1(**************************************************************************)
2(*                                                                        *)
3(*                                 OCaml                                  *)
4(*                                                                        *)
5(*                       Pierre Chambart, OCamlPro                        *)
6(*           Mark Shinwell and Leo White, Jane Street Europe              *)
7(*                                                                        *)
8(*   Copyright 2013--2016 OCamlPro SAS                                    *)
9(*   Copyright 2014--2016 Jane Street Group LLC                           *)
10(*                                                                        *)
11(*   All rights reserved.  This file is distributed under the terms of    *)
12(*   the GNU Lesser General Public License version 2.1, with the          *)
13(*   special exception on linking described in the file LICENSE.          *)
14(*                                                                        *)
15(**************************************************************************)
16
17[@@@ocaml.warning "+a-4-9-30-40-41-42"]
18
19type t = int
20
21include Identifiable.Make (Numbers.Int)
22
23let create_exn tag =
24  if tag < 0 || tag > 255 then
25    Misc.fatal_error (Printf.sprintf "Tag.create_exn %d" tag)
26  else
27    tag
28
29let to_int t = t
30
31let zero = 0
32let object_tag = Obj.object_tag
33