v1/__new/destroying_delete_t.h

0001 //===----------------------------------------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef _LIBCPP___NEW_DESTROYING_DELETE_T_H
0010 #define _LIBCPP___NEW_DESTROYING_DELETE_T_H
0011
0012 #include <__config>
0013
0014 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0015 #  pragma GCC system_header
0016 #endif
0017
0018 #if _LIBCPP_STD_VER >= 20
0019 // purposefully not using versioning namespace
0020 namespace std {
0021 // Enable the declaration even if the compiler doesn't support the language
0022 // feature.
0023 struct destroying_delete_t {
0024   explicit destroying_delete_t() = default;
0025 };
0026 inline constexpr destroying_delete_t destroying_delete{};
0027 } // namespace std
0028 #endif
0029
0030 #endif // _LIBCPP___NEW_DESTROYING_DELETE_T_H