1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP___ALGORITHM_IN_IN_OUT_RESULT_H 11#define _LIBCPP___ALGORITHM_IN_IN_OUT_RESULT_H 12 13#include <__concepts/convertible_to.h> 14#include <__config> 15#include <__utility/move.h> 16 17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18# pragma GCC system_header 19#endif 20 21_LIBCPP_BEGIN_NAMESPACE_STD 22 23#if _LIBCPP_STD_VER > 17 24 25namespace ranges { 26 27template <class _InIter1, class _InIter2, class _OutIter1> 28struct in_in_out_result { 29 _LIBCPP_NO_UNIQUE_ADDRESS _InIter1 in1; 30 _LIBCPP_NO_UNIQUE_ADDRESS _InIter2 in2; 31 _LIBCPP_NO_UNIQUE_ADDRESS _OutIter1 out; 32 33 template <class _InIter3, class _InIter4, class _OutIter2> 34 requires convertible_to<const _InIter1&, _InIter3> 35 && convertible_to<const _InIter2&, _InIter4> && convertible_to<const _OutIter1&, _OutIter2> 36 _LIBCPP_HIDE_FROM_ABI constexpr 37 operator in_in_out_result<_InIter3, _InIter4, _OutIter2>() const& { 38 return {in1, in2, out}; 39 } 40 41 template <class _InIter3, class _InIter4, class _OutIter2> 42 requires convertible_to<_InIter1, _InIter3> 43 && convertible_to<_InIter2, _InIter4> && convertible_to<_OutIter1, _OutIter2> 44 _LIBCPP_HIDE_FROM_ABI constexpr 45 operator in_in_out_result<_InIter3, _InIter4, _OutIter2>() && { 46 return {std::move(in1), std::move(in2), std::move(out)}; 47 } 48}; 49 50} // namespace ranges 51 52#endif // _LIBCPP_STD_VER > 17 53 54_LIBCPP_END_NAMESPACE_STD 55 56#endif // _LIBCPP___ALGORITHM_IN_IN_OUT_RESULT_H 57