LEWG in Kona:
Add find_last which allows ForwardIterator (and an overload with Sentinel for the last), drop find_backward, forward to LWG for C++20.
SF F N A SA
5 3 5 2 1

P1223R2 find_backward (Zach Laine)

Discussed in small group on Tuesday in Cologne

This was not adopted for C++20. Removing the "C++20" label.

This was reviewed in Saturday afternoon small group in Prague (notes on wiki). Feedback provided to the author with some revisions needed.

LWG reviewed 2020-12-11

https://wiki.edg.com/bin/view/Wg21fall2020/P1223-2020-12-11

After some discussion author agreed to update paper and return to LEWG to include the end of range in the return type on the principle of not discarding potentially useful information.

We recommend LEWG change the return type to include the end of the range.
SF F N A SA
1 4 1 0 0
Participants: 6

P1223R3 find_last (Zach Laine)

2022-04-11 SG9 (Ranges)

P1223R3: find_last

2022-04-11 SG9 (Ranges)

Chair: Inbal Levi

Champion: Jeff Garland

Minute Taker: Dietmar Kühl

Polls

Poll: We recommend making the change proposed in section 0.3 of P1223R3 for find_last, (making find_last returning a subrange) for C++23.

Outcome: Weak consensus in favor

Chair Note: There are a lot of Neutrals, but I think the 5 for vs. 1 against signals a weak consensus in favor. We should get LEWG's opinion anyhow

Summary

The paper was sent back from LWG to get SG9's input. The author supports the change on section 0.3 of R3, whether LWG and SG's opinions vary on this matter.

SG9's recommendation was to move forward with the change, (5F to 1A) but the vote had a large number of Neutrals. The topic will be reviewed in an LEWG ML.

Outcome

The topic of weather to move forward with the change is scheduled for LEWG ML review (starting on April 11th, 2022), with a weak recommendation by SG9 to accept the change proposed on R3 of the paper.

LWG sent the paper back to LEWG (and SG9 first) to review a change in return types came up in LWG (suggested change appears in R3 section 0.3).
Discussed in an LEWG mailing list review: 2022-04-12
Review closed with a recommendation to move forward with the change (for C++23, to be approved with an electronic poll).

P1223R4 find_last (Zach Laine)

2022-05 Library Evolution Electronic Poll Outcomes

POLL: Return [P1223R3] find_last to Library Working Group for C++23, classified as an addition ([P0592R4] bucket 3 item).

Consensus in favor.

P1223R5 find_last (Zach Laine)

LWG reviewed and approved for C++23 on 2022-06-17

https://wiki.edg.com/bin/view/Wg21telecons2022/P1223-20220617

poll: put P1223r5 into C++23

(10 participants)