X-Git-Url: http://git.nguyen.vg/gitweb/?p=tatoo.git;a=blobdiff_plain;f=src%2Futils%2Fuid.ml;fp=src%2Futils%2Fuid.ml;h=0cb9688b419ae2d3a33b797ee33855d90c8e9438;hp=0000000000000000000000000000000000000000;hb=30bc0bb1291426e5e26eb2dee1ffc41e4c246349;hpb=d9c0e4863807eaf472e875a4bad35cfefe985c95

diff --git a/src/utils/uid.ml b/src/utils/uid.ml
new file mode 100644
index 0000000..0cb9688
--- /dev/null
+++ b/src/utils/uid.ml
@@ -0,0 +1,33 @@
+(***********************************************************************)
+(*                                                                     *)
+(*                               TAToo                                 *)
+(*                                                                     *)
+(*                     Kim Nguyen, LRI UMR8623                         *)
+(*                   Université Paris-Sud & CNRS                       *)
+(*                                                                     *)
+(*  Copyright 2010-2012 Université Paris-Sud and Centre National de la *)
+(*  Recherche Scientifique. All rights reserved.  This file is         *)
+(*  distributed under the terms of the GNU Lesser General Public       *)
+(*  License, with the special exception on linking described in file   *)
+(*  ../LICENSE.                                                        *)
+(*                                                                     *)
+(***********************************************************************)
+
+(*
+  Time-stamp: <Last modified on 2013-01-30 19:06:39 CET by Kim Nguyen>
+*)
+
+type t = int
+
+exception Overflow
+let make_maker () =
+  let _id = ref ~-1 in
+    fun () ->
+      incr _id;
+      let i = !_id in
+      if i < 0 then raise Overflow else i
+
+let dummy = -1
+
+external to_int : t -> int = "%identity"
+external of_int : int -> t= "%identity"