368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
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___ALGORITHM_IN_OUT_RESULT_H
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#define _LIBCPP___ALGORITHM_IN_OUT_RESULT_H
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#include <__concepts/convertible_to.h>
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#include <__config>
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#include <__utility/move.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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#if !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
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namespace ranges {
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template<class _InputIterator, class _OutputIterator>
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struct in_out_result {
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_LIBCPP_NO_UNIQUE_ADDRESS _InputIterator in;
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_LIBCPP_NO_UNIQUE_ADDRESS _OutputIterator out;
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template <class _InputIterator2, class _OutputIterator2>
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requires convertible_to<const _InputIterator&, _InputIterator2> && convertible_to<const _OutputIterator&,
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_OutputIterator2>
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_LIBCPP_HIDE_FROM_ABI
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constexpr operator in_out_result<_InputIterator2, _OutputIterator2>() const & {
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return {in, out};
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}
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template <class _InputIterator2, class _OutputIterator2>
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requires convertible_to<_InputIterator, _InputIterator2> && convertible_to<_OutputIterator, _OutputIterator2>
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_LIBCPP_HIDE_FROM_ABI
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constexpr operator in_out_result<_InputIterator2, _OutputIterator2>() && {
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return {_VSTD::move(in), _VSTD::move(out)};
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}
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};
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} // namespace ranges
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#endif // !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_IN_OUT_RESULT_H
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