1 (* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh
2 * Jagannathan, and Stephen Weeks.
4 * MLton is released under a BSD-style license.
5 * See the file MLton-LICENSE for details.
13 val := : 'a t * 'a -> unit
15 val clear: 'a t -> unit
16 val copy: 'a t * 'a t -> unit
17 val eq: 'a t * 'a t -> bool
18 val equals: 'a t * 'a t * ('a * 'a -> bool) -> bool
19 val follow: 'a t -> 'a option
20 val isNull: 'a t -> bool
21 val make: 'a option -> 'a t
22 val null: unit -> 'a t
24 val swap: 'a t * 'a t -> unit