[libcxx-commits] [libcxx] Implement P1885R12: `<text_encoding>` header (PR #141312)

[Hristo Hristov via libcxx-commits]

Zingam wrote:

@smallp-o-p I think you might need to implement availability macros for macOS. I've done that just for free functions, so I'm not entirely sure. Look for the `availability` header.

https://github.com/llvm/llvm-project/pull/141312