From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Sun, 18 May 2008 07:25:38 +0000 (+0000)
Subject: More effective optimization: avoid introducing already implied arcs.
X-Git-Tag: make_still_working~5177
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;ds=sidebyside;h=c5699e75abae51b39365c3dfab2fde3f4b23fe6b;p=helm.git

More effective optimization: avoid introducing already implied arcs.
---

diff --git a/helm/software/components/ng_kernel/nCicEnvironment.ml b/helm/software/components/ng_kernel/nCicEnvironment.ml
index 8f76f4a0f..fa229d6f6 100644
--- a/helm/software/components/ng_kernel/nCicEnvironment.ml
+++ b/helm/software/components/ng_kernel/nCicEnvironment.ml
@@ -43,7 +43,7 @@ let universe_eq a b = universe_leq b a || universe_leq a b
 let add_le_constraint strict a b = 
   match a,b with
   | [false,a2],[false,b2] -> 
-      if not (NUri.eq a2 b2) then (
+      if not (le_path_uri [] strict a2 b2) then (
         if le_path_uri [] (not strict) b2 a2 then
          (raise (BadConstraint (lazy "universe inconsistency")));
         le_constraints := (strict,a2,b2) :: !le_constraints)