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Diffstat (limited to 'libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp')
-rw-r--r-- | libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp new file mode 100644 index 00000000000..da13bde5f9c --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/iterator.hpp @@ -0,0 +1,156 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License as published by the Free Software +// Foundation; either version 2, or (at your option) any later +// version. + +// This library is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. + +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, +// MA 02111-1307, USA. + +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. + +// Permission to use, copy, modify, sell, and distribute this software +// is hereby granted without fee, provided that the above copyright +// notice appears in all copies, and that both that copyright notice +// and this permission notice appear in supporting documentation. None +// of the above authors, nor IBM Haifa Research Laboratories, make any +// representation about the suitability of this software for any +// purpose. It is provided "as is" without express or implied +// warranty. + +/** + * @file iterator.hpp + * Contains an iterator_ class used for ranging over the elements of the + * table. + */ + +// Range-type iterator. +class iterator_ : + public const_iterator_ + +{ + +public: + + // Category. + typedef std::forward_iterator_tag iterator_category; + + // Difference type. + typedef typename Allocator::difference_type difference_type; + + // Iterator's value type. + typedef value_type_ value_type; + + // Iterator's pointer type. + typedef pointer_ pointer; + + // Iterator's const pointer type. + typedef const_pointer_ const_pointer; + + // Iterator's reference type. + typedef reference_ reference; + + // Iterator's const reference type. + typedef const_reference_ const_reference; + +public: + + // Default constructor. + inline + iterator_() + + : const_iterator_(NULL, PB_DS_GEN_POS(), NULL) + { } + + // Conversion to a point-type iterator. + inline + operator point_iterator_() + { + return (point_iterator_( + const_cast<pointer>(const_iterator_::m_p_value))); + } + + // Conversion to a point-type iterator. + inline + operator const point_iterator_() const + { + return (point_iterator_( + const_cast<pointer>(const_iterator_::m_p_value))); + } + + // Access. + inline pointer + operator->() const + { + PB_DS_DBG_ASSERT(base_type::m_p_value != NULL); + + return (const_cast<pointer>(base_type::m_p_value)); + } + + // Access. + inline reference + operator*() const + { + PB_DS_DBG_ASSERT(base_type::m_p_value != NULL); + + return (const_cast<reference>(*base_type::m_p_value)); + } + + // Increments. + inline iterator_& + operator++() + { + base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); + + return (*this); + } + + // Increments. + inline iterator_ + operator++(int) + { + iterator_ ret =* this; + + base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); + + return (ret); + } + +protected: + typedef const_iterator_ base_type; + +protected: + + /** + * Constructor used by the table to initiate the generalized + * pointer and position (e.g., this is called from within a find() + * of a table. + * */ + inline + iterator_(pointer p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl) : const_iterator_(p_value, pos, p_tbl) + { } + + friend class PB_DS_CLASS_C_DEC; +}; + |