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Zeta611/z_combinator.ml

Created August 9, 2022 12:55
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[Fixed-point combinator in OCaml] Fixed-point combinator (Z combinator) in OCaml. Y combinator is not available, as OCaml is a strict language. #demo
Raw
z_combinator.ml
type 'a fix = Fix of ('a fix -> 'a)
let fix f =
(fun (Fix x as fix) -> f (fun z -> x fix z))
(Fix (fun (Fix x as fix) -> f (fun z -> x fix z)))
let factorial = fix @@ fun f n -> if n <= 0 then 1 else n * f (n - 1)
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