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_OUT_OUT_RESULT_H 11 #define _LIBCPP___ALGORITHM_IN_OUT_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_PUSH_MACROS 22 #include <__undef_macros> 23 24 _LIBCPP_BEGIN_NAMESPACE_STD 25 26 #if _LIBCPP_STD_VER >= 20 27 28 namespace ranges { 29 template <class _InIter1, class _OutIter1, class _OutIter2> 30 struct in_out_out_result { 31 _LIBCPP_NO_UNIQUE_ADDRESS _InIter1 in; 32 _LIBCPP_NO_UNIQUE_ADDRESS _OutIter1 out1; 33 _LIBCPP_NO_UNIQUE_ADDRESS _OutIter2 out2; 34 35 template <class _InIter2, class _OutIter3, class _OutIter4> 36 requires convertible_to<const _InIter1&, _InIter2> && convertible_to<const _OutIter1&, _OutIter3> && 37 convertible_to<const _OutIter2&, _OutIter4> 38 _LIBCPP_HIDE_FROM_ABI constexpr operator in_out_out_result<_InIter2, _OutIter3, _OutIter4>() const& { 39 return {in, out1, out2}; 40 } 41 42 template <class _InIter2, class _OutIter3, class _OutIter4> 43 requires convertible_to<_InIter1, _InIter2> && convertible_to<_OutIter1, _OutIter3> && 44 convertible_to<_OutIter2, _OutIter4> 45 _LIBCPP_HIDE_FROM_ABI constexpr operator in_out_out_result<_InIter2, _OutIter3, _OutIter4>() && { 46 return {std::move(in), std::move(out1), std::move(out2)}; 47 } 48 }; 49 } // namespace ranges 50 51 #endif // _LIBCPP_STD_VER >= 20 52 53 _LIBCPP_END_NAMESPACE_STD 54 55 _LIBCPP_POP_MACROS 56 57 #endif // _LIBCPP___ALGORITHM_IN_OUT_OUT_RESULT_H 58