P3122 R1 [[nodiscard]] should be Recommended Practice

[wg21bot]

P3122R0 [[nodiscard]] should be Recommended Practice (Jonathan Wakely)

[inbal2l]

2024-03-19 Library Evolution Tokyo

P2422R1: [[nodiscard]] should be Recommended Practice

2024-03-19 Library Evolution Tokyo Minutes

Champion: Darius Neațu (R), David Sankel (IP)/Jonathan Wakely (R)/Ville Voutilainen (R)
Chair: Inbal Levi / Robert Lahey
Minute Taker: Steve Downey

Summary

POLL: We support “P3162R0: LEWG [[nodiscard]] policy”

SF	WF	N	WA	SA
3	0	8	13	10

Attendance: 27+ 11

# of Authors: 2

Author Position: SFx2

Outcome: Consensus agains.

POLL: We support “P3122R1: [[nodiscard]] should be Recommended Practice”

SF	WF	N	WA	SA
3	15	5	6	3

Attendance: 27+ 11

# of Authors: 1

Author Position: F

Outcome: Weak consensus in favor

POLL: We prefer not having any [[nodiscard]] in upcoming proposals to the standard, and also avoid recommendations to implementors in the standard

SF	WF	N	WA	SA
21	10	2	1	0

Attendance: 27+ 11

# of Authors: 1

Author Position: SF

Outcome: Consensus in favor (Strongest consensus).

Next Steps

The room voted strongly in favor of the third option, Authors of P3122R1, P2422R0, and P3162R0 will work together to finalize the phrasing of the policy proposed by David and supported by the room (We prefer not having any [[ nodiscard ]] in upcoming proposals to the standard, and also avoid recommendations to implementors in the standard), publish P3122R2 and come back to LEWG for a forwarding vote.

[inbal2l]

Updated revision: P3122R1

[jwakely]

Superseded by P3201R1.