libstdc++
unordered_iterator/const_iterator.hpp
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// -*- C++ -*-
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// Copyright (C) 2005-2013 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// warranty.
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/**
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* @file unordered_iterator/const_iterator.hpp
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* Contains an iterator class used for const ranging over the elements of the
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* table.
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*/
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/// Const range-type iterator.
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class
const_iterator_
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:
public
point_const_iterator_
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{
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public
:
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/// Category.
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typedef
std::forward_iterator_tag
iterator_category
;
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/// Difference type.
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typedef
typename
_Alloc::difference_type
difference_type
;
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/// Iterator's value type.
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typedef
value_type_
value_type
;
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/// Iterator's pointer type.
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typedef
pointer_
pointer
;
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/// Iterator's const pointer type.
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typedef
const_pointer_
const_pointer
;
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/// Iterator's reference type.
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typedef
reference_
reference
;
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/// Iterator's const reference type.
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typedef
const_reference_
const_reference
;
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/// Default constructor.
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const_iterator_
() :
m_p_tbl
(0)
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{ }
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/// Increments.
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const_iterator_
&
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operator++
()
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{
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m_p_tbl
->inc_it_state(base_type::m_p_value, m_pos);
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return
*
this
;
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}
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/// Increments.
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const_iterator_
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operator++
(
int
)
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{
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const_iterator_
ret =*
this
;
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m_p_tbl
->inc_it_state(base_type::m_p_value, m_pos);
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return
ret;
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}
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protected
:
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typedef
point_const_iterator_
base_type;
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/**
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* Constructor used by the table to initiate the generalized
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* pointer and position (e.g., this is called from within a find()
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* of a table.
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* */
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const_iterator_
(const_pointer_ p_value, PB_DS_GEN_POS pos,
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const
PB_DS_CLASS_C_DEC* p_tbl)
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:
point_const_iterator_
(p_value),
m_p_tbl
(p_tbl), m_pos(pos)
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{ }
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/**
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* Pointer to the table object which created the iterator (used for
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* incrementing its position.
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* */
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const
PB_DS_CLASS_C_DEC*
m_p_tbl
;
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PB_DS_GEN_POS m_pos;
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friend
class
PB_DS_CLASS_C_DEC;
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};
include
ext
pb_ds
detail
unordered_iterator
const_iterator.hpp
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