[libcxx-commits] [libcxx] [libc++] Fix UB in filesystem::__copy for non-existent destination. (PR #87615)

[Afanasyev Ivan via libcxx-commits]

ivafanas wrote:

Ping.

Failure depends on posix functions implementation, that's why it isn't visible in regular CI.
We've caught the issue on the already existing tests on specific Linux version.

https://github.com/llvm/llvm-project/pull/87615