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2 | // (C) Copyright Edward Diener 2019 | |
3 | // Use, modification and distribution are subject to the Boost Software License, | |
4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
5 | // http://www.boost.org/LICENSE_1_0.txt). | |
6 | ||
7 | #if !defined(BOOST_TTI_STATIC_MEM_FUN_TEMPLATE_HPP) | |
8 | #define BOOST_TTI_STATIC_MEM_FUN_TEMPLATE_HPP | |
9 | ||
10 | #include <boost/config.hpp> | |
11 | #include <boost/function_types/property_tags.hpp> | |
12 | #include <boost/mpl/vector.hpp> | |
13 | #include <boost/preprocessor/cat.hpp> | |
14 | #include <boost/tti/gen/namespace_gen.hpp> | |
15 | #include <boost/tti/gen/has_static_member_function_template_gen.hpp> | |
16 | #include <boost/tti/detail/dstatic_mem_fun_template.hpp> | |
17 | ||
18 | #if BOOST_PP_VARIADICS | |
19 | ||
20 | #include <boost/tti/detail/dmacro_fun_template.hpp> | |
21 | ||
22 | /* | |
23 | ||
24 | The succeeding comments in this file are in doxygen format. | |
25 | ||
26 | */ | |
27 | ||
28 | /** \file | |
29 | */ | |
30 | ||
31 | /// A macro which expands to a metafunction which tests whether an inner static member function template with a particular name exists. | |
32 | /** | |
33 | ||
34 | BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE is a macro which expands to a metafunction. | |
35 | The metafunction tests whether an inner static member function template with a particular name exists. | |
36 | The macro takes the form of BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(trait,name,...) where | |
37 | ||
38 | trait = the name of the metafunction <br/> | |
39 | name = inner static member function template name <br/> | |
40 | ... = variadic parameters. | |
41 | ||
42 | The variadic parameter(s) are either: | |
43 | ||
44 | A sequence of valid instantiations for the static member function template parameters | |
45 | ie. 'int,long,double' etc. | |
46 | ||
47 | or | |
48 | ||
49 | A single variadic parameter which is a Boost PP array whose elements are | |
50 | a sequence of valid instantiations for the static member function template parameters | |
51 | ie. '(3,(int,long,double))' etc. This form is allowed in order to be compatible | |
52 | with using the non-variadic form of this macro. | |
53 | ||
54 | BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE generates a metafunction called "trait" where 'trait' is the first macro parameter. | |
55 | ||
56 | @code | |
57 | ||
58 | template<class BOOST_TTI_TP_T,class BOOST_TTI_R,class BOOST_TTI_FS,class BOOST_TTI_TAG> | |
59 | struct trait | |
60 | { | |
61 | static const value = unspecified; | |
62 | typedef mpl::bool_<true-or-false> type; | |
63 | }; | |
64 | ||
65 | The metafunction types and return: | |
66 | ||
67 | BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'. | |
68 | The enclosing type can be a class, struct, or union. | |
69 | ||
70 | BOOST_TTI_TP_R = the return type of the static member function template | |
71 | in a single instantiation of the static member function template | |
72 | OR | |
73 | a pointer to function as a single type | |
74 | which encapsulates a single instantiation of | |
75 | the static member function template. | |
76 | ||
77 | BOOST_TTI_TP_FS = (optional) the parameters of the static member function template as a boost::mpl forward sequence | |
78 | if the second parameter is the enclosing type and the static member function template parameters | |
79 | are not empty. These parameters are a single instantiation of the static member function template. | |
80 | ||
81 | BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the static member function template | |
82 | if the second parameter is the enclosing type and a tag is needed. | |
83 | ||
84 | returns = 'value' is true if the 'name' exists, | |
85 | with the appropriate static member function template type, | |
86 | otherwise 'value' is false. | |
87 | ||
88 | @endcode | |
89 | ||
90 | */ | |
91 | #define BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(trait,name,...) \ | |
92 | BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE \ | |
93 | ( \ | |
94 | trait, \ | |
95 | name, \ | |
96 | BOOST_TTI_DETAIL_FUN_TEMPLATE_VARIADIC_TO_ARRAY(__VA_ARGS__) \ | |
97 | ) \ | |
98 | template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_R,class BOOST_TTI_TP_FS = boost::mpl::vector<>,class BOOST_TTI_TP_TAG = boost::function_types::null_tag> \ | |
99 | struct trait \ | |
100 | { \ | |
101 | typedef typename \ | |
102 | BOOST_PP_CAT(trait,_detail_hsmft)<BOOST_TTI_TP_T,BOOST_TTI_TP_R,BOOST_TTI_TP_FS,BOOST_TTI_TP_TAG>::type type; \ | |
103 | BOOST_STATIC_CONSTANT(bool,value=type::value); \ | |
104 | }; \ | |
105 | /**/ | |
106 | ||
107 | ||
108 | /// A macro which expands to a metafunction which tests whether an inner static member function template with a particular name exists. | |
109 | /** | |
110 | ||
111 | BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE is a macro which expands to a metafunction. | |
112 | The metafunction tests whether an inner static member function template with a particular name exists. | |
113 | The macro takes the form of BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(name,...) where | |
114 | ||
115 | name = inner static member function template name <br/> | |
116 | ... = variadic parameters. | |
117 | ||
118 | The variadic parameter(s) are either: | |
119 | ||
120 | A sequence of valid instantiations for the static member function template parameters | |
121 | ie. 'int,long,double' etc. | |
122 | ||
123 | or | |
124 | ||
125 | A single variadic parameter which is a Boost PP array whose elements are | |
126 | a sequence of valid instantiations for the static member function template parameters | |
127 | ie. '(3,(int,long,double))' etc. This form is allowed in order to be compatible | |
128 | with using the non-variadic form of this macro. | |
129 | ||
130 | BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE generates a metafunction called "has_static_member_function_template_'name'" where 'name' is the first macro parameter. | |
131 | ||
132 | @code | |
133 | ||
134 | template<class BOOST_TTI_TP_T,class BOOST_TTI_R,class BOOST_TTI_FS,class BOOST_TTI_TAG> | |
135 | struct has_static_member_function_template_'name' | |
136 | { | |
137 | static const value = unspecified; | |
138 | typedef mpl::bool_<true-or-false> type; | |
139 | }; | |
140 | ||
141 | The metafunction types and return: | |
142 | ||
143 | BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'. | |
144 | The enclosing type can be a class, struct, or union. | |
145 | ||
146 | BOOST_TTI_TP_R = the return type of the static member function template | |
147 | in a single instantiation of the static member function template | |
148 | OR | |
149 | a pointer to function as a single type | |
150 | which encapsulates a single instantiation of | |
151 | the static member function template. | |
152 | ||
153 | BOOST_TTI_TP_FS = (optional) the parameters of the static member function template as a boost::mpl forward sequence | |
154 | if the second parameter is the enclosing type and the static member function template parameters | |
155 | are not empty. These parameters are a single instantiation of the static member function template. | |
156 | ||
157 | BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the static member function template | |
158 | if the second parameter is the enclosing type and a tag is needed. | |
159 | ||
160 | returns = 'value' is true if the 'name' exists, | |
161 | with the appropriate static member function template type, | |
162 | otherwise 'value' is false. | |
163 | ||
164 | @endcode | |
165 | ||
166 | */ | |
167 | #define BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(name,...) \ | |
168 | BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE \ | |
169 | ( \ | |
170 | BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE_GEN(name), \ | |
171 | name, \ | |
172 | __VA_ARGS__ \ | |
173 | ) \ | |
174 | /**/ | |
175 | ||
176 | #else // !BOOST_PP_VARIADICS | |
177 | ||
178 | /* | |
179 | ||
180 | The succeeding comments in this file are in doxygen format. | |
181 | ||
182 | */ | |
183 | ||
184 | /** \file | |
185 | */ | |
186 | ||
187 | /// A macro which expands to a metafunction which tests whether an inner static member function template with a particular name exists. | |
188 | /** | |
189 | ||
190 | BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE is a macro which expands to a metafunction. | |
191 | The metafunction tests whether an inner static member function template with a particular name exists. | |
192 | The macro takes the form of BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(trait,name,pparray) where | |
193 | ||
194 | trait = the name of the metafunction <br/> | |
195 | name = inner static member function template name <br/> | |
196 | pparray = a Boost PP array whose elements are a sequence of valid instantiations for | |
197 | the static member function template parameters ie. '(3,(int,long,double))' etc. | |
198 | ||
199 | BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE generates a metafunction called "trait" where 'trait' is the first macro parameter. | |
200 | ||
201 | @code | |
202 | ||
203 | template<class BOOST_TTI_TP_T,class BOOST_TTI_R,class BOOST_TTI_FS,class BOOST_TTI_TAG> | |
204 | struct trait | |
205 | { | |
206 | static const value = unspecified; | |
207 | typedef mpl::bool_<true-or-false> type; | |
208 | }; | |
209 | ||
210 | The metafunction types and return: | |
211 | ||
212 | BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'. | |
213 | The enclosing type can be a class, struct, or union. | |
214 | ||
215 | BOOST_TTI_TP_R = the return type of the static member function template | |
216 | in a single instantiation of the static member function template | |
217 | OR | |
218 | a pointer to function as a single type | |
219 | which encapsulates a single instantiation of | |
220 | the static member function template. | |
221 | ||
222 | BOOST_TTI_TP_FS = (optional) the parameters of the static member function template as a boost::mpl forward sequence | |
223 | if the second parameter is the enclosing type and the static member function template parameters | |
224 | are not empty. These parameters are a single instantiation of the static member function template. | |
225 | ||
226 | BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the static member function template | |
227 | if the second parameter is the enclosing type and a tag is needed. | |
228 | ||
229 | returns = 'value' is true if the 'name' exists, | |
230 | with the appropriate static member function template type, | |
231 | otherwise 'value' is false. | |
232 | ||
233 | @endcode | |
234 | ||
235 | */ | |
236 | #define BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(trait,name,pparray) \ | |
237 | BOOST_TTI_DETAIL_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(trait,name,pparray) \ | |
238 | template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_R,class BOOST_TTI_TP_FS = boost::mpl::vector<>,class BOOST_TTI_TP_TAG = boost::function_types::null_tag> \ | |
239 | struct trait \ | |
240 | { \ | |
241 | typedef typename \ | |
242 | BOOST_PP_CAT(trait,_detail_hsmft)<BOOST_TTI_TP_T,BOOST_TTI_TP_R,BOOST_TTI_TP_FS,BOOST_TTI_TP_TAG>::type type; \ | |
243 | BOOST_STATIC_CONSTANT(bool,value=type::value); \ | |
244 | }; \ | |
245 | /**/ | |
246 | ||
247 | /// A macro which expands to a metafunction which tests whether an inner static member function template with a particular name exists. | |
248 | /** | |
249 | ||
250 | BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE is a macro which expands to a metafunction. | |
251 | The metafunction tests whether an inner static member function template with a particular name exists. | |
252 | The macro takes the form of BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(name,pparray) where | |
253 | ||
254 | name = inner static member function template name <br/> | |
255 | pparray = a Boost PP array whose elements are a sequence of valid instantiations for | |
256 | the static member function template parameters ie. '(3,(int,long,double))' etc. | |
257 | ||
258 | BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE generates a metafunction called "has_static_member_function_template_'name'" where 'name' is the first macro parameter. | |
259 | ||
260 | @code | |
261 | ||
262 | template<class BOOST_TTI_TP_T,class BOOST_TTI_R,class BOOST_TTI_FS,class BOOST_TTI_TAG> | |
263 | struct has_static_member_function_template_'name' | |
264 | { | |
265 | static const value = unspecified; | |
266 | typedef mpl::bool_<true-or-false> type; | |
267 | }; | |
268 | ||
269 | The metafunction types and return: | |
270 | ||
271 | BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'. | |
272 | The enclosing type can be a class, struct, or union. | |
273 | ||
274 | BOOST_TTI_TP_R = the return type of the static member function template | |
275 | in a single instantiation of the static member function template | |
276 | OR | |
277 | a pointer to function as a single type | |
278 | which encapsulates a single instantiation of | |
279 | the static member function template. | |
280 | ||
281 | BOOST_TTI_TP_FS = (optional) the parameters of the static member function template as a boost::mpl forward sequence | |
282 | if the second parameter is the enclosing type and the static member function template parameters | |
283 | are not empty. These parameters are a single instantiation of the static member function template. | |
284 | ||
285 | BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the static member function template | |
286 | if the second parameter is the enclosing type and a tag is needed. | |
287 | ||
288 | returns = 'value' is true if the 'name' exists, | |
289 | with the appropriate static member function template type, | |
290 | otherwise 'value' is false. | |
291 | ||
292 | @endcode | |
293 | ||
294 | */ | |
295 | #define BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE(name,pparray) \ | |
296 | BOOST_TTI_TRAIT_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE \ | |
297 | ( \ | |
298 | BOOST_TTI_HAS_STATIC_MEMBER_FUNCTION_TEMPLATE_GEN(name), \ | |
299 | name, \ | |
300 | pparray \ | |
301 | ) \ | |
302 | /**/ | |
303 | ||
304 | #endif // BOOST_PP_VARIADICS | |
305 | ||
306 | #endif // BOOST_TTI_STATIC_MEM_FUN_TEMPLATE_HPP |