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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___ALGORITHM_RANGES_COPY_H10#define _LIBCPP___ALGORITHM_RANGES_COPY_H11 12#include <__algorithm/copy.h>13#include <__algorithm/in_out_result.h>14#include <__config>15#include <__functional/identity.h>16#include <__iterator/concepts.h>17#include <__ranges/access.h>18#include <__ranges/concepts.h>19#include <__ranges/dangling.h>20#include <__utility/move.h>21#include <__utility/pair.h>22 23#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)24# pragma GCC system_header25#endif26 27_LIBCPP_PUSH_MACROS28#include <__undef_macros>29 30#if _LIBCPP_STD_VER >= 2031 32_LIBCPP_BEGIN_NAMESPACE_STD33 34namespace ranges {35 36template <class _InIter, class _OutIter>37using copy_result = in_out_result<_InIter, _OutIter>;38 39struct __copy {40 template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter>41 requires indirectly_copyable<_InIter, _OutIter>42 _LIBCPP_HIDE_FROM_ABI constexpr copy_result<_InIter, _OutIter>43 operator()(_InIter __first, _Sent __last, _OutIter __result) const {44 auto __ret = std::__copy(std::move(__first), std::move(__last), std::move(__result));45 return {std::move(__ret.first), std::move(__ret.second)};46 }47 48 template <input_range _Range, weakly_incrementable _OutIter>49 requires indirectly_copyable<iterator_t<_Range>, _OutIter>50 _LIBCPP_HIDE_FROM_ABI constexpr copy_result<borrowed_iterator_t<_Range>, _OutIter>51 operator()(_Range&& __r, _OutIter __result) const {52 auto __ret = std::__copy(ranges::begin(__r), ranges::end(__r), std::move(__result));53 return {std::move(__ret.first), std::move(__ret.second)};54 }55};56 57inline namespace __cpo {58inline constexpr auto copy = __copy{};59} // namespace __cpo60} // namespace ranges61 62_LIBCPP_END_NAMESPACE_STD63 64#endif // _LIBCPP_STD_VER >= 2065 66_LIBCPP_POP_MACROS67 68#endif // _LIBCPP___ALGORITHM_RANGES_COPY_H69