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_BEGIN_NAMESPACE_STD
22 
23 #if _LIBCPP_STD_VER > 17
24 
25 namespace ranges {
26 template <class _I1, class _O1, class _O2>
27 struct in_out_out_result {
28   _LIBCPP_NO_UNIQUE_ADDRESS _I1 in;
29   _LIBCPP_NO_UNIQUE_ADDRESS _O1 out1;
30   _LIBCPP_NO_UNIQUE_ADDRESS _O2 out2;
31 
32   template <class _II1, class _OO1, class _OO2>
33     requires convertible_to<const _I1&, _II1> && convertible_to<const _O1&, _OO1> && convertible_to<const _O2&, _OO2>
34   _LIBCPP_HIDE_FROM_ABI constexpr
35   operator in_out_out_result<_II1, _OO1, _OO2>() const& {
36     return {in, out1, out2};
37   }
38 
39   template <class _II1, class _OO1, class _OO2>
40     requires convertible_to<_I1, _II1> && convertible_to<_O1, _OO1> && convertible_to<_O2, _OO2>
41   _LIBCPP_HIDE_FROM_ABI constexpr
42   operator in_out_out_result<_II1, _OO1, _OO2>() && {
43     return {_VSTD::move(in), _VSTD::move(out1), _VSTD::move(out2)};
44   }
45 };
46 } // namespace ranges
47 
48 #endif // _LIBCPP_STD_VER > 17
49 
50 _LIBCPP_END_NAMESPACE_STD
51 
52 #endif // _LIBCPP___ALGORITHM_IN_OUT_OUT_RESULT_H
53