////////////////////////////////////////////////////////////////////////////// // // (C) Copyright Ion Gaztanaga 2010-2011. // 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. // ////////////////////////////////////////////////////////////////////////////// #ifndef BOOST_MOVE_MOVE_HELPERS_HPP #define BOOST_MOVE_MOVE_HELPERS_HPP #include <boost/move/move.hpp> #include <boost/type_traits/is_class.hpp> #if defined(BOOST_NO_RVALUE_REFERENCES) || (defined(_MSC_VER) && (_MSC_VER == 1600)) #include <boost/type_traits/is_same.hpp> #include <boost/utility/enable_if.hpp> #endif #if defined(BOOST_NO_RVALUE_REFERENCES) #include <boost/mpl/if.hpp> #endif #if defined(BOOST_NO_RVALUE_REFERENCES) struct not_a_type; #define BOOST_MOVE_CATCH_CONST(U) \ typename ::boost::mpl::if_< ::boost::is_class<U>, BOOST_CATCH_CONST_RLVALUE(U), const U &>::type #define BOOST_MOVE_CATCH_RVALUE(U)\ typename ::boost::mpl::if_< ::boost::is_class<U>, BOOST_RV_REF(U), not_a_type>::type #define BOOST_MOVE_CATCH_FWD(U) BOOST_FWD_REF(U) #else #define BOOST_MOVE_CATCH_CONST(U) const U & #define BOOST_MOVE_CATCH_RVALUE(U) U && #define BOOST_MOVE_CATCH_FWD(U) U && #endif #ifdef BOOST_NO_RVALUE_REFERENCES #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\ { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\ \ RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ { return FWD_FUNCTION(::boost::move(x)); }\ \ RETURN_VALUE PUB_FUNCTION(TYPE &x)\ { return FWD_FUNCTION(const_cast<const TYPE &>(x)); }\ \ template<class BOOST_MOVE_TEMPL_PARAM>\ typename ::boost::enable_if_c\ < ::boost::is_class<TYPE>::value &&\ ::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value &&\ !::boost::has_move_emulation_enabled<BOOST_MOVE_TEMPL_PARAM>::value\ , RETURN_VALUE >::type\ PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\ { return FWD_FUNCTION(u); }\ \ template<class BOOST_MOVE_TEMPL_PARAM>\ typename ::boost::enable_if_c\ < (!::boost::is_class<BOOST_MOVE_TEMPL_PARAM>::value || \ !::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM>::value) && \ !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value \ , RETURN_VALUE >::type\ PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\ {\ TYPE t(u);\ return FWD_FUNCTION(::boost::move(t));\ }\ // #elif (defined(_MSC_VER) && (_MSC_VER == 1600)) #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\ { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\ \ RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ { return FWD_FUNCTION(::boost::move(x)); }\ \ template<class BOOST_MOVE_TEMPL_PARAM>\ typename ::boost::enable_if_c\ < !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value\ , RETURN_VALUE >::type\ PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\ {\ TYPE t(u);\ return FWD_FUNCTION(::boost::move(t));\ }\ // #else #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\ { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\ \ RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ { return FWD_FUNCTION(::boost::move(x)); }\ // #endif #ifdef BOOST_NO_RVALUE_REFERENCES #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1)\ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\ { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\ \ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ { return FWD_FUNCTION(arg1, ::boost::move(x)); }\ \ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, TYPE &x)\ { return FWD_FUNCTION(arg1, const_cast<const TYPE &>(x)); }\ \ template<class BOOST_MOVE_TEMPL_PARAM>\ typename ::boost::enable_if_c\ < ::boost::is_class<TYPE>::value &&\ ::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value &&\ !::boost::has_move_emulation_enabled<BOOST_MOVE_TEMPL_PARAM>::value\ , RETURN_VALUE >::type\ PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\ { return FWD_FUNCTION(arg1, u); }\ \ template<class BOOST_MOVE_TEMPL_PARAM>\ typename ::boost::enable_if_c\ < (!::boost::is_class<BOOST_MOVE_TEMPL_PARAM>::value || \ !::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM>::value) && \ !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value \ , RETURN_VALUE >::type\ PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\ {\ TYPE t(u);\ return FWD_FUNCTION(arg1, ::boost::move(t));\ }\ // #elif (defined(_MSC_VER) && (_MSC_VER == 1600)) #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1)\ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\ { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\ \ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ { return FWD_FUNCTION(arg1, ::boost::move(x)); }\ \ template<class BOOST_MOVE_TEMPL_PARAM>\ typename ::boost::enable_if_c\ < !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value\ , RETURN_VALUE >::type\ PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\ {\ TYPE t(u);\ return FWD_FUNCTION(arg1, ::boost::move(t));\ }\ // #else #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1)\ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\ { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\ \ RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ { return FWD_FUNCTION(arg1, ::boost::move(x)); }\ // #endif #endif //#ifndef BOOST_MOVE_MOVE_HELPERS_HPP