 #undef PB_DS_CLASS_T_DEC 149 #undef PB_DS_CLASS_C_DEC 150 151 } // namespace detail 152 } // namespace __gnu_pbds 153 154 #endif 155
