[libcxx-commits] [libcxx] [libc++] Deprecates std::errc constants. (PR #80542)

[Mark de Wever via libcxx-commits]

mordante wrote:

Fair point the message could have been clearer. What do you mean with an opt out? This is a deprecation that we like people to fix, I expect there will be a removal which will be retroactively applied. (Note this is a change by POSIX and C++ follows its lead.)

https://github.com/llvm/llvm-project/pull/80542