diff options
Diffstat (limited to 'lib/libcxx/src/legacy_pointer_safety.cpp')
| -rw-r--r-- | lib/libcxx/src/legacy_pointer_safety.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/libcxx/src/legacy_pointer_safety.cpp b/lib/libcxx/src/legacy_pointer_safety.cpp new file mode 100644 index 0000000000..34f5613ae2 --- /dev/null +++ b/lib/libcxx/src/legacy_pointer_safety.cpp @@ -0,0 +1,23 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "__config" +#include <memory> + +// Support for garbage collection was removed in C++23 by https://wg21.link/P2186R2. Libc++ implements +// that removal as an extension in all Standard versions. However, we still define the functions that +// were once part of the library's ABI for backwards compatibility. + +_LIBCPP_BEGIN_NAMESPACE_STD + +_LIBCPP_FUNC_VIS void declare_reachable(void*) {} +_LIBCPP_FUNC_VIS void declare_no_pointers(char*, size_t) {} +_LIBCPP_FUNC_VIS void undeclare_no_pointers(char*, size_t) {} +_LIBCPP_FUNC_VIS void* __undeclare_reachable(void* p) { return p; } + +_LIBCPP_END_NAMESPACE_STD |