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
50 lines
1.4 KiB
C++
50 lines
1.4 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_FUN_RESULT_H
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#define _LIBCPP___ALGORITHM_IN_FUN_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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#ifndef _LIBCPP_HAS_NO_CONCEPTS
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namespace ranges {
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template <class _Ip, class _Fp>
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struct in_fun_result {
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_LIBCPP_NO_UNIQUE_ADDRESS _Ip in;
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_LIBCPP_NO_UNIQUE_ADDRESS _Fp fun;
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template <class _I2, class _F2>
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requires convertible_to<const _Ip&, _I2> && convertible_to<const _Fp&, _F2>
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_LIBCPP_HIDE_FROM_ABI constexpr operator in_fun_result<_I2, _F2>() const & {
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return {in, fun};
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}
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template <class _I2, class _F2>
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requires convertible_to<_Ip, _I2> && convertible_to<_Fp, _F2>
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_LIBCPP_HIDE_FROM_ABI constexpr operator in_fun_result<_I2, _F2>() && {
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return {std::move(in), std::move(fun)};
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}
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};
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} // namespace ranges
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#endif // _LIBCPP_HAS_NO_RANGES
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_IN_FUN_RESULT_H
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