(* $Id: infiniteArray.mli,v 1.5 2007/09/10 21:09:37 fpottier Exp $ *)
(** This module implements infinite arrays. **)
type 'a t
(** [make x] creates an infinite array, where every slot contains [x]. **)
val make: 'a -> 'a t
(** [get a i] returns the element contained at offset [i] in the array [a].
Slots are numbered 0 and up. **)
val get: 'a t -> int -> 'a
(** [set a i x] sets the element contained at offset [i] in the array
[a] to [x]. Slots are numbered 0 and up. **)
val set: 'a t -> int -> 'a -> unit
(** [extent a] is the length of an initial segment of the array [a]
that is sufficiently large to contain all [set] operations ever
performed. In other words, all elements beyond that segment have
the default value. *)
val extent: 'a t -> int
(** [domain a] is a fresh copy of an initial segment of the array [a]
whose length is [extent a]. *)
val domain: 'a t -> 'a array