P2389 R2 `dextents` Index Type Parameter

[wg21bot]

P2389R0 dextents Index Type Parameter (Bryce Adelstein Lelbach)

[inbal2l]

2024-03-05 Library Evolution Telecon

P2389R0: dextents Index Type Parameter

2024-03-05 Library Evolution Telecon Minutes

Champion: Mark Hoemmen / Bryce Adelstein Lelbach
Chair: Inbal Levi
Minute Taker: Ben Craig

Summary

POLL: We want to make a breaking change to “dextents” to fix the issue presented in P2389R0

SF	F	N	A	SA
0	8	6	4	1

Attendance: 25
Author's Position: WF
Outcome: No consensus for a change

POLL: Vote once for your preferred name option:

Name	Votes
std::dexts	0
std::dims	11
Please explore a new name (in the reflector)	2

POLL: Forward P2389R1 to LWG for C++26 (which will be P2389R0 modified to add a new facility (std::dims) as suggested, but with the last param as the type defaulted to std::size_t) (to be confirmed with a library evolution electronic poll).

SF	F	N	A	SA
5	8	2	0	0

Attendance: 26
Author's Position: SF
Outcome: Strong consensus in favor

The non-breaking option in the paper was forwarded, with the request to publish an R1 which will:

1. Add a new facility (std::dims)
2. Modify the last param to be the type, defaulted to std::size_t

P2389R1 should be sent to the reflector so that the group can review the modifications, before forwarded to LEWG electronic poll (on April ML).

Next Steps

P2389R1 with the requested changes above should be published.
R1 should be sent to the reflector (for the group to review the modifications). The paper was forwarded for LWG for C++26 (to be confirmed by an LEWG electronic poll). R1 is tentatively scheduled for April EP.

[inbal2l]

P2389R1 was added to 2024 April LEWG electronic poll paper (P3213R0)