[libcxx-commits] [libcxx] [libc++][filesystem] Report an error for canonical("") (PR #215031)

[Yordan Vásquez via libcxx-commits]

vyordan wrote:

> Can we add a test for `weakly_canonical` to ensure that an empty string is accepted?

I found an existing test case that covers what you're asking for:
[weakly_canonical.pass.cpp#L39](https://github.com/llvm/llvm-project/blob/27ba493781215910f560b36cd5b3b2f6c93ec5a3/libcxx/test/std/input.output/filesystems/fs.op.funcs/fs.op.weakly_canonical/weakly_canonical.pass.cpp#L39)

`{"", fs::current_path()},`



https://github.com/llvm/llvm-project/pull/215031