Differential D138364 Diff 476707 libcxx/include/__algorithm/ranges_move_backward.h

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libcxx/include/__algorithm/ranges_move_backward.h

	//===----------------------------------------------------------------------===//			//===----------------------------------------------------------------------===//
	//			//
	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.			// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
	// See https://llvm.org/LICENSE.txt for license information.			// See https://llvm.org/LICENSE.txt for license information.
	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception			// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
	//			//
	//===----------------------------------------------------------------------===//			//===----------------------------------------------------------------------===//

	#ifndef _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H			#ifndef _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H
	#define _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H			#define _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H

	#include <__algorithm/in_out_result.h>			#include <__algorithm/in_out_result.h>
	#include <__algorithm/ranges_move.h>			#include <__algorithm/iterator_operations.h>
				#include <__algorithm/move_backward.h>
	#include <__config>			#include <__config>
	#include <__iterator/concepts.h>			#include <__iterator/concepts.h>
	#include <__iterator/iter_move.h>			#include <__iterator/iter_move.h>
	#include <__iterator/next.h>			#include <__iterator/next.h>
	#include <__iterator/reverse_iterator.h>
	#include <__ranges/access.h>			#include <__ranges/access.h>
	#include <__ranges/concepts.h>			#include <__ranges/concepts.h>
	#include <__ranges/dangling.h>			#include <__ranges/dangling.h>
	#include <__utility/move.h>			#include <__utility/move.h>

	#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)			#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
	# pragma GCC system_header			# pragma GCC system_header
	#endif			#endif

	#if _LIBCPP_STD_VER > 17			#if _LIBCPP_STD_VER > 17

	_LIBCPP_BEGIN_NAMESPACE_STD			_LIBCPP_BEGIN_NAMESPACE_STD

	namespace ranges {			namespace ranges {

	template <class _InIter, class _OutIter>			template <class _InIter, class _OutIter>
	using move_backward_result = in_out_result<_InIter, _OutIter>;			using move_backward_result = in_out_result<_InIter, _OutIter>;

	namespace __move_backward {			namespace __move_backward {
	struct __fn {			struct __fn {

	template <class _InIter, class _Sent, class _OutIter>			template <class _InIter, class _Sent, class _OutIter>
	_LIBCPP_HIDE_FROM_ABI constexpr static			_LIBCPP_HIDE_FROM_ABI constexpr static
	move_backward_result<_InIter, _OutIter> __move_backward_impl(_InIter __first, _Sent __last, _OutIter __result) {			move_backward_result<_InIter, _OutIter> __move_backward_impl(_InIter __first, _Sent __last, _OutIter __result) {
	auto __last_iter = ranges::next(__first, std::move(__last));			auto __ret = std::__move_backward<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result));
	auto __ret = ranges::move(std::make_reverse_iterator(__last_iter),			return {std::move(__ret.first), std::move(__ret.second)};
	std::make_reverse_iterator(__first),
	std::make_reverse_iterator(__result));
	return {std::move(__last_iter), std::move(__ret.out.base())};
	}			}

	template <bidirectional_iterator _InIter, sentinel_for<_InIter> _Sent, bidirectional_iterator _OutIter>			template <bidirectional_iterator _InIter, sentinel_for<_InIter> _Sent, bidirectional_iterator _OutIter>
	requires indirectly_movable<_InIter, _OutIter>			requires indirectly_movable<_InIter, _OutIter>
	_LIBCPP_HIDE_FROM_ABI constexpr			_LIBCPP_HIDE_FROM_ABI constexpr
	move_backward_result<_InIter, _OutIter> operator()(_InIter __first, _Sent __last, _OutIter __result) const {			move_backward_result<_InIter, _OutIter> operator()(_InIter __first, _Sent __last, _OutIter __result) const {
	return __move_backward_impl(std::move(__first), std::move(__last), std::move(__result));			return __move_backward_impl(std::move(__first), std::move(__last), std::move(__result));
	}			}
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