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1 | ////////////////////////////////////////////////////////////////////////////// |
2 | // | |
3 | // (C) Copyright Ion Gaztanaga 2010-2016. | |
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) | |
7 | // | |
8 | // See http://www.boost.org/libs/move for documentation. | |
9 | // | |
10 | ////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef BOOST_MOVE_MOVE_HELPERS_HPP | |
13 | #define BOOST_MOVE_MOVE_HELPERS_HPP | |
14 | ||
15 | #ifndef BOOST_CONFIG_HPP | |
16 | # include <boost/config.hpp> | |
17 | #endif | |
18 | # | |
19 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
20 | # pragma once | |
21 | #endif | |
22 | ||
23 | #include <boost/move/core.hpp> | |
24 | #include <boost/move/utility_core.hpp> | |
25 | #include <boost/move/detail/type_traits.hpp> | |
26 | ||
27 | #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) | |
28 | ||
29 | #define BOOST_MOVE_CATCH_CONST(U) \ | |
30 | typename ::boost::move_detail::if_< ::boost::move_detail::is_class<U>, BOOST_CATCH_CONST_RLVALUE(U), const U &>::type | |
31 | #define BOOST_MOVE_CATCH_RVALUE(U)\ | |
32 | typename ::boost::move_detail::if_< ::boost::move_detail::is_class<U>, BOOST_RV_REF(U), ::boost::move_detail::nat>::type | |
33 | #define BOOST_MOVE_CATCH_FWD(U) BOOST_FWD_REF(U) | |
34 | #else | |
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 && | |
38 | #endif | |
39 | ||
40 | //////////////////////////////////////// | |
41 | // | |
42 | // BOOST_MOVE_CONVERSION_AWARE_CATCH | |
43 | // | |
44 | //////////////////////////////////////// | |
45 | ||
46 | #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES | |
47 | ||
48 | template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class TYPE> | |
49 | struct boost_move_conversion_aware_catch_1 | |
50 | : public ::boost::move_detail::enable_if_and | |
51 | < RETURN_VALUE | |
52 | , ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> | |
53 | , ::boost::move_detail::is_class<TYPE> | |
54 | , ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM> | |
55 | > | |
56 | {}; | |
57 | ||
58 | template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class TYPE> | |
59 | struct boost_move_conversion_aware_catch_2 | |
60 | : public ::boost::move_detail::disable_if_or | |
61 | < RETURN_VALUE | |
62 | , ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> | |
63 | , ::boost::move_detail::is_rv_impl<BOOST_MOVE_TEMPL_PARAM> | |
64 | , ::boost::move_detail::and_ | |
65 | < ::boost::move_detail::is_rv_impl<BOOST_MOVE_TEMPL_PARAM> | |
66 | , ::boost::move_detail::is_class<BOOST_MOVE_TEMPL_PARAM> | |
67 | > | |
68 | > | |
69 | {}; | |
70 | ||
71 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
72 | RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\ | |
73 | { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\ | |
74 | \ | |
75 | RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ | |
76 | { return FWD_FUNCTION(::boost::move(x)); }\ | |
77 | \ | |
78 | RETURN_VALUE PUB_FUNCTION(TYPE &x)\ | |
79 | { return FWD_FUNCTION(const_cast<const TYPE &>(x)); }\ | |
80 | // | |
81 | #if defined(BOOST_MOVE_HELPERS_RETURN_SFINAE_BROKEN) | |
82 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
83 | BOOST_MOVE_CONVERSION_AWARE_CATCH_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
84 | \ | |
85 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
86 | RETURN_VALUE PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u,\ | |
87 | typename boost_move_conversion_aware_catch_1< ::boost::move_detail::nat, BOOST_MOVE_TEMPL_PARAM, TYPE>::type* = 0)\ | |
88 | { return FWD_FUNCTION(u); }\ | |
89 | \ | |
90 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
91 | RETURN_VALUE PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u,\ | |
92 | typename boost_move_conversion_aware_catch_2< ::boost::move_detail::nat, BOOST_MOVE_TEMPL_PARAM, TYPE>::type* = 0)\ | |
93 | {\ | |
94 | TYPE t((u));\ | |
95 | return FWD_FUNCTION(::boost::move(t));\ | |
96 | }\ | |
97 | // | |
98 | #else | |
99 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
100 | BOOST_MOVE_CONVERSION_AWARE_CATCH_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
101 | \ | |
102 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
103 | typename boost_move_conversion_aware_catch_1<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, TYPE>::type\ | |
104 | PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\ | |
105 | { return FWD_FUNCTION(u); }\ | |
106 | \ | |
107 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
108 | typename boost_move_conversion_aware_catch_2<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, TYPE>::type\ | |
109 | PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\ | |
110 | {\ | |
111 | TYPE t((u));\ | |
112 | return FWD_FUNCTION(::boost::move(t));\ | |
113 | }\ | |
114 | // | |
115 | #endif | |
116 | #elif (defined(_MSC_VER) && (_MSC_VER == 1600)) | |
117 | ||
118 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
119 | RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\ | |
120 | { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\ | |
121 | \ | |
122 | RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ | |
123 | { return FWD_FUNCTION(::boost::move(x)); }\ | |
124 | \ | |
125 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
126 | typename ::boost::move_detail::enable_if_c\ | |
127 | < !::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM>::value\ | |
128 | , RETURN_VALUE >::type\ | |
129 | PUB_FUNCTION(const BOOST_MOVE_TEMPL_PARAM &u)\ | |
130 | {\ | |
131 | TYPE t((u));\ | |
132 | return FWD_FUNCTION(::boost::move(t));\ | |
133 | }\ | |
134 | // | |
135 | ||
136 | #else //BOOST_NO_CXX11_RVALUE_REFERENCES | |
137 | ||
138 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION)\ | |
139 | RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_CONST(TYPE) x)\ | |
140 | { return FWD_FUNCTION(static_cast<const TYPE&>(x)); }\ | |
141 | \ | |
142 | RETURN_VALUE PUB_FUNCTION(BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ | |
143 | { return FWD_FUNCTION(::boost::move(x)); }\ | |
144 | // | |
145 | ||
146 | #endif //BOOST_NO_CXX11_RVALUE_REFERENCES | |
147 | ||
148 | //////////////////////////////////////// | |
149 | // | |
150 | // BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG | |
151 | // | |
152 | //////////////////////////////////////// | |
153 | ||
154 | #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES | |
155 | ||
156 | template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class UNLESS_CONVERTIBLE_TO, class TYPE> | |
157 | struct boost_move_conversion_aware_catch_1arg_1 | |
158 | : public ::boost::move_detail::enable_if_and | |
159 | < RETURN_VALUE | |
160 | , ::boost::move_detail::not_< ::boost::move_detail::is_same_or_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO> > | |
161 | , ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> | |
162 | , ::boost::has_move_emulation_disabled<BOOST_MOVE_TEMPL_PARAM> | |
163 | > | |
164 | {}; | |
165 | ||
166 | template<class RETURN_VALUE, class BOOST_MOVE_TEMPL_PARAM, class UNLESS_CONVERTIBLE_TO, class TYPE> | |
167 | struct boost_move_conversion_aware_catch_1arg_2 | |
168 | : public ::boost::move_detail::disable_if_or | |
169 | < RETURN_VALUE | |
170 | , ::boost::move_detail::is_same_or_convertible< BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO> | |
171 | , ::boost::move_detail::is_rv_impl<BOOST_MOVE_TEMPL_PARAM> | |
172 | , ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> | |
173 | > | |
174 | {}; | |
175 | ||
176 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
177 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\ | |
178 | { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\ | |
179 | \ | |
180 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ | |
181 | { return FWD_FUNCTION(arg1, ::boost::move(x)); }\ | |
182 | \ | |
183 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, TYPE &x)\ | |
184 | { return FWD_FUNCTION(arg1, const_cast<const TYPE &>(x)); }\ | |
185 | // | |
186 | #if defined(BOOST_MOVE_HELPERS_RETURN_SFINAE_BROKEN) | |
187 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
188 | BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
189 | \ | |
190 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
191 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u,\ | |
192 | typename boost_move_conversion_aware_catch_1arg_1<void, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type* = 0)\ | |
193 | { return FWD_FUNCTION(arg1, u); }\ | |
194 | \ | |
195 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
196 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u,\ | |
197 | typename boost_move_conversion_aware_catch_1arg_2<void, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type* = 0)\ | |
198 | {\ | |
199 | TYPE t((u));\ | |
200 | return FWD_FUNCTION(arg1, ::boost::move(t));\ | |
201 | }\ | |
202 | // | |
203 | #else | |
204 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
205 | BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG_COMMON(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
206 | \ | |
207 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
208 | typename boost_move_conversion_aware_catch_1arg_1<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type\ | |
209 | PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\ | |
210 | { return FWD_FUNCTION(arg1, u); }\ | |
211 | \ | |
212 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
213 | typename boost_move_conversion_aware_catch_1arg_2<RETURN_VALUE, BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO, TYPE>::type\ | |
214 | PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\ | |
215 | {\ | |
216 | TYPE t((u));\ | |
217 | return FWD_FUNCTION(arg1, ::boost::move(t));\ | |
218 | }\ | |
219 | // | |
220 | #endif | |
221 | ||
222 | #elif (defined(_MSC_VER) && (_MSC_VER == 1600)) | |
223 | ||
224 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
225 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\ | |
226 | { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\ | |
227 | \ | |
228 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ | |
229 | { return FWD_FUNCTION(arg1, ::boost::move(x)); }\ | |
230 | \ | |
231 | template<class BOOST_MOVE_TEMPL_PARAM>\ | |
232 | typename ::boost::move_detail::disable_if_or\ | |
233 | < RETURN_VALUE \ | |
234 | , ::boost::move_detail::is_same<TYPE, BOOST_MOVE_TEMPL_PARAM> \ | |
235 | , ::boost::move_detail::is_same_or_convertible<BOOST_MOVE_TEMPL_PARAM, UNLESS_CONVERTIBLE_TO> \ | |
236 | >::type\ | |
237 | PUB_FUNCTION(ARG1 arg1, const BOOST_MOVE_TEMPL_PARAM &u)\ | |
238 | {\ | |
239 | TYPE t((u));\ | |
240 | return FWD_FUNCTION(arg1, ::boost::move(t));\ | |
241 | }\ | |
242 | // | |
243 | ||
244 | #else | |
245 | ||
246 | #define BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(PUB_FUNCTION, TYPE, RETURN_VALUE, FWD_FUNCTION, ARG1, UNLESS_CONVERTIBLE_TO)\ | |
247 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_CONST(TYPE) x)\ | |
248 | { return FWD_FUNCTION(arg1, static_cast<const TYPE&>(x)); }\ | |
249 | \ | |
250 | RETURN_VALUE PUB_FUNCTION(ARG1 arg1, BOOST_MOVE_CATCH_RVALUE(TYPE) x) \ | |
251 | { return FWD_FUNCTION(arg1, ::boost::move(x)); }\ | |
252 | // | |
253 | ||
254 | #endif | |
255 | ||
256 | #endif //#ifndef BOOST_MOVE_MOVE_HELPERS_HPP |