type_traits revision 278724 
1// -*- C++ -*-
2//===-------------------------- type_traits -------------------------------===//
3//
4//                     The LLVM Compiler Infrastructure
5//
6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10
11#ifndef _LIBCPP_EXPERIMENTAL_TYPE_TRAITS
12#define _LIBCPP_EXPERIMENTAL_TYPE_TRAITS
13
14/**
15    experimental/type_traits synopsis
16
17// C++1y
18#include <type_traits>
19
20namespace std {
21namespace experimental {
22inline namespace fundamentals_v1 {
23
24  // See C++14 20.10.4.1, primary type categories
25  template <class T> constexpr bool is_void_v
26    = is_void<T>::value;
27  template <class T> constexpr bool is_null_pointer_v
28    = is_null_pointer<T>::value;
29  template <class T> constexpr bool is_integral_v
30    = is_integral<T>::value;
31  template <class T> constexpr bool is_floating_point_v
32    = is_floating_point<T>::value;
33  template <class T> constexpr bool is_array_v
34    = is_array<T>::value;
35  template <class T> constexpr bool is_pointer_v
36    = is_pointer<T>::value;
37  template <class T> constexpr bool is_lvalue_reference_v
38    = is_lvalue_reference<T>::value;
39  template <class T> constexpr bool is_rvalue_reference_v
40    = is_rvalue_reference<T>::value;
41  template <class T> constexpr bool is_member_object_pointer_v
42    = is_member_object_pointer<T>::value;
43  template <class T> constexpr bool is_member_function_pointer_v
44    = is_member_function_pointer<T>::value;
45  template <class T> constexpr bool is_enum_v
46    = is_enum<T>::value;
47  template <class T> constexpr bool is_union_v
48    = is_union<T>::value;
49  template <class T> constexpr bool is_class_v
50    = is_class<T>::value;
51  template <class T> constexpr bool is_function_v
52    = is_function<T>::value;
53
54  // See C++14 20.10.4.2, composite type categories
55  template <class T> constexpr bool is_reference_v
56    = is_reference<T>::value;
57  template <class T> constexpr bool is_arithmetic_v
58    = is_arithmetic<T>::value;
59  template <class T> constexpr bool is_fundamental_v
60    = is_fundamental<T>::value;
61  template <class T> constexpr bool is_object_v
62    = is_object<T>::value;
63  template <class T> constexpr bool is_scalar_v
64    = is_scalar<T>::value;
65  template <class T> constexpr bool is_compound_v
66    = is_compound<T>::value;
67  template <class T> constexpr bool is_member_pointer_v
68    = is_member_pointer<T>::value;
69
70  // See C++14 20.10.4.3, type properties
71  template <class T> constexpr bool is_const_v
72    = is_const<T>::value;
73  template <class T> constexpr bool is_volatile_v
74    = is_volatile<T>::value;
75  template <class T> constexpr bool is_trivial_v
76    = is_trivial<T>::value;
77  template <class T> constexpr bool is_trivially_copyable_v
78    = is_trivially_copyable<T>::value;
79  template <class T> constexpr bool is_standard_layout_v
80    = is_standard_layout<T>::value;
81  template <class T> constexpr bool is_pod_v
82    = is_pod<T>::value;
83  template <class T> constexpr bool is_literal_type_v
84    = is_literal_type<T>::value;
85  template <class T> constexpr bool is_empty_v
86    = is_empty<T>::value;
87  template <class T> constexpr bool is_polymorphic_v
88    = is_polymorphic<T>::value;
89  template <class T> constexpr bool is_abstract_v
90    = is_abstract<T>::value;
91  template <class T> constexpr bool is_final_v
92    = is_final<T>::value;
93  template <class T> constexpr bool is_signed_v
94    = is_signed<T>::value;
95  template <class T> constexpr bool is_unsigned_v
96    = is_unsigned<T>::value;
97  template <class T, class... Args> constexpr bool is_constructible_v
98    = is_constructible<T, Args...>::value;
99  template <class T> constexpr bool is_default_constructible_v
100    = is_default_constructible<T>::value;
101  template <class T> constexpr bool is_copy_constructible_v
102    = is_copy_constructible<T>::value;
103  template <class T> constexpr bool is_move_constructible_v
104    = is_move_constructible<T>::value;
105  template <class T, class U> constexpr bool is_assignable_v
106    = is_assignable<T, U>::value;
107  template <class T> constexpr bool is_copy_assignable_v
108    = is_copy_assignable<T>::value;
109  template <class T> constexpr bool is_move_assignable_v
110    = is_move_assignable<T>::value;
111  template <class T> constexpr bool is_destructible_v
112    = is_destructible<T>::value;
113  template <class T, class... Args> constexpr bool is_trivially_constructible_v
114    = is_trivially_constructible<T, Args...>::value;
115  template <class T> constexpr bool is_trivially_default_constructible_v
116    = is_trivially_default_constructible<T>::value;
117  template <class T> constexpr bool is_trivially_copy_constructible_v
118    = is_trivially_copy_constructible<T>::value;
119  template <class T> constexpr bool is_trivially_move_constructible_v
120    = is_trivially_move_constructible<T>::value;
121  template <class T, class U> constexpr bool is_trivially_assignable_v
122    = is_trivially_assignable<T, U>::value;
123  template <class T> constexpr bool is_trivially_copy_assignable_v
124    = is_trivially_copy_assignable<T>::value;
125  template <class T> constexpr bool is_trivially_move_assignable_v
126    = is_trivially_move_assignable<T>::value;
127  template <class T> constexpr bool is_trivially_destructible_v
128    = is_trivially_destructible<T>::value;
129  template <class T, class... Args> constexpr bool is_nothrow_constructible_v
130    = is_nothrow_constructible<T, Args...>::value;
131  template <class T> constexpr bool is_nothrow_default_constructible_v
132    = is_nothrow_default_constructible<T>::value;
133  template <class T> constexpr bool is_nothrow_copy_constructible_v
134    = is_nothrow_copy_constructible<T>::value;
135  template <class T> constexpr bool is_nothrow_move_constructible_v
136    = is_nothrow_move_constructible<T>::value;
137  template <class T, class U> constexpr bool is_nothrow_assignable_v
138    = is_nothrow_assignable<T, U>::value;
139  template <class T> constexpr bool is_nothrow_copy_assignable_v
140    = is_nothrow_copy_assignable<T>::value;
141  template <class T> constexpr bool is_nothrow_move_assignable_v
142    = is_nothrow_move_assignable<T>::value;
143  template <class T> constexpr bool is_nothrow_destructible_v
144    = is_nothrow_destructible<T>::value;
145  template <class T> constexpr bool has_virtual_destructor_v
146    = has_virtual_destructor<T>::value;
147
148  // See C++14 20.10.5, type property queries
149  template <class T> constexpr size_t alignment_of_v
150    = alignment_of<T>::value;
151  template <class T> constexpr size_t rank_v
152    = rank<T>::value;
153  template <class T, unsigned I = 0> constexpr size_t extent_v
154    = extent<T, I>::value;
155
156  // See C++14 20.10.6, type relations
157  template <class T, class U> constexpr bool is_same_v
158    = is_same<T, U>::value;
159  template <class Base, class Derived> constexpr bool is_base_of_v
160    = is_base_of<Base, Derived>::value;
161  template <class From, class To> constexpr bool is_convertible_v
162    = is_convertible<From, To>::value;
163
164  // 3.3.2, Other type transformations
165  template <class> class invocation_type; // not defined
166  template <class F, class... ArgTypes> class invocation_type<F(ArgTypes...)>;
167  template <class> class raw_invocation_type; // not defined
168  template <class F, class... ArgTypes> class raw_invocation_type<F(ArgTypes...)>;
169
170  template <class T>
171    using invocation_type_t = typename invocation_type<T>::type;
172  template <class T>
173    using raw_invocation_type_t = typename raw_invocation_type<T>::type;
174
175} // namespace fundamentals_v1
176} // namespace experimental
177} // namespace std
178
179 */
180
181#include <experimental/__config>
182
183#if _LIBCPP_STD_VER > 11
184
185#include <type_traits>
186
187_LIBCPP_BEGIN_NAMESPACE_LFTS
188
189#if __has_feature(cxx_variable_templates)
190
191// C++14 20.10.4.1, primary type categories
192
193template <class _Tp> _LIBCPP_CONSTEXPR bool is_void_v
194    = is_void<_Tp>::value;
195
196template <class _Tp> _LIBCPP_CONSTEXPR bool is_null_pointer_v
197    = is_null_pointer<_Tp>::value;
198
199template <class _Tp> _LIBCPP_CONSTEXPR bool is_integral_v
200    = is_integral<_Tp>::value;
201
202template <class _Tp> _LIBCPP_CONSTEXPR bool is_floating_point_v
203    = is_floating_point<_Tp>::value;
204
205template <class _Tp> _LIBCPP_CONSTEXPR bool is_array_v
206    = is_array<_Tp>::value;
207
208template <class _Tp> _LIBCPP_CONSTEXPR bool is_pointer_v
209    = is_pointer<_Tp>::value;
210
211template <class _Tp> _LIBCPP_CONSTEXPR bool is_lvalue_reference_v
212    = is_lvalue_reference<_Tp>::value;
213
214template <class _Tp> _LIBCPP_CONSTEXPR bool is_rvalue_reference_v
215    = is_rvalue_reference<_Tp>::value;
216
217template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_object_pointer_v
218    = is_member_object_pointer<_Tp>::value;
219
220template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_function_pointer_v
221    = is_member_function_pointer<_Tp>::value;
222
223template <class _Tp> _LIBCPP_CONSTEXPR bool is_enum_v
224    = is_enum<_Tp>::value;
225
226template <class _Tp> _LIBCPP_CONSTEXPR bool is_union_v
227    = is_union<_Tp>::value;
228
229template <class _Tp> _LIBCPP_CONSTEXPR bool is_class_v
230    = is_class<_Tp>::value;
231
232template <class _Tp> _LIBCPP_CONSTEXPR bool is_function_v
233    = is_function<_Tp>::value;
234
235// C++14 20.10.4.2,  composite type categories
236
237template <class _Tp> _LIBCPP_CONSTEXPR bool is_reference_v
238    = is_reference<_Tp>::value;
239
240template <class _Tp> _LIBCPP_CONSTEXPR bool is_arithmetic_v
241    = is_arithmetic<_Tp>::value;
242
243template <class _Tp> _LIBCPP_CONSTEXPR bool is_fundamental_v
244    = is_fundamental<_Tp>::value;
245
246template <class _Tp> _LIBCPP_CONSTEXPR bool is_object_v
247    = is_object<_Tp>::value;
248
249template <class _Tp> _LIBCPP_CONSTEXPR bool is_scalar_v
250    = is_scalar<_Tp>::value;
251
252template <class _Tp> _LIBCPP_CONSTEXPR bool is_compound_v
253    = is_compound<_Tp>::value;
254
255template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_pointer_v
256    = is_member_pointer<_Tp>::value;
257
258// C++14 20.10.4.3, type properties
259
260template <class _Tp> _LIBCPP_CONSTEXPR bool is_const_v
261    = is_const<_Tp>::value;
262
263template <class _Tp> _LIBCPP_CONSTEXPR bool is_volatile_v
264    = is_volatile<_Tp>::value;
265
266template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivial_v
267    = is_trivial<_Tp>::value;
268
269template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copyable_v
270    = is_trivially_copyable<_Tp>::value;
271
272template <class _Tp> _LIBCPP_CONSTEXPR bool is_standard_layout_v
273    = is_standard_layout<_Tp>::value;
274
275template <class _Tp> _LIBCPP_CONSTEXPR bool is_pod_v
276    = is_pod<_Tp>::value;
277
278template <class _Tp> _LIBCPP_CONSTEXPR bool is_literal_type_v
279    = is_literal_type<_Tp>::value;
280
281template <class _Tp> _LIBCPP_CONSTEXPR bool is_empty_v
282    = is_empty<_Tp>::value;
283
284template <class _Tp> _LIBCPP_CONSTEXPR bool is_polymorphic_v
285    = is_polymorphic<_Tp>::value;
286
287template <class _Tp> _LIBCPP_CONSTEXPR bool is_abstract_v
288    = is_abstract<_Tp>::value;
289
290template <class _Tp> _LIBCPP_CONSTEXPR bool is_final_v
291    = is_final<_Tp>::value;
292
293template <class _Tp> _LIBCPP_CONSTEXPR bool is_signed_v
294    = is_signed<_Tp>::value;
295
296template <class _Tp> _LIBCPP_CONSTEXPR bool is_unsigned_v
297    = is_unsigned<_Tp>::value;
298
299template <class _Tp, class ..._Ts> _LIBCPP_CONSTEXPR bool is_constructible_v
300    = is_constructible<_Tp, _Ts...>::value;
301
302template <class _Tp> _LIBCPP_CONSTEXPR bool is_default_constructible_v
303    = is_default_constructible<_Tp>::value;
304
305template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_constructible_v
306    = is_copy_constructible<_Tp>::value;
307
308template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_constructible_v
309    = is_move_constructible<_Tp>::value;
310
311template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_assignable_v
312    = is_assignable<_Tp, _Up>::value;
313
314template <class _Tp> _LIBCPP_CONSTEXPR bool is_copy_assignable_v
315    = is_copy_assignable<_Tp>::value;
316
317template <class _Tp> _LIBCPP_CONSTEXPR bool is_move_assignable_v
318    = is_move_assignable<_Tp>::value;
319
320template <class _Tp> _LIBCPP_CONSTEXPR bool is_destructible_v
321    = is_destructible<_Tp>::value;
322
323template <class _Tp, class ..._Ts> _LIBCPP_CONSTEXPR bool is_trivially_constructible_v
324    = is_trivially_constructible<_Tp, _Ts...>::value;
325
326template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_default_constructible_v
327    = is_trivially_default_constructible<_Tp>::value;
328
329template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_constructible_v
330    = is_trivially_copy_constructible<_Tp>::value;
331
332template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_constructible_v
333    = is_trivially_move_constructible<_Tp>::value;
334
335template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_trivially_assignable_v
336    = is_trivially_assignable<_Tp, _Up>::value;
337
338template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copy_assignable_v
339    = is_trivially_copy_assignable<_Tp>::value;
340
341template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_move_assignable_v
342    = is_trivially_move_assignable<_Tp>::value;
343
344template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_destructible_v
345    = is_trivially_destructible<_Tp>::value;
346
347template <class _Tp, class ..._Ts> _LIBCPP_CONSTEXPR bool is_nothrow_constructible_v
348    = is_nothrow_constructible<_Tp, _Ts...>::value;
349
350template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_default_constructible_v
351    = is_nothrow_default_constructible<_Tp>::value;
352
353template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_constructible_v
354    = is_nothrow_copy_constructible<_Tp>::value;
355
356template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_move_constructible_v
357    = is_nothrow_move_constructible<_Tp>::value;
358
359template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_nothrow_assignable_v
360    = is_nothrow_assignable<_Tp, _Up>::value;
361
362template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_copy_assignable_v
363    = is_nothrow_copy_assignable<_Tp>::value;
364
365template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_move_assignable_v
366    = is_nothrow_move_assignable<_Tp>::value;
367
368template <class _Tp> _LIBCPP_CONSTEXPR bool is_nothrow_destructible_v
369    = is_nothrow_destructible<_Tp>::value;
370
371template <class _Tp> _LIBCPP_CONSTEXPR bool has_virtual_destructor_v
372    = has_virtual_destructor<_Tp>::value;
373
374// C++14 20.10.5, type properties queries
375
376template <class _Tp> _LIBCPP_CONSTEXPR size_t alignment_of_v
377    = alignment_of<_Tp>::value;
378
379template <class _Tp> _LIBCPP_CONSTEXPR size_t rank_v
380    = rank<_Tp>::value;
381
382template <class _Tp, unsigned _Id = 0> _LIBCPP_CONSTEXPR size_t extent_v
383    = extent<_Tp, _Id>::value;
384
385// C++14 20.10.6, type relations
386
387template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_same_v
388    = is_same<_Tp, _Up>::value;
389
390template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_base_of_v
391    = is_base_of<_Tp, _Up>::value;
392
393template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_convertible_v
394    = is_convertible<_Tp, _Up>::value;
395
396#endif /* __has_feature(cxx_variable_templates) */
397
398// 3.3.2, Other type transformations
399/*
400template <class>
401class _LIBCPP_TYPE_VIS_ONLY raw_invocation_type;
402
403template <class _Fn, class ..._Args>
404class _LIBCPP_TYPE_VIS_ONLY raw_invocation_type<_Fn(_Args...)>;
405
406template <class>
407class _LIBCPP_TYPE_VIS_ONLY invokation_type;
408
409template <class _Fn, class ..._Args>
410class _LIBCPP_TYPE_VIS_ONLY invokation_type<_Fn(_Args...)>;
411
412template <class _Tp>
413using invokation_type_t = typename invokation_type<_Tp>::type;
414
415template <class _Tp>
416using raw_invocation_type_t = typename raw_invocation_type<_Tp>::type;
417*/
418
419_LIBCPP_END_NAMESPACE_LFTS
420
421#endif /* _LIBCPP_STD_VER > 11 */
422
423#endif /* _LIBCPP_EXPERIMENTAL_TYPE_TRAITS */
424