P2679 Fixing std::start_lifetime_as for arrays

[wg21bot]

P2679R0 Fixing std::start_lifetime_as for arrays (Timur Doumler, Arthur O'Dwyer, Richard Smith)

[brycelelbach]

2022-11-07 10:00 to 11:30 UTC-10 Kona Library Evolution Meeting

P2679R0: Fixing start_lifetime_as for arrays

2022-11-07 10:00 to 11:30 UTC-10 Kona Library Evolution Minutes

Champion: Timur Doumler (in-person)

Chair: Bryce Adelstein Lelbach & Fabio Fracassi

Minute Taker: Inbal Levi

Start: 2022-11-07 10:52 UTC-10

Does this paper have:

• Examples?
  • Yes.
• Field experience?
  • No.
• Discussion of prior art?
  • Yes.
• Wording?
  • Yes.
• Breaking changes?
  • No, new feature.
• Feature test macro?
  • N/A, new feature.
• Freestanding?
  • No, needs to be done.

For the case of array of a known bound, how do we get the pointer to the array? Do we care about this?

Remove the array of known bounds specializations from P2679R0 (fixing start_lifetime_as for arrays).

End: 11:20

Next Steps

Author will produce a revision based on the feedback received and return later today (2022-11-07 15:15 to 17:00 UTC-10).

[brycelelbach]

2022-11-07 15:15 to 17:00 UTC-10 Kona Library Evolution Meeting

P2679R1: Fixing start_lifetime_as for arrays

2022-11-07 15:15 to 17:00 UTC-10 Kona Library Evolution Minutes

Champion: Timur Doumler (in-person)

Chair: Nevin Liber & Fabio Fracassi

Minute Taker: Steve Downey

POLL: Send D2679R1 (Fixing std::start_lifetime_as for arrays) to CWG & LWG for C++23.

Strongly Favor	Weakly Favor	Neutral	Weakly Against	Strongly Against
10	8	0	0	0

Attendance: 27

# of Authors: 1

Author Position: SF

Outcome: Unanimous consensus in favor.

Next Steps

Library Evolution will take an electronic poll to send D2679R1 (Fixing std::start_lifetime_as for arrays) to CWG & LWG for C++23, classified as B2 - Improvement.