X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fng_paramodulation%2FnCicBlob.ml;h=be5158452065511f0169d3c9f7b2b38b36e9ba82;hb=578ba04e1a0812f538729fbc02ea38d2cfd0ed3e;hp=b9314a20317203d127413454acc13727d7c8616a;hpb=894d518aa760c9f816ddb0dc2b3fa88e1fe20a94;p=helm.git

diff --git a/matita/components/ng_paramodulation/nCicBlob.ml b/matita/components/ng_paramodulation/nCicBlob.ml
index b9314a203..be5158452 100644
--- a/matita/components/ng_paramodulation/nCicBlob.ml
+++ b/matita/components/ng_paramodulation/nCicBlob.ml
@@ -45,19 +45,26 @@ with type t = NCic.term and type input = NCic.term = struct
 
   type t = NCic.term
 
-  let eq x y = x = y;;
-    (* NCicReduction.alpha_eq C.metasenv C.subst C.context x y;; *)
+  let eq x y =
+   (* CSC: NCicPp.status is the best I can put here *)
+   x = y ||
+   NCicReduction.alpha_eq (new NCicPp.status) C.metasenv C.subst C.context x y;;
 
   let height_of_ref = function
     | NReference.Def h -> h
     | NReference.Fix(_,_,h) -> h
     | _ -> 0
 
+external old_hash_param :
+  int -> int -> 'a -> int = "caml_hash_univ_param" "noalloc";;
+
+let old_hash = old_hash_param 10 100;;
+
   let compare_refs (NReference.Ref (u1,r1)) (NReference.Ref (u2,r2)) =
     let x = height_of_ref r2 - height_of_ref r1 in
       if x = 0 then 
-	Hashtbl.hash (NUri.string_of_uri u1,r1) - 
-	  Hashtbl.hash (NUri.string_of_uri u2,r2)
+	old_hash (NUri.string_of_uri u1,r1) - 
+	  old_hash (NUri.string_of_uri u2,r2)
       else x 
 
   let rec compare x y = 
@@ -79,9 +86,7 @@ with type t = NCic.term and type input = NCic.term = struct
   ;;
   
   let compare x y = 
-    (* CSC: NCicPp.status is the best I can put here *)
-    if NCicReduction.alpha_eq (new NCicPp.status) [] [] [] x y  then 0 
-    (* if x = y  then 0 *)
+    if eq x y then 0
     else compare x y
   ;;