diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__algorithm/in_in_out_result.h')
-rw-r--r-- | contrib/llvm-project/libcxx/include/__algorithm/in_in_out_result.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__algorithm/in_in_out_result.h b/contrib/llvm-project/libcxx/include/__algorithm/in_in_out_result.h new file mode 100644 index 000000000000..6b50e0e24564 --- /dev/null +++ b/contrib/llvm-project/libcxx/include/__algorithm/in_in_out_result.h @@ -0,0 +1,56 @@ +// -*- 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 +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___ALGORITHM_IN_IN_OUT_RESULT_H +#define _LIBCPP___ALGORITHM_IN_IN_OUT_RESULT_H + +#include <__concepts/convertible_to.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 + +namespace ranges { + +template <class _InIter1, class _InIter2, class _OutIter1> +struct in_in_out_result { + _LIBCPP_NO_UNIQUE_ADDRESS _InIter1 in1; + _LIBCPP_NO_UNIQUE_ADDRESS _InIter2 in2; + _LIBCPP_NO_UNIQUE_ADDRESS _OutIter1 out; + + template <class _InIter3, class _InIter4, class _OutIter2> + requires convertible_to<const _InIter1&, _InIter3> + && convertible_to<const _InIter2&, _InIter4> && convertible_to<const _OutIter1&, _OutIter2> + _LIBCPP_HIDE_FROM_ABI constexpr + operator in_in_out_result<_InIter3, _InIter4, _OutIter2>() const& { + return {in1, in2, out}; + } + + template <class _InIter3, class _InIter4, class _OutIter2> + requires convertible_to<_InIter1, _InIter3> + && convertible_to<_InIter2, _InIter4> && convertible_to<_OutIter1, _OutIter2> + _LIBCPP_HIDE_FROM_ABI constexpr + operator in_in_out_result<_InIter3, _InIter4, _OutIter2>() && { + return {std::move(in1), std::move(in2), std::move(out)}; + } +}; + +} // namespace ranges + +#endif // _LIBCPP_STD_VER >= 20 + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP___ALGORITHM_IN_IN_OUT_RESULT_H |