Nguyễn Thái Ngọc Duy schrieb:

+int offset_1st_component(const char *path)
+{
+	if (has_dos_drive_prefix(path))
+		return 2 + (path[2] == '/');
+	return *path == '/';
+}

I'd have expected that you future-proofed this function by using 
is_dir_sep() or even use your previous implementation of is_root_path 
(because this implementation is a bit cryptic).

But if the new callers of this function will only pass the results of 
normalize_path_copy() and getcwd() (both return only forward-slashes on 
Windows), then I'm fine with this version. Do they?

-- Hannes