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 iterator.hpp 38 * Contains an iterator_ class used for ranging over the elements of the 39 * table. 40 */ 41 42 /// Range-type iterator. 43 class iterator_ 44 : public const_iterator_ 45 { 46 public: 47 /// Category. 48 typedef std::forward_iterator_tag iterator_category; 49 50 /// Difference type. 51 typedef typename _Alloc::difference_type difference_type; 52 53 /// Iterator's value type. 54 typedef value_type_ value_type; 55 56 /// Iterator's pointer type. 57 typedef pointer_ pointer; 58 59 /// Iterator's const pointer type. 60 typedef const_pointer_ const_pointer; 61 62 /// Iterator's reference type. 63 typedef reference_ reference; 64 65 /// Iterator's const reference type. 66 typedef const_reference_ const_reference; 67 68 /// Default constructor. 69 inline 70 iterator_() 71 : const_iterator_(0, PB_DS_GEN_POS(), 0) { } 72 73 /// Conversion to a point-type iterator. 74 inline 75 operator point_iterator_() 76 { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); } 77 78 /// Conversion to a point-type iterator. 79 inline 80 operator const point_iterator_() const 81 { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); } 82 83 /// Access. 84 pointer 85 operator->() const 86 { 87 _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); 88 return (const_cast<pointer>(base_type::m_p_value)); 89 } 90 91 /// Access. 92 reference 93 operator*() const 94 { 95 _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); 96 return (const_cast<reference>(*base_type::m_p_value)); 97 } 98 99 /// Increments. 100 iterator_& 101 operator++() 102 { 103 base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); 104 return *this; 105 } 106 107 /// Increments. 108 iterator_ 109 operator++(int) 110 { 111 iterator_ ret =* this; 112 base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); 113 return ret; 114 } 115 116 protected: 117 typedef const_iterator_ base_type; 118 119 /** 120 * Constructor used by the table to initiate the generalized 121 * pointer and position (e.g., this is called from within a find() 122 * of a table. 123 * */ 124 inline 125 iterator_(pointer p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl) 126 : const_iterator_(p_value, pos, p_tbl) 127 { } 128 129 friend class PB_DS_CLASS_C_DEC; 130 }; 131
