P3697 R1 Minor additions to C++26 standard library hardening

[wg21bot]

P3697R0 Minor additions to C++26 standard library hardening (Konstantin Varlamov, Louis Dionne, Alisdair Meredith)

[Eisenwave]

LWG4276 could be merged into this paper.

[inbal2l]

2025-06-16 LEWG Sofia Meeting

P3697R0: Minor additions to C++26 standard library hardening

2025-06-16 Library Evolution Sofia Minutes

Champion: Konstantin Varlamov
Chair: Fabio Fracassi / Inbal Levi
Minute Taker: Bronek Kozicki

Summary

ACTION ITEM: in counted.iter.const §1 add “is true”

POLL: Forward “P3697R0: Minor additions to C++26 standard library hardening” with the action items above to LWG for C++29 (with a recommendation to make it a DR for C++26).

SF	F	N	A	SA
13	9	1	0	0

Attendance: 20 (IP) + 5 (R)
Author's Position: SF
Outcome: Strong consensus in favor

POLL: Forward “P3697R0: Minor additions to C++26 standard library hardening” with the action items above to LWG with a recommendation to apply for C++26 (if possible).

SF	F	N	A	SA
14	6	2	0	0

Attendance: 20 (IP) + 5 (R)
Author's Position: SF
Outcome: Strong consensus in favor

Next Steps

“P3697R0: Minor additions to C++26 standard library hardening” was forwarded to LWG for C++29 (and recommendation to make a DR), and for C++ 26 (if possible).