(* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh
 *    Jagannathan, and Stephen Weeks.
 *
 * MLton is released under a BSD-style license.
 * See the file MLton-LICENSE for details.
 *)

functor MonoOption (X: T): T =
struct

type t = X.t option

fun equals (o1, o2) = Option.equals (o1, o2, X.equals)

val layout = Option.layout X.layout

end