57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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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#ifndef _LIBCPP___MEMORY_POINTER_SAFETY_H
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#define _LIBCPP___MEMORY_POINTER_SAFETY_H
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if !defined(_LIBCPP_CXX03_LANG)
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enum class pointer_safety : unsigned char {
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relaxed,
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preferred,
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strict
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};
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inline _LIBCPP_INLINE_VISIBILITY
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pointer_safety get_pointer_safety() _NOEXCEPT {
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return pointer_safety::relaxed;
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}
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_LIBCPP_FUNC_VIS void declare_reachable(void* __p);
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_LIBCPP_FUNC_VIS void declare_no_pointers(char* __p, size_t __n);
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_LIBCPP_FUNC_VIS void undeclare_no_pointers(char* __p, size_t __n);
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_LIBCPP_FUNC_VIS void* __undeclare_reachable(void* __p);
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template <class _Tp>
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inline _LIBCPP_INLINE_VISIBILITY
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_Tp*
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undeclare_reachable(_Tp* __p)
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{
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return static_cast<_Tp*>(__undeclare_reachable(__p));
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}
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#endif // !C++03
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___MEMORY_POINTER_SAFETY_H
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