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Upgrade to 2022-era LLVM LIBCXX

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Justine Tunney 2024-05-27 02:12:27 -07:00
parent 2f4ca71f26
commit 8e68384e15
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2078 changed files with 165657 additions and 65010 deletions
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59
third_party/libcxx/__iterator/move_sentinel.h vendored Normal file
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//===----------------------------------------------------------------------===//
//
// 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___ITERATOR_MOVE_SENTINEL_H
#define _LIBCPP___ITERATOR_MOVE_SENTINEL_H
#include <__concepts/assignable.h>
#include <__concepts/convertible_to.h>
#include <__concepts/semiregular.h>
#include <__config>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 20
template <semiregular _Sent>
class _LIBCPP_TEMPLATE_VIS move_sentinel
{
public:
_LIBCPP_HIDE_FROM_ABI
move_sentinel() = default;
_LIBCPP_HIDE_FROM_ABI constexpr
explicit move_sentinel(_Sent __s) : __last_(std::move(__s)) {}
template <class _S2>
requires convertible_to<const _S2&, _Sent>
_LIBCPP_HIDE_FROM_ABI constexpr
move_sentinel(const move_sentinel<_S2>& __s) : __last_(__s.base()) {}
template <class _S2>
requires assignable_from<_Sent&, const _S2&>
_LIBCPP_HIDE_FROM_ABI constexpr
move_sentinel& operator=(const move_sentinel<_S2>& __s)
{ __last_ = __s.base(); return *this; }
_LIBCPP_HIDE_FROM_ABI constexpr _Sent base() const { return __last_; }
private:
_Sent __last_ = _Sent();
};
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(move_sentinel);
#endif // _LIBCPP_STD_VER >= 20
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ITERATOR_MOVE_SENTINEL_H