libcxx/include/__new/destroying_delete_t.h

   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___NEW_DESTROYING_DELETE_T_H
  10 #define _LIBCPP___NEW_DESTROYING_DELETE_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 #if _LIBCPP_STD_VER >= 20
  19 // purposefully not using versioning namespace
  20 namespace std {
  21 // Enable the declaration even if the compiler doesn't support the language
  22 // feature.
  23 struct destroying_delete_t {
  24   explicit destroying_delete_t() = default;
  25 };
  26 inline constexpr destroying_delete_t destroying_delete{};
  27 } // namespace std
  28 #endif
  29
  30 #endif // _LIBCPP___NEW_DESTROYING_DELETE_T_H