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(**************************************************************************)
(*                                                                        *)
(*                                 OCaml                                  *)
(*                                                                        *)
(*             Xavier Leroy, projet Cristal, INRIA Rocquencourt           *)
(*                                                                        *)
(*   Copyright 1996 Institut National de Recherche en Informatique et     *)
(*     en Automatique.                                                    *)
(*                                                                        *)
(*   All rights reserved.  This file is distributed under the terms of    *)
(*   the GNU Lesser General Public License version 2.1, with the          *)
(*   special exception on linking described in the file LICENSE.          *)
(*                                                                        *)
(**************************************************************************)

(* Association tables from any ordered type to any type.
   We use the generic ordering to compare keys. *)

type ('a, 'b) t

val empty: ('a, 'b) t
val add: 'a -> 'b -> ('a, 'b) t -> ('a, 'b) t
val find: 'a -> ('a, 'b) t -> 'b
val mem: 'a -> ('a, 'b) t -> bool
val remove: 'a -> ('a,  'b) t -> ('a, 'b) t
val iter: ('a -> 'b -> unit) -> ('a, 'b) t -> unit
val map: ('a -> 'b -> 'c) -> ('a, 'b) t -> ('a, 'c) t
val fold: ('a -> 'b -> 'c -> 'c) -> ('a, 'b) t -> 'c -> 'c

open Format

val print: (formatter -> 'a -> unit) -> (formatter -> 'b -> unit) ->
           formatter -> ('a, 'b) t -> unit