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Section: 27.7.11 [alg.rotate] Status: WP Submitter: Hewill Kang Opened: 2022-08-25 Last modified: 2022-11-17
Priority: Not Prioritized
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The range version of ranges::rotate_copy directly passes the result to the iterator-pair version. Since the type of result only models weakly_incrementable and may not be copied, we should use std::move here.
[2022-09-23; Reflector poll]
Set status to Tentatively Ready after seven votes in favour during reflector poll.
[2022-11-12 Approved at November 2022 meeting in Kona. Status changed: Voting → WP.]
This wording is relative to N4910.
Modify 27.7.11 [alg.rotate] as indicated:
template<forward_range R, weakly_incrementable O> requires indirectly_copyable<iterator_t<R>, O> constexpr ranges::rotate_copy_result<borrowed_iterator_t<R>, O> ranges::rotate_copy(R&& r, iterator_t<R> middle, O result);
-11- Effects: Equivalent to:return ranges::rotate_copy(ranges::begin(r), middle, ranges::end(r), result);