StringRef f = from.toNullTerminatedStringRef(from_storage);
StringRef t = to.toNullTerminatedStringRef(to_storage);
- if (::rename(f.begin(), t.begin()) == -1)
- return error_code(errno, system_category());
+ if (::rename(f.begin(), t.begin()) == -1) {
+ // If it's a cross device link, copy then delete, otherwise return the error
+ if (errno == EXDEV) {
+ if (error_code ec = copy_file(from, to, copy_option::overwrite_if_exists))
+ return ec;
+ bool Existed;
+ if (error_code ec = remove(from, Existed))
+ return ec;
+ } else
+ return error_code(errno, system_category());
+ }
return success;
}