P3104 R4 Bit permutations

[wg21bot]

P3104R0 Bit permutations (Jan Schultke)

[billy-baker]

2024-03-18 Library Evolution Incubator Tokyo Meeting

P3104R0: Bit permutations

2024-03-18 Library Evolution Incubator Minutes

Champion: Jan Schultke
Chair: Billy Baker
Minute Taker: Luke Valenty

Summary

Does this paper have:

• Why this facility should go into the standard library?
• Examples? Yes
• Field experience?
  • Implementation experience?
  • Usage experience?
  • Deployment experience?
• Performance considerations?
• Discussion of prior art?
• Changes Library Evolution previously requested?
• Support for "std::format", "hash", and allocators (if required)? N/A
• Wording? Yes
• Feature test macro? Yes
• Freestanding? No

The additions were well-received with the exception of the *_bit_permutation functions. Removal of the *_bit_permutation functions was viewed as improving consensus. A future paper can propose the *_bit_permutation functions with additional comparison information related to the existing std::next_permutation and std::prev_permutation.

Next Steps

A revised paper is needed that removes the *_bit_permutation functions.

[wg21bot]

P3104R1 Bit permutations (Jan Schultke)

[wg21bot]

P3104R2 Bit permutations (Jan Schultke)