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 unordered_iterator/const_iterator.hpp 38 * Contains an iterator class used for const ranging over the elements of the 39 * table. 40 */ 41 42 /// Const range-type iterator. 43 class const_iterator_ 44 : public point_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 const_iterator_() : m_p_tbl(0) 70 { } 71 72 /// Increments. 73 const_iterator_& 74 operator++() 75 { 76 m_p_tbl->inc_it_state(base_type::m_p_value, m_pos); 77 return *this; 78 } 79 80 /// Increments. 81 const_iterator_ 82 operator++(int) 83 { 84 const_iterator_ ret =* this; 85 m_p_tbl->inc_it_state(base_type::m_p_value, m_pos); 86 return ret; 87 } 88 89 protected: 90 typedef point_const_iterator_ base_type; 91 92 /** 93 * Constructor used by the table to initiate the generalized 94 * pointer and position (e.g., this is called from within a find() 95 * of a table. 96 * */ 97 const_iterator_(const_pointer_ p_value, PB_DS_GEN_POS pos, 98 const PB_DS_CLASS_C_DEC* p_tbl) 99 : point_const_iterator_(p_value), m_p_tbl(p_tbl), m_pos(pos) 100 { } 101 102 /** 103 * Pointer to the table object which created the iterator (used for 104 * incrementing its position. 105 * */ 106 const PB_DS_CLASS_C_DEC* m_p_tbl; 107 108 PB_DS_GEN_POS m_pos; 109 110 friend class PB_DS_CLASS_C_DEC; 111 }; 112
