haskelldb – Tarik Billa

How do I create an operator in Haskell?

December 22, 2023 by Tarik

Just add parentheses around your operator: (<=>) :: Ternary -> Ternary -> Ternary (<=>) T F = F (<=>) T T = T (<=>) T M = M (<=>) F F = T (<=>) F T = F (<=>) F M = M (<=>) M F = M (<=>) M T = M (<=>) M … Read more

How can I use HaskellDB with polymorphic fields? (Problems with overlapping instances)

May 13, 2023 by Tarik

With the age of this question, it is probably too late of an answer to make any difference to you, but maybe if some other person comes along with a similar problem… It comes down to the fact that it cannot be inferred that you want entity to refer to Book when branch is used … Read more