1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2013 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 binary_heap_/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_BINARY_HEAP_CONST_ITERATOR_HPP 43 #define PB_DS_BINARY_HEAP_CONST_ITERATOR_HPP 44 45 #include <ext/pb_ds/detail/binary_heap_/point_const_iterator.hpp> 46 #include <debug/debug.h> 47 48 namespace __gnu_pbds 49 { 50 namespace detail 51 { 52 #define PB_DS_BIN_HEAP_CIT_BASE \ 53 binary_heap_point_const_iterator_<Value_Type, Entry, Simple, _Alloc> 54 55 /// Const point-type iterator. 56 template<typename Value_Type, 57 typename Entry, 58 bool Simple, 59 typename _Alloc> 60 class binary_heap_const_iterator_ : public PB_DS_BIN_HEAP_CIT_BASE 61 { 62 private: 63 typedef PB_DS_BIN_HEAP_CIT_BASE base_type; 64 typedef typename base_type::entry_pointer entry_pointer; 65 66 public: 67 /// Category. 68 typedef std::forward_iterator_tag iterator_category; 69 70 /// Difference type. 71 typedef typename _Alloc::difference_type difference_type; 72 73 /// Iterator's value type. 74 typedef typename base_type::value_type value_type; 75 76 /// Iterator's pointer type. 77 typedef typename base_type::pointer pointer; 78 79 /// Iterator's const pointer type. 80 typedef typename base_type::const_pointer const_pointer; 81 82 /// Iterator's reference type. 83 typedef typename base_type::reference reference; 84 85 /// Iterator's const reference type. 86 typedef typename base_type::const_reference const_reference; 87 88 inline 89 binary_heap_const_iterator_(entry_pointer p_e) : base_type(p_e) 90 { } 91 92 /// Default constructor. 93 inline 94 binary_heap_const_iterator_() 95 { } 96 97 /// Copy constructor. 98 inline 99 binary_heap_const_iterator_(const binary_heap_const_iterator_& other) 100 : base_type(other) 101 { } 102 103 /// Compares content to a different iterator object. 104 inline bool 105 operator==(const binary_heap_const_iterator_& other) const 106 { return base_type::m_p_e == other.m_p_e; } 107 108 /// Compares content (negatively) to a different iterator object. 109 inline bool 110 operator!=(const binary_heap_const_iterator_& other) const 111 { return base_type::m_p_e != other.m_p_e; } 112 113 inline binary_heap_const_iterator_& 114 operator++() 115 { 116 _GLIBCXX_DEBUG_ASSERT(base_type::m_p_e != 0); 117 inc(); 118 return *this; 119 } 120 121 inline binary_heap_const_iterator_ 122 operator++(int) 123 { 124 binary_heap_const_iterator_ ret_it(base_type::m_p_e); 125 operator++(); 126 return ret_it; 127 } 128 129 private: 130 void 131 inc() 132 { ++base_type::m_p_e; } 133 }; 134 135 #undef PB_DS_BIN_HEAP_CIT_BASE 136 } // namespace detail 137 } // namespace __gnu_pbds 138 139 #endif 140
