bbb0f2c759
Our best guess is that the two syntaxes should have exactly equivalent effects, so, let's be consistent with what we do in libcxx/include/. I've left `#include "include/x.h"` and `#include "../y.h"` alone because I'm less sure that they're interchangeable, and they aren't inconsistent with libcxx/include/ because libcxx/include/ never does that kind of thing. Also, use the `_LIBCPP_PUSH_MACROS/POP_MACROS` dance for `<__undef_macros>`, even though it's technically unnecessary in a standalone .cpp file, just so we have consistently one way to do it. Differential Revision: https://reviews.llvm.org/D119561
24 lines
979 B
C++
24 lines
979 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include <__config>
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#include <memory>
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// Support for garbage collection was removed in C++23 by https://wg21.link/P2186R2. Libc++ implements
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// that removal as an extension in all Standard versions. However, we still define the functions that
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// were once part of the library's ABI for backwards compatibility.
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_LIBCPP_BEGIN_NAMESPACE_STD
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_LIBCPP_FUNC_VIS void declare_reachable(void*) {}
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_LIBCPP_FUNC_VIS void declare_no_pointers(char*, size_t) {}
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_LIBCPP_FUNC_VIS void undeclare_no_pointers(char*, size_t) {}
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_LIBCPP_FUNC_VIS void* __undeclare_reachable(void* p) { return p; }
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_LIBCPP_END_NAMESPACE_STD
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