P4139 R3 Better Name for Better Lookups in P3091

[wg21bot]

P4139R0 Better better lookups (Nathan Myers)

[wg21bot]

P4139R1 Better better lookups (Nathan Myers, Pablo Halpern)

[wg21bot]

P4139R2 Better Name for Better Lookups in P3091 (Nathan Myers, Pablo Halpern)

[inbal2l]

2026-06-10 Library Evolution Brno

P4139R2 Better Name for Better Lookups in P3091

2026-06-10 Minutes

Champion: Pablo
Chair: Andreas / Fabio
Minutes: Elias

Summary

POLL: The lookup functions introduced by P3091 should be renamed from get to lookup.

SF	F	N	A	SA
6	10	2	2	4

Attendance: 28 (IP) + 11 (R)
Author's Position: SF
Outcome: More votes for "lookup"

POLL: The lookup functions introduced by P3091 should be renamed from get to try_lookup.

SF	F	N	A	SA
1	6	7	5	6

Attendance: 28 (IP) + 11 (R)
Author's Position: SF
Outcome: More votes for "lookup"

POLL: The lookup functions introduced by P3091 should be renamed from get to try_at.

SF	F	N	A	SA
7	5	2	9	3

Attendance: 28 (IP) + 11 (R)
Author's Position: X
Outcome: More votes for "lookup"

POLL: lookup vs try_at.
SF - strongly lookup
F - lookup
N - I don’t care
A - try_at
SA - strongly try_at

SF	F	N	A	SA
6	9	2	5	6

Attendance: 28 (IP) + 11 (R)
Author's Position: X
Outcome: More votes for "lookup"

POLL: Forward "P4139R2: Better Name for Better Lookups in P3091" with the name lookup and without the addition of the random access sequence container (section 4.3) to LWG for C++29.

SF	F	N	A	SA
5	12	5	4	2

Attendance: 28 (IP) + 12 (R)
Author's Position: F, SF
Outcome: Consensus in favor.

Next Steps

P4139R2 will be updated to include the name "lookup" and the fixed revision will be forwarded to LWG for C++29.

[jwakely]

#1759 was merged to the working paper including the name proposed by this paper, so this can be closed.