1 // Distributed under the Boost Software License, Version 1.0. (See

     2 // accompanying file LICENSE_1_0.txt or copy at

     3 // http://www.boost.org/LICENSE_1_0.txt)

     4 // (C) Copyright 2007-8 Anthony Williams

     5 

     6 #ifndef BOOST_THREAD_MOVE_HPP

     7 #define BOOST_THREAD_MOVE_HPP

     8 

     9 #ifndef BOOST_NO_SFINAE

    10 #include <boost/utility/enable_if.hpp>

    11 #include <boost/type_traits/is_convertible.hpp>

    12 #endif

    13 

    14 #include <boost/config/abi_prefix.hpp>

    15 

    16 namespace boost

    17 {

    18     namespace detail

    19     {

    20         template<typename T>

    21         struct thread_move_t

    22         {

    23             T& t;

    24             explicit thread_move_t(T& t_):

    25                 t(t_)

    26             {}

    27 

    28             T& operator*() const

    29             {

    30                 return t;

    31             }

    32 

    33             T* operator->() const

    34             {

    35                 return &t;

    36             }

    37         private:

    38             void operator=(thread_move_t&);

    39         };

    40     }

    41 

    42 #ifndef BOOST_NO_SFINAE

    43     template<typename T>

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

    45     {

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

    47     }

    48 #endif

    49     

    50     template<typename T>

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

    52     {

    53         return t;

    54     }

    55     

    56 }

    57 

    58 #include <boost/config/abi_suffix.hpp>

    59 

    60 #endif