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_FOUND_RESULT_H
11 #define _LIBCPP___ALGORITHM_IN_FOUND_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 #if _LIBCPP_STD_VER > 17
22 
23 _LIBCPP_BEGIN_NAMESPACE_STD
24 
25 namespace ranges {
26 template <class _InIter1>
27 struct in_found_result {
28   _LIBCPP_NO_UNIQUE_ADDRESS _InIter1 in;
29   bool found;
30 
31   template <class _InIter2>
32     requires convertible_to<const _InIter1&, _InIter2>
33   _LIBCPP_HIDE_FROM_ABI constexpr operator in_found_result<_InIter2>() const & {
34     return {in, found};
35   }
36 
37   template <class _InIter2>
38     requires convertible_to<_InIter1, _InIter2>
39   _LIBCPP_HIDE_FROM_ABI constexpr operator in_found_result<_InIter2>() && {
40     return {std::move(in), found};
41   }
42 };
43 } // namespace ranges
44 
45 _LIBCPP_END_NAMESPACE_STD
46 
47 #endif // _LIBCPP_STD_VER > 17
48 
49 #endif // _LIBCPP___ALGORITHM_IN_FOUND_RESULT_H
50