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