diff options
Diffstat (limited to 'libstdc++-v3/include/parallel/iterator.h')
| -rw-r--r-- | libstdc++-v3/include/parallel/iterator.h | 288 |
1 files changed, 145 insertions, 143 deletions
diff --git a/libstdc++-v3/include/parallel/iterator.h b/libstdc++-v3/include/parallel/iterator.h index 26b7f331a82..ba20a460d5c 100644 --- a/libstdc++-v3/include/parallel/iterator.h +++ b/libstdc++-v3/include/parallel/iterator.h @@ -1,6 +1,6 @@ // -*- C++ -*- -// Copyright (C) 2007 Free Software Foundation, Inc. +// Copyright (C) 2007, 2008 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 @@ -47,156 +47,158 @@ namespace __gnu_parallel * applied to both child iterators. */ template<typename Iterator1, typename Iterator2, typename IteratorCategory> - class iterator_pair : public std::pair<Iterator1, Iterator2> - { - private: - typedef iterator_pair<Iterator1, Iterator2, IteratorCategory> type; - typedef std::pair<Iterator1, Iterator2> base_type; - - public: - typedef IteratorCategory iterator_category; - typedef void value_type; - - typedef std::iterator_traits<Iterator1> traits_type; - typedef typename traits_type::difference_type difference_type; - typedef type* pointer; - typedef type& reference; - - iterator_pair() { } - - iterator_pair(const Iterator1& first, const Iterator2& second) - : base_type(first, second) { } - - // Pre-increment operator. - type& - operator++() + class iterator_pair : public std::pair<Iterator1, Iterator2> { - ++base_type::first; - ++base_type::second; - return *this; - } - - // Post-increment operator. - const type - operator++(int) - { return type(base_type::first++, base_type::second++); } - - // Pre-decrement operator. - type& - operator--() - { - --base_type::first; - --base_type::second; - return *this; - } - - // Post-decrement operator. - const type - operator--(int) - { return type(base_type::first--, base_type::second--); } - - // Type conversion. - operator Iterator2() const - { return base_type::second; } - - type& - operator=(const type& other) - { - base_type::first = other.first; - base_type::second = other.second; - return *this; - } - - type - operator+(difference_type delta) const - { return type(base_type::first + delta, base_type::second + delta); } - - difference_type - operator-(const type& other) const - { return base_type::first - other.first; } + private: + typedef iterator_pair<Iterator1, Iterator2, IteratorCategory> type; + typedef std::pair<Iterator1, Iterator2> base_type; + + public: + typedef IteratorCategory iterator_category; + typedef void value_type; + + typedef std::iterator_traits<Iterator1> traits_type; + typedef typename traits_type::difference_type difference_type; + typedef type* pointer; + typedef type& reference; + + iterator_pair() { } + + iterator_pair(const Iterator1& first, const Iterator2& second) + : base_type(first, second) { } + + // Pre-increment operator. + type& + operator++() + { + ++base_type::first; + ++base_type::second; + return *this; + } + + // Post-increment operator. + const type + operator++(int) + { return type(base_type::first++, base_type::second++); } + + // Pre-decrement operator. + type& + operator--() + { + --base_type::first; + --base_type::second; + return *this; + } + + // Post-decrement operator. + const type + operator--(int) + { return type(base_type::first--, base_type::second--); } + + // Type conversion. + operator Iterator2() const + { return base_type::second; } + + type& + operator=(const type& other) + { + base_type::first = other.first; + base_type::second = other.second; + return *this; + } + + type + operator+(difference_type delta) const + { return type(base_type::first + delta, base_type::second + delta); } + + difference_type + operator-(const type& other) const + { return base_type::first - other.first; } }; /** @brief A triple of iterators. The usual iterator operations are applied to all three child iterators. */ - template<typename Iterator1, typename Iterator2, typename Iterator3, typename IteratorCategory> - class iterator_triple - { - private: - typedef iterator_triple<Iterator1, Iterator2, Iterator3, IteratorCategory> type; - - public: - typedef IteratorCategory iterator_category; - typedef void value_type; - typedef typename Iterator1::difference_type difference_type; - typedef type* pointer; - typedef type& reference; - - Iterator1 first; - Iterator2 second; - Iterator3 third; - - iterator_triple() { } - - iterator_triple(const Iterator1& _first, const Iterator2& _second, - const Iterator3& _third) - { - first = _first; - second = _second; - third = _third; - } - - // Pre-increment operator. - type& - operator++() - { - ++first; - ++second; - ++third; - return *this; - } - - // Post-increment operator. - const type - operator++(int) - { return type(first++, second++, third++); } - - // Pre-decrement operator. - type& - operator--() - { - --first; - --second; - --third; - return *this; - } - - // Post-decrement operator. - const type - operator--(int) - { return type(first--, second--, third--); } - - // Type conversion. - operator Iterator3() const - { return third; } - - type& - operator=(const type& other) + template<typename Iterator1, typename Iterator2, typename Iterator3, + typename IteratorCategory> + class iterator_triple { - first = other.first; - second = other.second; - third = other.third; - return *this; - } - - type - operator+(difference_type delta) const - { return type(first + delta, second + delta, third + delta); } - - difference_type - operator-(const type& other) const - { return first - other.first; } + private: + typedef iterator_triple<Iterator1, Iterator2, Iterator3, + IteratorCategory> type; + + public: + typedef IteratorCategory iterator_category; + typedef void value_type; + typedef typename Iterator1::difference_type difference_type; + typedef type* pointer; + typedef type& reference; + + Iterator1 first; + Iterator2 second; + Iterator3 third; + + iterator_triple() { } + + iterator_triple(const Iterator1& _first, const Iterator2& _second, + const Iterator3& _third) + { + first = _first; + second = _second; + third = _third; + } + + // Pre-increment operator. + type& + operator++() + { + ++first; + ++second; + ++third; + return *this; + } + + // Post-increment operator. + const type + operator++(int) + { return type(first++, second++, third++); } + + // Pre-decrement operator. + type& + operator--() + { + --first; + --second; + --third; + return *this; + } + + // Post-decrement operator. + const type + operator--(int) + { return type(first--, second--, third--); } + + // Type conversion. + operator Iterator3() const + { return third; } + + type& + operator=(const type& other) + { + first = other.first; + second = other.second; + third = other.third; + return *this; + } + + type + operator+(difference_type delta) const + { return type(first + delta, second + delta, third + delta); } + + difference_type + operator-(const type& other) const + { return first - other.first; } }; } |