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_LIBCPP_PUSH_MACROS
22#include <__undef_macros>
23
24#if _LIBCPP_STD_VER >= 20
25
26_LIBCPP_BEGIN_NAMESPACE_STD
27
28namespace ranges {
29template <class _InIter1>
30struct in_found_result {
31  _LIBCPP_NO_UNIQUE_ADDRESS _InIter1 in;
32  bool found;
33
34  template <class _InIter2>
35    requires convertible_to<const _InIter1&, _InIter2>
36  _LIBCPP_HIDE_FROM_ABI constexpr operator in_found_result<_InIter2>() const& {
37    return {in, found};
38  }
39
40  template <class _InIter2>
41    requires convertible_to<_InIter1, _InIter2>
42  _LIBCPP_HIDE_FROM_ABI constexpr operator in_found_result<_InIter2>() && {
43    return {std::move(in), found};
44  }
45};
46} // namespace ranges
47
48_LIBCPP_END_NAMESPACE_STD
49
50#endif // _LIBCPP_STD_VER >= 20
51
52_LIBCPP_POP_MACROS
53
54#endif // _LIBCPP___ALGORITHM_IN_FOUND_RESULT_H
55