opnsense-src/contrib/llvm-project/libcxx/include/__memory/voidify.h
Dimitry Andric c9157d925c Merge llvm-project main llvmorg-18-init-15088-gd14ee76181fb
This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvm-project main llvmorg-18-init-15088-gd14ee76181fb.

PR:		276104
MFC after:	1 month

(cherry picked from commit 5f757f3ff9)
2024-04-19 23:12:03 +02:00

30 lines
1,000 B
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_VOIDIFY_H
#define _LIBCPP___MEMORY_VOIDIFY_H
#include <__config>
#include <__memory/addressof.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <typename _Tp>
_LIBCPP_ALWAYS_INLINE _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void* __voidify(_Tp& __from) {
// Cast away cv-qualifiers to allow modifying elements of a range through const iterators.
return const_cast<void*>(static_cast<const volatile void*>(std::addressof(__from)));
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___MEMORY_VOIDIFY_H