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Revert "[libc++] LWG3870: Remove
voidify
(#110355)"
This reverts commit 78f9a8b.
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,30 @@ | ||
// -*- 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 | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#ifndef _LIBCPP___MEMORY_VOIDIFY_H | ||
#define _LIBCPP___MEMORY_VOIDIFY_H | ||
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#include <__config> | ||
#include <__memory/addressof.h> | ||
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | ||
# pragma GCC system_header | ||
#endif | ||
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_LIBCPP_BEGIN_NAMESPACE_STD | ||
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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))); | ||
} | ||
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_LIBCPP_END_NAMESPACE_STD | ||
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#endif // _LIBCPP___MEMORY_VOIDIFY_H |
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