[libcxx-commits] [libcxx] [libc++] Make std::filesystem::canonical throw when given empty path (PR #77223)

[Mark de Wever via libcxx-commits]

================
@@ -82,6 +82,8 @@ path __canonical(path const& orig_p, error_code* ec) {
   path cwd;
   ErrorHandler<path> err("canonical", ec, &orig_p, &cwd);
 
+  if (orig_p.empty())
+    return err.report(capture_errno());
----------------
mordante wrote:

Since they are all related to the same root cause I don't mind to have these changes in one PR.

Take the time you need.

https://github.com/llvm/llvm-project/pull/77223