1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006 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 2, 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 // You should have received a copy of the GNU General Public License 17 // along with this library; see the file COPYING. If not, write to 18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19 // MA 02111-1307, USA. 20 21 // As a special exception, you may use this file as part of a free 22 // software library without restriction. Specifically, if other files 23 // instantiate templates or use macros or inline functions from this 24 // file, or you compile this file and link it with other files to 25 // produce an executable, this file does not by itself cause the 26 // resulting executable to be covered by the GNU General Public 27 // License. This exception does not however invalidate any other 28 // reasons why the executable file might be covered by the GNU General 29 // Public License. 30 31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33 // Permission to use, copy, modify, sell, and distribute this software 34 // is hereby granted without fee, provided that the above copyright 35 // notice appears in all copies, and that both that copyright notice 36 // and this permission notice appear in supporting documentation. None 37 // of the above authors, nor IBM Haifa Research Laboratories, make any 38 // representation about the suitability of this software for any 39 // purpose. It is provided "as is" without express or implied 40 // warranty. 41 42 /** 43 * @file const_iterator.hpp 44 * Contains an iterator class used for const ranging over the elements of the 45 * table. 46 */ 47 48 // Const range-type iterator. 49 class const_iterator_ : 50 public const_point_iterator_ 51 52 { 53 54 public: 55 56 // Category. 57 typedef std::forward_iterator_tag iterator_category; 58 59 // Difference type. 60 typedef typename Allocator::difference_type difference_type; 61 62 // Iterator's value type. 63 typedef value_type_ value_type; 64 65 // Iterator's pointer type. 66 typedef pointer_ pointer; 67 68 // Iterator's const pointer type. 69 typedef const_pointer_ const_pointer; 70 71 // Iterator's reference type. 72 typedef reference_ reference; 73 74 // Iterator's const reference type. 75 typedef const_reference_ const_reference; 76 77 public: 78 79 // Default constructor. 80 inline const_iterator_()81 const_iterator_() 82 83 : m_p_tbl(NULL) 84 { } 85 86 // Increments. 87 inline const_iterator_& operator ++()88 operator++() 89 { 90 m_p_tbl->inc_it_state(base_type::m_p_value, m_pos); 91 92 return (*this); 93 } 94 95 // Increments. 96 inline const_iterator_ operator ++(int)97 operator++(int) 98 { 99 const_iterator_ ret =* this; 100 101 m_p_tbl->inc_it_state(base_type::m_p_value, m_pos); 102 103 return (ret); 104 } 105 106 protected: 107 108 typedef const_point_iterator_ base_type; 109 110 protected: 111 112 /** 113 * Constructor used by the table to initiate the generalized 114 * pointer and position (e.g., this is called from within a find() 115 * of a table. 116 * */ 117 inline const_iterator_(const_pointer_ p_value,PB_DS_GEN_POS pos,const PB_DS_CLASS_C_DEC * p_tbl)118 const_iterator_(const_pointer_ p_value, PB_DS_GEN_POS pos, const PB_DS_CLASS_C_DEC* p_tbl) : const_point_iterator_(p_value), 119 m_p_tbl(p_tbl), 120 m_pos(pos) 121 { } 122 123 protected: 124 125 /** 126 * Pointer to the table object which created the iterator (used for 127 * incrementing its position. 128 * */ 129 const PB_DS_CLASS_C_DEC* m_p_tbl; 130 131 PB_DS_GEN_POS m_pos; 132 133 friend class PB_DS_CLASS_C_DEC; 134 }; 135 136