1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef _LIBCPP___TYPE_TRAITS_HAS_UNIQUE_OBJECT_REPRESENTATION_H
10 #define _LIBCPP___TYPE_TRAITS_HAS_UNIQUE_OBJECT_REPRESENTATION_H
11 
12 #include <__config>
13 #include <__type_traits/integral_constant.h>
14 #include <__type_traits/remove_all_extents.h>
15 #include <__type_traits/remove_cv.h>
16 
17 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18 #  pragma GCC system_header
19 #endif
20 
21 _LIBCPP_BEGIN_NAMESPACE_STD
22 
23 #if _LIBCPP_STD_VER > 14
24 
25 template <class _Tp> struct _LIBCPP_TEMPLATE_VIS has_unique_object_representations
26     : public integral_constant<bool,
27        __has_unique_object_representations(remove_cv_t<remove_all_extents_t<_Tp>>)> {};
28 
29 template <class _Tp>
30 inline constexpr bool has_unique_object_representations_v = has_unique_object_representations<_Tp>::value;
31 
32 #endif
33 
34 _LIBCPP_END_NAMESPACE_STD
35 
36 #endif // _LIBCPP___TYPE_TRAITS_HAS_UNIQUE_OBJECT_REPRESENTATION_H
37