754ea6fd4d
Also: - refactor out `__voidify`; - use the `destroy` algorithm internally; - refactor out helper classes used in tests for `uninitialized_*` algorithms. Differential Revision: https://reviews.llvm.org/D115626
31 lines
1002 B
C++
31 lines
1002 B
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_VOIDIFY_H
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#define _LIBCPP___MEMORY_VOIDIFY_H
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#include <__config>
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#include <__memory/addressof.h>
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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_BEGIN_NAMESPACE_STD
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template <typename _Tp>
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_LIBCPP_ALWAYS_INLINE _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 void* __voidify(_Tp& __from) {
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// Cast away cv-qualifiers to allow modifying elements of a range through const iterators.
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return const_cast<void*>(static_cast<const volatile void*>(_VSTD::addressof(__from)));
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___MEMORY_VOIDIFY_H
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