1349cc55cSDimitry Andric //===----------------------------------------------------------------------===// 2349cc55cSDimitry Andric // 3349cc55cSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4349cc55cSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5349cc55cSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6349cc55cSDimitry Andric // 7349cc55cSDimitry Andric //===----------------------------------------------------------------------===// 8349cc55cSDimitry Andric 9*81ad6265SDimitry Andric #include <__config> 10349cc55cSDimitry Andric #include <memory> 11349cc55cSDimitry Andric 12349cc55cSDimitry Andric // Support for garbage collection was removed in C++23 by https://wg21.link/P2186R2. Libc++ implements 13349cc55cSDimitry Andric // that removal as an extension in all Standard versions. However, we still define the functions that 14349cc55cSDimitry Andric // were once part of the library's ABI for backwards compatibility. 15349cc55cSDimitry Andric 16349cc55cSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 17349cc55cSDimitry Andric 18349cc55cSDimitry Andric _LIBCPP_FUNC_VIS void declare_reachable(void*) {} 19349cc55cSDimitry Andric _LIBCPP_FUNC_VIS void declare_no_pointers(char*, size_t) {} 20349cc55cSDimitry Andric _LIBCPP_FUNC_VIS void undeclare_no_pointers(char*, size_t) {} 21349cc55cSDimitry Andric _LIBCPP_FUNC_VIS void* __undeclare_reachable(void* p) { return p; } 22349cc55cSDimitry Andric 23349cc55cSDimitry Andric _LIBCPP_END_NAMESPACE_STD 24