Re: [Haskell-cafe] Function that put elements in Left or Right side of Either depending on type

On 4/03/16 4:04 am, Kristoffer Føllesdal wrote:

I want a function fun :: q -> Either a b where q is of type a or b. fun shall work in the following way

fun x gives Left x if x :: a fun x gives Right x if x :: b

What does "fun 0 :: Either Int Int" do?