Was seen by SG9 on 2021-10-11. There was a recommendation to split feature test macros into separate ones.

Paper was voted forward to LEWG as C++23 (Ranges' T1) item:

POLL: Forward “P2442R0: Windowing range adaptors: views::chunk and views::slide” to LEWG (Ranges T1 item) for C++23.

No Objection To Unanimous Consent

2021-10-26 Library Evolution Telecon

P2442R0: Windowing range adaptors: views::chunk and views::slide

2021-10-26 Library Evolution Telecon Minutes

Chair: Inbal Levi

Champion: Tim Song

Minute Taker: Ben Craig

Polls

POLL: Split the feature test macro and forward P2442R0: Windowing range adaptors: views::chunk and views::slide to LWG for C++23 (to be confirmed with electronic poll) with priority 2.

Attendance: 15

__ # of Authors:__ 1

Author Position: SF

Outcome: Strong consensus in favor

Outcome

P2442R0 was forwarded to LWG (to be approved with electronic poll), with request to split the feature test macro into "chunk" and "slide".

LWG reviewed and approved. Review notes here: https://wiki.edg.com/bin/view/Wg21telecons2021/P2442-20211126
Voting: https://wiki.edg.com/bin/view/Wg21telecons2021/Vote-20211203

poll: Put p2442r1 into the C++23 working paper

present: 12

2021-11 Library Evolution Electronic Poll Outcomes

Poll 4: Modify [P2442R0] (Windowing Range Adaptors: views::chunk And views::slide) by replacing the current feature test macro with separate feature test macros for views::chunk and views::slide and then send the revised paper to Library Working Group for C++23, classified as an addition ([P0592R4] bucket 3 item).

Unanimous consensus in favor

@JeffGarland Can you confirm that the accepted paper wording matches the poll for the feature macros?

I attended the meeting so I can approve LWG have seen P2442R1, which contains:

• #define __cpp_lib_ranges_chunk 20XXXXL // also in <ranges>
• #define __cpp_lib_ranges_slide 20XXXXL // also in <ranges>

As requested. Still helpful to get @JeffGarland's approval, though. :)

Sure @inbal2l is correct, it has both :)

P2442R1 Windowing range adaptors: views::chunk and views::slide (Tim Song)

Approved by WG21 plenary 2022-02-07