sirStack.mli

module type Stack =
sig
  type 'a t
  exception Empty
  val create : unit -> 'a t
  val push : 'a -> 'a t -> unit
  val pop : 'a t -> 'a
  val top : 'a t -> 'a
  val clear : 'a t -> unit
  val copy : 'a t -> 'a t
  val is_empty : 'a t -> bool
  val length : 'a t -> int
  val iter : ('a -> unit) -> 'a t -> unit
end;;