[all-commits] [llvm/llvm-project] 2c79f9: [libc++] Avoid type-punning locale in ios_base (#1...

[Nikolas Klauser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2c79f903048728b41c9399f0f8e822147934e4c1
      https://github.com/llvm/llvm-project/commit/2c79f903048728b41c9399f0f8e822147934e4c1
  Author: Nikolas Klauser <nikolasklauser at berlin.de>
  Date:   2026-04-30 (Thu, 30 Apr 2026)

  Changed paths:
    M libcxx/include/__locale
    M libcxx/include/ios
    M libcxx/src/ios.cpp

  Log Message:
  -----------
  [libc++] Avoid type-punning locale in ios_base (#193507)

While there is currently a comment that all members of `ios_base` must
be scalars, I see no reason that is a correct statement. However, the
only place where this is relevant is `locale __loc_`. This patch
replaces the current `void*` implementation with `union { locale __loc_
}` to simplify `ios.cpp`.



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