1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2018 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 left_child_next_sibling_heap_/point_const_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, typename _Alloc> 55 56 #define PB_DS_CLASS_C_DEC \ 57 left_child_next_sibling_heap_node_point_const_iterator_<Node, _Alloc> 58 59 /// Const point-type iterator. 60 template<typename Node, typename _Alloc> 61 class left_child_next_sibling_heap_node_point_const_iterator_ 62 { 63 protected: 64 typedef typename _Alloc::template rebind<Node>::other::pointer node_pointer; 65 66 public: 67 /// Category. 68 typedef trivial_iterator_tag iterator_category; 69 70 /// Difference type. 71 typedef trivial_iterator_difference_type difference_type; 72 73 /// Iterator's value type. 74 typedef typename Node::value_type value_type; 75 76 /// Iterator's pointer type. 77 typedef 78 typename _Alloc::template rebind< 79 value_type>::other::pointer 80 pointer; 81 82 /// Iterator's const pointer type. 83 typedef 84 typename _Alloc::template rebind< 85 value_type>::other::const_pointer 86 const_pointer; 87 88 /// Iterator's reference type. 89 typedef 90 typename _Alloc::template rebind< 91 value_type>::other::reference 92 reference; 93 94 /// Iterator's const reference type. 95 typedef 96 typename _Alloc::template rebind< 97 value_type>::other::const_reference 98 const_reference; 99 100 inline 101 left_child_next_sibling_heap_node_point_const_iterator_(node_pointer p_nd) : m_p_nd(p_nd) 102 { } 103 104 /// Default constructor. 105 inline 106 left_child_next_sibling_heap_node_point_const_iterator_() : m_p_nd(0) 107 { } 108 109 /// Copy constructor. 110 inline 111 left_child_next_sibling_heap_node_point_const_iterator_(const PB_DS_CLASS_C_DEC& other) : m_p_nd(other.m_p_nd) 112 { } 113 114 /// Access. 115 const_pointer 116 operator->() const 117 { 118 _GLIBCXX_DEBUG_ASSERT(m_p_nd != 0); 119 return &m_p_nd->m_value; 120 } 121 122 /// Access. 123 const_reference 124 operator*() const 125 { 126 _GLIBCXX_DEBUG_ASSERT(m_p_nd != 0); 127 return m_p_nd->m_value; 128 } 129 130 /// Compares content to a different iterator object. 131 bool 132 operator==(const PB_DS_CLASS_C_DEC& other) const 133 { return m_p_nd == other.m_p_nd; } 134 135 /// Compares content (negatively) to a different iterator object. 136 bool 137 operator!=(const PB_DS_CLASS_C_DEC& other) const 138 { return m_p_nd != other.m_p_nd; } 139 140 node_pointer m_p_nd; 141 }; 142 143 #undef PB_DS_CLASS_T_DEC 144 #undef PB_DS_CLASS_C_DEC 145 146 } // namespace detail 147 } // namespace __gnu_pbds 148 149 #endif 150