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(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(*i $Id$ i*)
(* Bounded stacks. If the depth is [None], then there is no depth limit. *)
type 'a t
val create : int option -> 'a t
val set_depth : 'a t -> int option -> unit
val push : 'a t -> 'a -> unit
val app_push : 'a t -> ('a -> 'a) -> unit
val app_repl : 'a t -> ('a -> 'a) -> unit
val pop : 'a t -> 'a option
val top : 'a t -> 'a option
val is_empty : 'a t -> bool
val depth : 'a t -> int
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