104eeddc0SDimitry Andric // -*- C++ -*- 204eeddc0SDimitry Andric //===----------------------------------------------------------------------===// 304eeddc0SDimitry Andric // 404eeddc0SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 504eeddc0SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 604eeddc0SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 704eeddc0SDimitry Andric // 804eeddc0SDimitry Andric //===----------------------------------------------------------------------===// 904eeddc0SDimitry Andric 1004eeddc0SDimitry Andric #ifndef _LIBCPP___ALGORITHM_IN_IN_RESULT_H 1104eeddc0SDimitry Andric #define _LIBCPP___ALGORITHM_IN_IN_RESULT_H 1204eeddc0SDimitry Andric 1304eeddc0SDimitry Andric #include <__concepts/convertible_to.h> 1404eeddc0SDimitry Andric #include <__config> 1504eeddc0SDimitry Andric #include <__utility/move.h> 1604eeddc0SDimitry Andric 171838bd0fSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 181838bd0fSDimitry Andric # pragma GCC system_header 191838bd0fSDimitry Andric #endif 201838bd0fSDimitry Andric 21*b3edf446SDimitry Andric _LIBCPP_PUSH_MACROS 22*b3edf446SDimitry Andric #include <__undef_macros> 23*b3edf446SDimitry Andric 2404eeddc0SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 2504eeddc0SDimitry Andric 2606c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 20 2704eeddc0SDimitry Andric 2804eeddc0SDimitry Andric namespace ranges { 291838bd0fSDimitry Andric 3081ad6265SDimitry Andric template <class _InIter1, class _InIter2> 3104eeddc0SDimitry Andric struct in_in_result { 3281ad6265SDimitry Andric _LIBCPP_NO_UNIQUE_ADDRESS _InIter1 in1; 3381ad6265SDimitry Andric _LIBCPP_NO_UNIQUE_ADDRESS _InIter2 in2; 3404eeddc0SDimitry Andric 3581ad6265SDimitry Andric template <class _InIter3, class _InIter4> 3681ad6265SDimitry Andric requires convertible_to<const _InIter1&, _InIter3> && convertible_to<const _InIter2&, _InIter4> in_in_resultin_in_result37cb14a3feSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr operator in_in_result<_InIter3, _InIter4>() const& { 3804eeddc0SDimitry Andric return {in1, in2}; 3904eeddc0SDimitry Andric } 4004eeddc0SDimitry Andric 4181ad6265SDimitry Andric template <class _InIter3, class _InIter4> 4281ad6265SDimitry Andric requires convertible_to<_InIter1, _InIter3> && convertible_to<_InIter2, _InIter4> in_in_resultin_in_result43cb14a3feSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr operator in_in_result<_InIter3, _InIter4>() && { 4481ad6265SDimitry Andric return {std::move(in1), std::move(in2)}; 4581ad6265SDimitry Andric } 4604eeddc0SDimitry Andric }; 471838bd0fSDimitry Andric 4804eeddc0SDimitry Andric } // namespace ranges 4904eeddc0SDimitry Andric 5006c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 20 5104eeddc0SDimitry Andric 5204eeddc0SDimitry Andric _LIBCPP_END_NAMESPACE_STD 5304eeddc0SDimitry Andric 54*b3edf446SDimitry Andric _LIBCPP_POP_MACROS 55*b3edf446SDimitry Andric 5604eeddc0SDimitry Andric #endif // _LIBCPP___ALGORITHM_IN_IN_RESULT_H 57