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Diffstat (limited to '3rdParty/Boost/src/boost/move/iterator.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/move/iterator.hpp | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/move/iterator.hpp b/3rdParty/Boost/src/boost/move/iterator.hpp new file mode 100644 index 0000000..b4bc1af --- /dev/null +++ b/3rdParty/Boost/src/boost/move/iterator.hpp @@ -0,0 +1,298 @@ +////////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2012-2012. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// See http://www.boost.org/libs/move for documentation. +// +////////////////////////////////////////////////////////////////////////////// + +//! \file + +#ifndef BOOST_MOVE_ITERATOR_HPP +#define BOOST_MOVE_ITERATOR_HPP + +#include <boost/move/detail/config_begin.hpp> +#include <boost/move/utility.hpp> +#include <iterator> //std::iterator + +namespace boost { + +////////////////////////////////////////////////////////////////////////////// +// +// move_iterator +// +////////////////////////////////////////////////////////////////////////////// + +//! Class template move_iterator is an iterator adaptor with the same behavior +//! as the underlying iterator except that its dereference operator implicitly +//! converts the value returned by the underlying iterator's dereference operator +//! to an rvalue reference. Some generic algorithms can be called with move +//! iterators to replace copying with moving. +template <class It> +class move_iterator +{ + public: + typedef It iterator_type; + typedef typename std::iterator_traits<iterator_type>::value_type value_type; + #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) || defined(BOOST_MOVE_DOXYGEN_INVOKED) + typedef value_type && reference; + #else + typedef typename ::boost::move_detail::if_ + < ::boost::has_move_emulation_enabled<value_type> + , ::boost::rv<value_type>& + , value_type & >::type reference; + #endif + typedef It pointer; + typedef typename std::iterator_traits<iterator_type>::difference_type difference_type; + typedef typename std::iterator_traits<iterator_type>::iterator_category iterator_category; + + move_iterator() + {} + + explicit move_iterator(It i) + : m_it(i) + {} + + template <class U> + move_iterator(const move_iterator<U>& u) + : m_it(u.base()) + {} + + iterator_type base() const + { return m_it; } + + reference operator*() const + { + #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) || defined(BOOST_MOVE_OLD_RVALUE_REF_BINDING_RULES) + return *m_it; + #else + return ::boost::move(*m_it); + #endif + } + + pointer operator->() const + { return m_it; } + + move_iterator& operator++() + { ++m_it; return *this; } + + move_iterator<iterator_type> operator++(int) + { move_iterator<iterator_type> tmp(*this); ++(*this); return tmp; } + + move_iterator& operator--() + { --m_it; return *this; } + + move_iterator<iterator_type> operator--(int) + { move_iterator<iterator_type> tmp(*this); --(*this); return tmp; } + + move_iterator<iterator_type> operator+ (difference_type n) const + { return move_iterator<iterator_type>(m_it + n); } + + move_iterator& operator+=(difference_type n) + { m_it += n; return *this; } + + move_iterator<iterator_type> operator- (difference_type n) const + { return move_iterator<iterator_type>(m_it - n); } + + move_iterator& operator-=(difference_type n) + { m_it -= n; return *this; } + + reference operator[](difference_type n) const + { + #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) || defined(BOOST_MOVE_OLD_RVALUE_REF_BINDING_RULES) + return m_it[n]; + #else + return ::boost::move(m_it[n]); + #endif + } + + friend bool operator==(const move_iterator& x, const move_iterator& y) + { return x.base() == y.base(); } + + friend bool operator!=(const move_iterator& x, const move_iterator& y) + { return x.base() != y.base(); } + + friend bool operator< (const move_iterator& x, const move_iterator& y) + { return x.base() < y.base(); } + + friend bool operator<=(const move_iterator& x, const move_iterator& y) + { return x.base() <= y.base(); } + + friend bool operator> (const move_iterator& x, const move_iterator& y) + { return x.base() > y.base(); } + + friend bool operator>=(const move_iterator& x, const move_iterator& y) + { return x.base() >= y.base(); } + + friend difference_type operator-(const move_iterator& x, const move_iterator& y) + { return x.base() - y.base(); } + + friend move_iterator operator+(difference_type n, const move_iterator& x) + { return move_iterator(x.base() + n); } + + private: + It m_it; +}; + +//is_move_iterator +namespace move_detail { + +template <class I> +struct is_move_iterator + : public ::boost::move_detail::integral_constant<bool, false> +{ +}; + +template <class I> +struct is_move_iterator< ::boost::move_iterator<I> > + : public ::boost::move_detail::integral_constant<bool, true> +{ +}; + +} //namespace move_detail { + +////////////////////////////////////////////////////////////////////////////// +// +// move_iterator +// +////////////////////////////////////////////////////////////////////////////// + +//! +//! <b>Returns</b>: move_iterator<It>(i). +template<class It> +inline move_iterator<It> make_move_iterator(const It &it) +{ return move_iterator<It>(it); } + +////////////////////////////////////////////////////////////////////////////// +// +// back_move_insert_iterator +// +////////////////////////////////////////////////////////////////////////////// + + +//! A move insert iterator that move constructs elements at the +//! back of a container +template <typename C> // C models Container +class back_move_insert_iterator + : public std::iterator<std::output_iterator_tag, void, void, void, void> +{ + C* container_m; + + public: + typedef C container_type; + typedef typename C::value_type value_type; + typedef typename C::reference reference; + + explicit back_move_insert_iterator(C& x) : container_m(&x) { } + + back_move_insert_iterator& operator=(reference x) + { container_m->push_back(boost::move(x)); return *this; } + + back_move_insert_iterator& operator=(BOOST_RV_REF(value_type) x) + { reference rx = x; return this->operator=(rx); } + + back_move_insert_iterator& operator*() { return *this; } + back_move_insert_iterator& operator++() { return *this; } + back_move_insert_iterator& operator++(int) { return *this; } +}; + +//! +//! <b>Returns</b>: back_move_insert_iterator<C>(x). +template <typename C> // C models Container +inline back_move_insert_iterator<C> back_move_inserter(C& x) +{ + return back_move_insert_iterator<C>(x); +} + +////////////////////////////////////////////////////////////////////////////// +// +// front_move_insert_iterator +// +////////////////////////////////////////////////////////////////////////////// + +//! A move insert iterator that move constructs elements int the +//! front of a container +template <typename C> // C models Container +class front_move_insert_iterator + : public std::iterator<std::output_iterator_tag, void, void, void, void> +{ + C* container_m; + +public: + typedef C container_type; + typedef typename C::value_type value_type; + typedef typename C::reference reference; + + explicit front_move_insert_iterator(C& x) : container_m(&x) { } + + front_move_insert_iterator& operator=(reference x) + { container_m->push_front(boost::move(x)); return *this; } + + front_move_insert_iterator& operator=(BOOST_RV_REF(value_type) x) + { reference rx = x; return this->operator=(rx); } + + front_move_insert_iterator& operator*() { return *this; } + front_move_insert_iterator& operator++() { return *this; } + front_move_insert_iterator& operator++(int) { return *this; } +}; + +//! +//! <b>Returns</b>: front_move_insert_iterator<C>(x). +template <typename C> // C models Container +inline front_move_insert_iterator<C> front_move_inserter(C& x) +{ + return front_move_insert_iterator<C>(x); +} + +////////////////////////////////////////////////////////////////////////////// +// +// insert_move_iterator +// +////////////////////////////////////////////////////////////////////////////// +template <typename C> // C models Container +class move_insert_iterator + : public std::iterator<std::output_iterator_tag, void, void, void, void> +{ + C* container_m; + typename C::iterator pos_; + + public: + typedef C container_type; + typedef typename C::value_type value_type; + typedef typename C::reference reference; + + explicit move_insert_iterator(C& x, typename C::iterator pos) + : container_m(&x), pos_(pos) + {} + + move_insert_iterator& operator=(reference x) + { + pos_ = container_m->insert(pos_, ::boost::move(x)); + ++pos_; + return *this; + } + + move_insert_iterator& operator=(BOOST_RV_REF(value_type) x) + { reference rx = x; return this->operator=(rx); } + + move_insert_iterator& operator*() { return *this; } + move_insert_iterator& operator++() { return *this; } + move_insert_iterator& operator++(int) { return *this; } +}; + +//! +//! <b>Returns</b>: move_insert_iterator<C>(x, it). +template <typename C> // C models Container +inline move_insert_iterator<C> move_inserter(C& x, typename C::iterator it) +{ + return move_insert_iterator<C>(x, it); +} + +} //namespace boost { + +#include <boost/move/detail/config_end.hpp> + +#endif //#ifndef BOOST_MOVE_ITERATOR_HPP |