From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libstdc++-v3/include/parallel/iterator.h | 198 +++++++++++++++++++++++++++++++ 1 file changed, 198 insertions(+) create mode 100644 libstdc++-v3/include/parallel/iterator.h (limited to 'libstdc++-v3/include/parallel/iterator.h') diff --git a/libstdc++-v3/include/parallel/iterator.h b/libstdc++-v3/include/parallel/iterator.h new file mode 100644 index 000000000..013855076 --- /dev/null +++ b/libstdc++-v3/include/parallel/iterator.h @@ -0,0 +1,198 @@ +// -*- C++ -*- + +// Copyright (C) 2007, 2008, 2009 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 3, 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. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file parallel/iterator.h + * @brief Helper iterator classes for the std::transform() functions. + * This file is a GNU parallel extension to the Standard C++ Library. + */ + +// Written by Johannes Singler. + +#ifndef _GLIBCXX_PARALLEL_ITERATOR_H +#define _GLIBCXX_PARALLEL_ITERATOR_H 1 + +#include +#include + +namespace __gnu_parallel +{ + /** @brief A pair of iterators. The usual iterator operations are + * applied to both child iterators. + */ + template + class _IteratorPair : public std::pair<_Iterator1, _Iterator2> + { + private: + typedef std::pair<_Iterator1, _Iterator2> _Base; + + public: + typedef _IteratorCategory iterator_category; + typedef void value_type; + + typedef std::iterator_traits<_Iterator1> _TraitsType; + typedef typename _TraitsType::difference_type difference_type; + typedef _IteratorPair* pointer; + typedef _IteratorPair& reference; + + _IteratorPair() { } + + _IteratorPair(const _Iterator1& __first, const _Iterator2& __second) + : _Base(__first, __second) { } + + // Pre-increment operator. + _IteratorPair& + operator++() + { + ++_Base::first; + ++_Base::second; + return *this; + } + + // Post-increment operator. + const _IteratorPair + operator++(int) + { return _IteratorPair(_Base::first++, _Base::second++); } + + // Pre-decrement operator. + _IteratorPair& + operator--() + { + --_Base::first; + --_Base::second; + return *this; + } + + // Post-decrement operator. + const _IteratorPair + operator--(int) + { return _IteratorPair(_Base::first--, _Base::second--); } + + // Type conversion. + operator _Iterator2() const + { return _Base::second; } + + _IteratorPair& + operator=(const _IteratorPair& __other) + { + _Base::first = __other.first; + _Base::second = __other.second; + return *this; + } + + _IteratorPair + operator+(difference_type __delta) const + { return _IteratorPair(_Base::first + __delta, _Base::second + __delta); + } + + difference_type + operator-(const _IteratorPair& __other) const + { return _Base::first - __other.first; } + }; + + + /** @brief A triple of iterators. The usual iterator operations are + applied to all three child iterators. + */ + template + class _IteratorTriple + { + public: + typedef _IteratorCategory iterator_category; + typedef void value_type; + typedef typename std::iterator_traits<_Iterator1>::difference_type + difference_type; + typedef _IteratorTriple* pointer; + typedef _IteratorTriple& reference; + + _Iterator1 _M_first; + _Iterator2 _M_second; + _Iterator3 _M_third; + + _IteratorTriple() { } + + _IteratorTriple(const _Iterator1& __first, const _Iterator2& __second, + const _Iterator3& __third) + { + _M_first = __first; + _M_second = __second; + _M_third = __third; + } + + // Pre-increment operator. + _IteratorTriple& + operator++() + { + ++_M_first; + ++_M_second; + ++_M_third; + return *this; + } + + // Post-increment operator. + const _IteratorTriple + operator++(int) + { return _IteratorTriple(_M_first++, _M_second++, _M_third++); } + + // Pre-decrement operator. + _IteratorTriple& + operator--() + { + --_M_first; + --_M_second; + --_M_third; + return *this; + } + + // Post-decrement operator. + const _IteratorTriple + operator--(int) + { return _IteratorTriple(_M_first--, _M_second--, _M_third--); } + + // Type conversion. + operator _Iterator3() const + { return _M_third; } + + _IteratorTriple& + operator=(const _IteratorTriple& __other) + { + _M_first = __other._M_first; + _M_second = __other._M_second; + _M_third = __other._M_third; + return *this; + } + + _IteratorTriple + operator+(difference_type __delta) const + { return _IteratorTriple(_M_first + __delta, _M_second + __delta, + _M_third + __delta); } + + difference_type + operator-(const _IteratorTriple& __other) const + { return _M_first - __other._M_first; } + }; +} + +#endif /* _GLIBCXX_PARALLEL_ITERATOR_H */ -- cgit v1.2.3