[all-commits] [llvm/llvm-project] ca055b: [libc++][format] LWG4061: Should `std::basic_forma...

[A. Jiang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ca055bbec7ed27cb57b95a8f610aa5267fb7c30d
      https://github.com/llvm/llvm-project/commit/ca055bbec7ed27cb57b95a8f610aa5267fb7c30d
  Author: A. Jiang <de34 at live.cn>
  Date:   2024-07-09 (Tue, 09 Jul 2024)

  Changed paths:
    M libcxx/docs/Status/Cxx2cIssues.csv
    M libcxx/include/__format/format_context.h
    M libcxx/test/std/utilities/format/format.formatter/format.context/format.context/ctor.pass.cpp
    M libcxx/test/std/utilities/format/format.functions/bug_81590.compile.pass.cpp

  Log Message:
  -----------
  [libc++][format] LWG4061: Should `std::basic_format_context` be default-constructible/copyable/movable? (#97251)

See [LWG4061](https://cplusplus.github.io/LWG/issue4061) and
[P3341R0](https://wg21.link/p3341r0). Effectively reverts commit
36ce0c3b1e581ca310ae7d0cbc6af002cc5d0251.


`libcxx/test/std/utilities/format/format.functions/bug_81590.compile.pass.cpp`
has a `format` function that unexpectedly takes the
`basic_format_context` by value, which is made ill-formed by LWG4061.
This PR changes the function to take the context by reference.



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