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_RESULT_H 11 #define _LIBCPP___ALGORITHM_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 !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 24 25 namespace ranges { 26 27 template<class _InputIterator, class _OutputIterator> 28 struct in_out_result { 29 [[no_unique_address]] _InputIterator in; 30 [[no_unique_address]] _OutputIterator out; 31 32 template <class _InputIterator2, class _OutputIterator2> 33 requires convertible_to<const _InputIterator&, _InputIterator2> && convertible_to<const _OutputIterator&, 34 _OutputIterator2> 35 _LIBCPP_HIDE_FROM_ABI 36 constexpr operator in_out_result<_InputIterator2, _OutputIterator2>() const & { 37 return {in, out}; 38 } 39 40 template <class _InputIterator2, class _OutputIterator2> 41 requires convertible_to<_InputIterator, _InputIterator2> && convertible_to<_OutputIterator, _OutputIterator2> 42 _LIBCPP_HIDE_FROM_ABI 43 constexpr operator in_out_result<_InputIterator2, _OutputIterator2>() && { 44 return {_VSTD::move(in), _VSTD::move(out)}; 45 } 46 }; 47 48 } // namespace ranges 49 50 #endif // !defined(_LIBCPP_HAS_NO_CONCEPTS) && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 51 52 _LIBCPP_END_NAMESPACE_STD 53 54 #endif // _LIBCPP___ALGORITHM_IN_OUT_RESULT_H 55