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_ADD_VOLATILE_H
10 #define _LIBCPP___TYPE_TRAITS_ADD_VOLATILE_H
11 
12 #include <__config>
13 
14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
15 #  pragma GCC system_header
16 #endif
17 
18 _LIBCPP_BEGIN_NAMESPACE_STD
19 
20 template <class _Tp>
21 struct _LIBCPP_TEMPLATE_VIS add_volatile {
22   typedef _LIBCPP_NODEBUG volatile _Tp type;
23 };
24 
25 #if _LIBCPP_STD_VER >= 14
26 template <class _Tp>
27 using add_volatile_t = typename add_volatile<_Tp>::type;
28 #endif
29 
30 _LIBCPP_END_NAMESPACE_STD
31 
32 #endif // _LIBCPP___TYPE_TRAITS_ADD_VOLATILE_H
33