P2930 R0 Formatter specializations for the standard library

[wg21bot]

P2930R0 Formatter specializations for the standard library (Mark de Wever)

[ben-craig]

P2930R0: Formatter specializations for the standard library

P2930R0: Formatter specializations for the standard library

2023-08-22 Library Evolution Telecon Minutes

Champion: Mark de Wever

Chair: Ben Craig

Minute Taker: Inbal Levi

Does this paper have:

• Examples? Yes
• Field experience?
  • Implementation experience? Yes, in libc++
  • Usage experience?
  • Deployment experience?
• Performance considerations?
• Discussion of prior art?
• Changes Library Evolution previously requested?
• Wording?
• Breaking changes?
• Feature test macro?
• Freestanding?
• Format and/or iostream support?
• Hash support?
• Allocator support?

Pros:

Cons:

Open Questions:

Key Insights:

Poll Ideas:

Action Items:

Summary

Requests to add \<atomic>

Requests to add piece wise error condition formatting, similar to chrono

Request showing more specifically what happens with formatter specializations for vector\<bool> and complex, to help LEWG make decisions on the [format.formatter.spec]/2 change.

Next Steps

Come back with a new revision addressing the above items.