P3094 R6 std::basic_fixed_string

[wg21bot]

P3094R0 std::basic_fixed_string (Mateusz Pusz)

[nliber]

2024-03-20 Library Evolution Incubator Telecon

P2996R7: Reflection for C++26

2024-03-20 Library Evolution Incubator Telecon Minutes

Champion: Mateusz Pusz
Chair: Nevin Liber / Billy Baker
Minute Taker: Luke Valenty

Summary

POLL: We should promise more committee time to pursuing std::basic_fixed_string, knowing that our time is scarce and this will leave less time for other work.

SF	WF	N	WA	SA
11	0	0	0	0

Attendance: 9 + 3

# of Authors: 1

Author Position: SF

Outcome: Unanimous consent

Comments:

POLL: Should the constructor from a string literal be consteval?

SF	WF	N	WA	SA
6	3	2	0	0

Attendance: 9 + 3

# of Authors: 1

Author Position: SF

Outcome: Strong consensus

Comments:

POLL: Do we want to add .view()?

SF	WF	N	WA	SA
3	5	3	0	0

Attendance: 9 + 3

# of Authors: 1

Author Position: WF

Outcome: Consensus

Comments: Should also be in string and string-like types (paper welcome)

POLL: Do we want the .size member to be an integral_constant<size_t, N> (and .empty to be bool_constant<N==0>)?

SF	WF	N	WA	SA
5	2	2	2	0

Attendance: 9 + 3

# of Authors: 1

Author Position: WF

Outcome: Consensus

WA: Consistency with the rest of the standard library; not against providing this with different names

POLL: Should the index operator[] return a reference to const?

SF	WF	N	WA	SA
2	2	3	3	0

Attendance: 9 + 3

# of Authors: 1

Author Position: WA

Outcome: No consensus for change

Comments:

POLL: Should the constructor from a string literal have a precondition that txt[N] == 0?

SF	WF	N	WA	SA
6	1	2	0	2

Attendance: 9 + 3

# of Authors: 1

Author Position: SF

Outcome: Consensus

Comments: We (the room) prefer erroneous behavior for this case, or (even better) ill-formed.

1 SA: it should be well defined if we cannot make it ill-formed.

Next Steps

Make the requested changes and bring the revised paper back to LEWGI.

[wg21bot]

P3094R1 std::basic_fixed_string (Mateusz Pusz)

[wg21bot]

P3094R2 std::basic_fixed_string (Mateusz Pusz)