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d10dc5a06f
We originally put implementation-detail function objects into individual namespaces for `std::ranges` without a good reason for doing so. This practice was continued, presumably because there was prior art. Since there's no reason to keep these namespaces, this commit removes them, which will slightly impact binary size. This commit does not apply to CPOs, some of which need additional work.
75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H
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#define _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H
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#include <__algorithm/in_out_result.h>
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#include <__algorithm/iterator_operations.h>
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#include <__algorithm/move_backward.h>
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#include <__config>
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#include <__iterator/concepts.h>
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#include <__iterator/iter_move.h>
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#include <__iterator/next.h>
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#include <__ranges/access.h>
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#include <__ranges/concepts.h>
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#include <__ranges/dangling.h>
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#include <__utility/move.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace ranges {
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template <class _InIter, class _OutIter>
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using move_backward_result = in_out_result<_InIter, _OutIter>;
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struct __move_backward {
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template <class _InIter, class _Sent, class _OutIter>
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_LIBCPP_HIDE_FROM_ABI constexpr static move_backward_result<_InIter, _OutIter>
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__move_backward_impl(_InIter __first, _Sent __last, _OutIter __result) {
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auto __ret = std::__move_backward<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result));
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return {std::move(__ret.first), std::move(__ret.second)};
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}
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template <bidirectional_iterator _InIter, sentinel_for<_InIter> _Sent, bidirectional_iterator _OutIter>
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requires indirectly_movable<_InIter, _OutIter>
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_LIBCPP_HIDE_FROM_ABI constexpr move_backward_result<_InIter, _OutIter>
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operator()(_InIter __first, _Sent __last, _OutIter __result) const {
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return __move_backward_impl(std::move(__first), std::move(__last), std::move(__result));
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}
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template <bidirectional_range _Range, bidirectional_iterator _Iter>
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requires indirectly_movable<iterator_t<_Range>, _Iter>
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_LIBCPP_HIDE_FROM_ABI constexpr move_backward_result<borrowed_iterator_t<_Range>, _Iter>
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operator()(_Range&& __range, _Iter __result) const {
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return __move_backward_impl(ranges::begin(__range), ranges::end(__range), std::move(__result));
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}
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};
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inline namespace __cpo {
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inline constexpr auto move_backward = __move_backward{};
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} // namespace __cpo
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} // namespace ranges
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H
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