(************************************************************************)
(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(*   \VV/  **************************************************************)
(*    //   *      This file is distributed under the terms of the       *)
(*         *       GNU Lesser General Public License Version 2.1        *)
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(*i $Id: stamps.mli 5920 2004-07-16 20:01:26Z herbelin $ i*)

(* Time stamps. *)

type 'a timestamped

(* [ts_mod] gives a ['b timestamped] with a new stamp *)
val ts_mod : ('a -> 'b) -> 'a timestamped -> 'b timestamped
val ts_it : 'a timestamped -> 'a
val ts_mk : 'a -> 'a timestamped
val ts_eq : 'a timestamped -> 'a timestamped -> bool
val ts_stamp : 'a timestamped -> int

type 'a idstamped

(* [ids_mod] gives a ['b stamped] with the same stamp *)
val ids_mod : ('a -> 'b) -> 'a idstamped -> 'b idstamped
val ids_it : 'a idstamped -> 'a
val ids_mk : 'a -> 'a idstamped
val ids_eq : 'a idstamped -> 'a idstamped -> bool