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