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_VOID_T_H
10 #define _LIBCPP___TYPE_TRAITS_VOID_T_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 #if _LIBCPP_STD_VER >= 17
21 template <class...>
22 using void_t = void;
23 #endif
24 
25 template <class...>
26 using __void_t = void;
27 
28 _LIBCPP_END_NAMESPACE_STD
29 
30 #endif // _LIBCPP___TYPE_TRAITS_VOID_T_H
31