[all-commits] [llvm/llvm-project] 4ed8f3: [libc++][pair] P2944R3: Constrain `std::pair`'s eq...

[Hristo Hristov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ed8f38e814d788abc3131c24e7bad96766a52bc
      https://github.com/llvm/llvm-project/commit/4ed8f38e814d788abc3131c24e7bad96766a52bc
  Author: Hristo Hristov <hghristov.rmm at gmail.com>
  Date:   2025-04-29 (Tue, 29 Apr 2025)

  Changed paths:
    M libcxx/docs/Status/Cxx2cPapers.csv
    M libcxx/include/__utility/pair.h
    M libcxx/test/std/utilities/utility/pairs/pairs.spec/comparison.pass.cpp

  Log Message:
  -----------
  [libc++][pair] P2944R3: Constrain `std::pair`'s equality operator (#136672)

Implements https://wg21.link/P2944R3 (partially):
- [pairs.spec](https://eel.is/c++draft/pairs.spec)

Related issues:
- Related to #105424
- Related to #118135
  - PR https://github.com/llvm/llvm-project/pull/135759
  - PR https://github.com/llvm/llvm-project/pull/117664

Closes: [#136763](https://github.com/llvm/llvm-project/issues/136763)

# References
- https://eel.is/c++draft/concept.booleantestable
- https://eel.is/c++draft/concept.equalitycomparable

---------

Co-authored-by: Hristo Hristov <zingam at outlook.com>
Co-authored-by: Nikolas Klauser <nikolasklauser at berlin.de>



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