P3366 R1 Remove Deprecated Atomic Initialization API from C++26

[wg21bot]

P3366R0 Remove Deprecated Atomic Initialization API from C++26 (Alisdair Meredith)

[ogiroux]

SG1 in Hagenberg:

Forward P3366R0 to LEWG for C++26
SF F N A SA
2 2 1 0 1
Consensus
SA : it's always a burden to programmers if they have to change code that worked before

[inbal2l]

2025-03-04 Library Evolution Telecon

P3366R0: Remove Deprecated Atomic Initialization API from C++26

2025-03-04 Library Evolution Hagenberg Minutes

Champion: Alisdair Meredith
Chair: Inbal Levi
Minute Taker: Bronek Kozicki

Summary

Paper forwarding

• Why this facility should go into the standard library? Removal of deprecated features
• Examples? Some
  • Field experience?
  • Implementation experience? Yes
  • Usage experience? Some (on specific codebase)
• Deployment experience? Some
• Performance considerations? N/A
• Constexpr? N/A
• Discussion of prior art? Yes
• Changes Library Evolution previously requested? Yes
• Support for "std::format", "hash", and allocators (if required)? N/A
• Wording? Yes
• Feature test macro? N/A
• Freestanding? N/A

POLL: Fix P3366R0 formatting as needed (and other minor fixes needed) and forward to LWG for C++29.

SF	F	N	A	SA
10	8	0	0	0

Attendance: 19
Author's Position: SF
Outcome: Strong consensus in favor

POLL: Fix P3366R0 formatting as needed (and other minor fixes needed) and forward to LWG with recommendation to apply for C++26 (if possible).

SF	F	N	A	SA
8	7	2	0	0

Attendance: 19
Author's Position: F
Outcome: Strong consensus in favor

Next Steps

Forwarded to LWG for 29, but with a recommendation to include the removal in 26 (assuming LWG’s queue cleared).