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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ALGORITHM_RANGES_COPY_H
#define _LIBCPP___ALGORITHM_RANGES_COPY_H
#include <__algorithm/copy.h>
#include <__algorithm/in_out_result.h>
#include <__config>
#include <__functional/identity.h>
#include <__iterator/concepts.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/dangling.h>
#include <__utility/move.h>
#include <__utility/pair.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#if _LIBCPP_STD_VER > 17
_LIBCPP_BEGIN_NAMESPACE_STD
namespace ranges {
template <class _InIter, class _OutIter>
using copy_result = in_out_result<_InIter, _OutIter>;
namespace __copy {
struct __fn {
template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter>
requires indirectly_copyable<_InIter, _OutIter>
_LIBCPP_HIDE_FROM_ABI constexpr
copy_result<_InIter, _OutIter> operator()(_InIter __first, _Sent __last, _OutIter __result) const {
auto __ret = std::__copy(std::move(__first), std::move(__last), std::move(__result));
return {std::move(__ret.first), std::move(__ret.second)};
}
template <input_range _Range, weakly_incrementable _OutIter>
requires indirectly_copyable<iterator_t<_Range>, _OutIter>
_LIBCPP_HIDE_FROM_ABI constexpr
copy_result<borrowed_iterator_t<_Range>, _OutIter> operator()(_Range&& __r, _OutIter __result) const {
auto __ret = std::__copy(ranges::begin(__r), ranges::end(__r), std::move(__result));
return {std::move(__ret.first), std::move(__ret.second)};
}
};
} // namespace __copy
inline namespace __cpo {
inline constexpr auto copy = __copy::__fn{};
} // namespace __cpo
} // namespace ranges
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER > 17
#endif // _LIBCPP___ALGORITHM_RANGES_COPY_H
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