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_ALIGNMENT_OF_H
10 #define _LIBCPP___TYPE_TRAITS_ALIGNMENT_OF_H
11 
12 #include <__config>
13 #include <__type_traits/integral_constant.h>
14 #include <cstddef>
15 
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 #  pragma GCC system_header
18 #endif
19 
20 _LIBCPP_BEGIN_NAMESPACE_STD
21 
22 template <class _Tp>
23 struct _LIBCPP_TEMPLATE_VIS alignment_of : public integral_constant<size_t, _LIBCPP_ALIGNOF(_Tp)> {};
24 
25 #if _LIBCPP_STD_VER >= 17
26 template <class _Tp>
27 inline constexpr size_t alignment_of_v = _LIBCPP_ALIGNOF(_Tp);
28 #endif
29 
30 _LIBCPP_END_NAMESPACE_STD
31 
32 #endif // _LIBCPP___TYPE_TRAITS_ALIGNMENT_OF_H
33