Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga 2012-2012.
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/move for documentation.
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: //! \file
Chris@101: //! This header includes core utilities from <tt><boost/move/utility_core.hpp></tt> and defines
Chris@101: //! some more advanced utilities such as:
Chris@16: 
Chris@16: #ifndef BOOST_MOVE_MOVE_UTILITY_HPP
Chris@16: #define BOOST_MOVE_MOVE_UTILITY_HPP
Chris@16: 
Chris@101: #ifndef BOOST_CONFIG_HPP
Chris@101: #  include <boost/config.hpp>
Chris@101: #endif
Chris@101: #
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@101: #  pragma once
Chris@101: #endif
Chris@101: 
Chris@16: #include <boost/move/detail/config_begin.hpp>
Chris@101: #include <boost/move/utility_core.hpp>
Chris@101: #include <boost/move/traits.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
Chris@16: 
Chris@16:    namespace boost {
Chris@16: 
Chris@16:    //////////////////////////////////////////////////////////////////////////////
Chris@16:    //
Chris@101:    //                            move_if_noexcept()
Chris@16:    //
Chris@16:    //////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16:    template <class T>
Chris@16:    inline typename ::boost::move_detail::enable_if_c
Chris@101:       < enable_move_utility_emulation<T>::value && !has_move_emulation_enabled<T>::value
Chris@101:       , typename ::boost::move_detail::add_const<T>::type &
Chris@101:       >::type
Chris@101:          move_if_noexcept(T& x) BOOST_NOEXCEPT
Chris@16:    {
Chris@16:       return x;
Chris@16:    }
Chris@16: 
Chris@16:    template <class T>
Chris@16:    inline typename ::boost::move_detail::enable_if_c
Chris@101:       < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
Chris@101:             && ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, rv<T>&>::type
Chris@101:          move_if_noexcept(T& x) BOOST_NOEXCEPT
Chris@16:    {
Chris@16:       return *static_cast<rv<T>* >(::boost::move_detail::addressof(x));
Chris@16:    }
Chris@16: 
Chris@16:    template <class T>
Chris@16:    inline typename ::boost::move_detail::enable_if_c
Chris@101:       < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
Chris@101:             && ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value
Chris@101:       , rv<T>&
Chris@101:       >::type
Chris@101:          move_if_noexcept(rv<T>& x) BOOST_NOEXCEPT
Chris@16:    {
Chris@16:       return x;
Chris@16:    }
Chris@16: 
Chris@16:    template <class T>
Chris@16:    inline typename ::boost::move_detail::enable_if_c
Chris@101:       < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
Chris@101:             && !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value
Chris@101:       , typename ::boost::move_detail::add_const<T>::type &
Chris@101:       >::type
Chris@101:          move_if_noexcept(T& x) BOOST_NOEXCEPT
Chris@16:    {
Chris@101:       return x;
Chris@16:    }
Chris@16: 
Chris@16:    template <class T>
Chris@16:    inline typename ::boost::move_detail::enable_if_c
Chris@101:       < enable_move_utility_emulation<T>::value && has_move_emulation_enabled<T>::value
Chris@101:             && !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value
Chris@101:       , typename ::boost::move_detail::add_const<T>::type &
Chris@101:       >::type
Chris@101:          move_if_noexcept(rv<T>& x) BOOST_NOEXCEPT
Chris@16:    {
Chris@16:       return x;
Chris@16:    }
Chris@16: 
Chris@16:    }  //namespace boost
Chris@16: 
Chris@16: #else    //#if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
Chris@16: 
Chris@16:    #if defined(BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE)
Chris@16:       #include <utility>
Chris@16: 
Chris@16:       namespace boost{
Chris@16: 
Chris@101:       using ::std::move_if_noexcept;
Chris@16: 
Chris@16:       }  //namespace boost
Chris@16: 
Chris@16:    #else //!BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE
Chris@16: 
Chris@16:       namespace boost {
Chris@16: 
Chris@16:       //////////////////////////////////////////////////////////////////////////////
Chris@16:       //
Chris@101:       //                            move_if_noexcept()
Chris@16:       //
Chris@16:       //////////////////////////////////////////////////////////////////////////////
Chris@16:       #if defined(BOOST_MOVE_DOXYGEN_INVOKED)
Chris@16:          //! This function provides a way to convert a reference into a rvalue reference
Chris@16:          //! in compilers with rvalue references. For other compilers converts T & into
Chris@101:          //! <i>::boost::rv<T> &</i> so that move emulation is activated. Reference
Chris@101:          //! would be converted to rvalue reference only if input type is nothrow move
Chris@101:          //! constructible or if it has no copy constructor. In all other cases const
Chris@101:          //! reference would be returned
Chris@16:          template <class T>
Chris@101:          rvalue_reference_or_const_lvalue_reference move_if_noexcept(input_reference) noexcept;
Chris@16: 
Chris@101:       #else //BOOST_MOVE_DOXYGEN_INVOKED
Chris@16: 
Chris@16:          template <class T>
Chris@101:          typename ::boost::move_detail::enable_if_c
Chris@101:             < ::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, T&&>::type
Chris@101:                move_if_noexcept(T& x) BOOST_NOEXCEPT
Chris@101:          {  return ::boost::move(x);   }
Chris@16: 
Chris@16:          template <class T>
Chris@101:          typename ::boost::move_detail::enable_if_c
Chris@101:             < !::boost::move_detail::is_nothrow_move_constructible_or_uncopyable<T>::value, const T&>::type
Chris@101:                move_if_noexcept(T& x) BOOST_NOEXCEPT
Chris@101:          {  return x;  }
Chris@16: 
Chris@101:       #endif //BOOST_MOVE_DOXYGEN_INVOKED
Chris@16: 
Chris@16:       }  //namespace boost {
Chris@16: 
Chris@16:    #endif   //#if defined(BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE)
Chris@16: 
Chris@16: #endif   //BOOST_NO_CXX11_RVALUE_REFERENCES
Chris@16: 
Chris@16: #include <boost/move/detail/config_end.hpp>
Chris@16: 
Chris@16: #endif //#ifndef BOOST_MOVE_MOVE_UTILITY_HPP