24 maj 2023 kl. 19.27 skrev Joseph Turner : > Would extending `equal' to handle hash tables be generally useful? It would, but doing so would be very risky at this point since it would change long-standing semantics. We could make an augmented version of `equal` but what we really want is one that works for user-defined types (see Ihor's reference to a previous discussion). Anyway, here's an old patch I had lying around, in case we decide that we do need a shoddy equality predicate for hash tables only.