1 //////////////////////////////////////////////////////////////////////////////
3 // (C) Copyright Ion Gaztanaga 2010-2011.
4 // Distributed under the Boost Software License, Version 1.0.
5 // (See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt)
8 // See http://www.boost.org/libs/move for documentation.
10 //////////////////////////////////////////////////////////////////////////////
12 #ifndef BOOST_MOVE_MOVE_HELPERS_HPP
13 #define BOOST_MOVE_MOVE_HELPERS_HPP
15 #include <boost/move/move.hpp>
16 #include <boost/type_traits/is_class.hpp>
18 #if defined(BOOST_NO_RVALUE_REFERENCES) || (defined(_MSC_VER) && (_MSC_VER == 1600))
19 #include <boost/type_traits/is_same.hpp>
20 #include <boost/utility/enable_if.hpp>
22 #if defined(BOOST_NO_RVALUE_REFERENCES)
23 #include <boost/mpl/if.hpp>
27 #if defined(BOOST_NO_RVALUE_REFERENCES)
29 #define BOOST_MOVE_CATCH_CONST(U) \
30 typename ::boost::mpl::if_< ::boost::is_class<U>, BOOST_CATCH_CONST_RLVALUE(U), const U &>::type
31 #define BOOST_MOVE_CATCH_RVALUE(U)\
32 typename ::boost::mpl::if_< ::boost::is_class<U>, BOOST_RV_REF(U), not_a_type>::type
33 #define BOOST_MOVE_CATCH_FWD(U) BOOST_FWD_REF(U)
35 #define BOOST_MOVE_CATCH_CONST(U) const U &
36 #define BOOST_MOVE_CATCH_RVALUE(U) U &&
37 #define BOOST_MOVE_CATCH_FWD(U) U &&
40 #ifdef BOOST_NO_RVALUE_REFERENCES
42 #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\
43 RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\
44 { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\
46 RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \
47 { return FWD_FUNCTION(::boost::move(x)); }\
49 RETURN_VALUE PUB_FUNCTION(TYPE &x)\
50 { return FWD_FUNCTION(const_cast<const TYPE &>(x)); }\
52 template<class BOOST_MOVE_TEMPL_PARAM>\
53 typename ::boost::enable_if_c\
54 < ::boost::is_class<TYPE>::value &&\
55 ::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value &&\
56 !::boost::has_move_emulation_enabled<BOOST_MOVE_TEMPL_PARAM>::value\
57 , RETURN_VALUE >::type\
58 PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\
59 { return FWD_FUNCTION(u); }\
61 template<class BOOST_MOVE_TEMPL_PARAM>\
62 typename ::boost::enable_if_c\
63 < (!::boost::is_class<BOOST_MOVE_TEMPL_PARAM>::value || \
64 !::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM>::value) && \
65 !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value \
66 , RETURN_VALUE >::type\
67 PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\
70 return FWD_FUNCTION(::boost::move(t));\
74 #elif (defined(_MSC_VER) && (_MSC_VER == 1600))
76 #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\
77 RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\
78 { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\
80 RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \
81 { return FWD_FUNCTION(::boost::move(x)); }\
83 template<class BOOST_MOVE_TEMPL_PARAM>\
84 typename ::boost::enable_if_c\
85 < !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value\
86 , RETURN_VALUE >::type\
87 PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\
90 return FWD_FUNCTION(::boost::move(t));\
96 #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\
97 RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\
98 { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\
100 RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \
101 { return FWD_FUNCTION(::boost::move(x)); }\
107 #ifdef BOOST_NO_RVALUE_REFERENCES
109 #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1)\
110 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\
111 { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\
113 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \
114 { return FWD_FUNCTION(arg1, ::boost::move(x)); }\
116 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, TYPE &x)\
117 { return FWD_FUNCTION(arg1, const_cast<const TYPE &>(x)); }\
119 template<class BOOST_MOVE_TEMPL_PARAM>\
120 typename ::boost::enable_if_c\
121 < ::boost::is_class<TYPE>::value &&\
122 ::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value &&\
123 !::boost::has_move_emulation_enabled<BOOST_MOVE_TEMPL_PARAM>::value\
124 , RETURN_VALUE >::type\
125 PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\
126 { return FWD_FUNCTION(arg1, u); }\
128 template<class BOOST_MOVE_TEMPL_PARAM>\
129 typename ::boost::enable_if_c\
130 < (!::boost::is_class<BOOST_MOVE_TEMPL_PARAM>::value || \
131 !::boost::move_detail::is_rv<BOOST_MOVE_TEMPL_PARAM>::value) && \
132 !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value \
133 , RETURN_VALUE >::type\
134 PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\
137 return FWD_FUNCTION(arg1, ::boost::move(t));\
141 #elif (defined(_MSC_VER) && (_MSC_VER == 1600))
143 #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1)\
144 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\
145 { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\
147 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \
148 { return FWD_FUNCTION(arg1, ::boost::move(x)); }\
150 template<class BOOST_MOVE_TEMPL_PARAM>\
151 typename ::boost::enable_if_c\
152 < !::boost::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value\
153 , RETURN_VALUE >::type\
154 PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\
157 return FWD_FUNCTION(arg1, ::boost::move(t));\
163 #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1)\
164 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\
165 { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\
167 RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \
168 { return FWD_FUNCTION(arg1, ::boost::move(x)); }\
173 #endif //#ifndef BOOST_MOVE_MOVE_HELPERS_HPP