// 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)

// (C) Copyright 2007-8 Anthony Williams

#ifndef BOOST_THREAD_MOVE_HPP

#define BOOST_THREAD_MOVE_HPP

#ifndef BOOST_NO_SFINAE

#include <boost/utility/enable_if.hpp>

#include <boost/type_traits/is_convertible.hpp>

#endif

#include <boost/config/abi_prefix.hpp>

namespace boost

{

    namespace detail

    {

        template<typename T>

        struct thread_move_t

        {

            T& t;

            explicit thread_move_t(T& t_):

                t(t_)

            {}

            T& operator*() const

            {

                return t;

            }

            T* operator->() const

            {

                return &t;

            }

        private:

            void operator=(thread_move_t&);

        };

    }

#ifndef BOOST_NO_SFINAE

    template<typename T>

    typename enable_if<boost::is_convertible<T&,detail::thread_move_t<T> >, T >::type move(T& t)

    {

        return T(detail::thread_move_t<T>(t));

    }

#endif

    template<typename T>

    detail::thread_move_t<T> move(detail::thread_move_t<T> t)

    {

        return t;

    }

}

#include <boost/config/abi_suffix.hpp>

#endif