X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=src%2Fhcons.ml;h=1fc059c636252dc46791f1e81de3b983be9e2453;hb=d9c0e4863807eaf472e875a4bad35cfefe985c95;hp=a820e0845efa5c9c85889d9bb499d3b2b76aaf58;hpb=f5d90fb688bc1a9b29815fc33c369856e6c51a67;p=tatoo.git

diff --git a/src/hcons.ml b/src/hcons.ml
index a820e08..1fc059c 100644
--- a/src/hcons.ml
+++ b/src/hcons.ml
@@ -13,6 +13,10 @@
 (*                                                                     *)
 (***********************************************************************)
 
+(*
+  Time-stamp: <Last modified on 2013-02-06 14:26:22 CET by Kim Nguyen>
+*)
+
 include Sigs.HCONS
 
 module type TableBuilder =
@@ -44,6 +48,7 @@ struct
   let init () =
     T.clear pool;
     uid_make := Uid.make_maker ()
+  let dummy x = { id = Uid.dummy; hash = H.hash x; node = x }
 
   let make x =
     let cell = { id = Uid.dummy; hash = H.hash x; node = x } in
@@ -72,7 +77,7 @@ struct
   let hash v = v
 
   let uid v = Uid.of_int v
-
+  let dummy _ = ~-1
   let equal x y = x == y
 
   let init () = ()