From 191aa5a3a923654d01c35a145a63166a28a2b886 Mon Sep 17 00:00:00 2001
From: delahaye
Date: Wed, 3 Jan 2001 15:55:07 +0000
Subject: Rattrapage d'erreur pour le Case + Eval Compute in pour Definition

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@1232 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 pretyping/pattern.ml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'pretyping/pattern.ml')

diff --git a/pretyping/pattern.ml b/pretyping/pattern.ml
index 4b94fe8b4e..d1566419cc 100644
--- a/pretyping/pattern.ml
+++ b/pretyping/pattern.ml
@@ -181,8 +181,10 @@ let matches_core convert pat c =
 
       | PCase (_,a1,br1), IsMutCase (_,_,a2,br2) ->
 	  (* On ne teste pas le prédicat *)
-	  array_fold_left2 (sorec stk) (sorec stk sigma a1 a2)
-	    br1 br2
+          if (Array.length br1) = (Array.length br2) then
+  	    array_fold_left2 (sorec stk) (sorec stk sigma a1 a2) br1 br2
+          else
+            raise PatternMatchingFailure
       (* À faire *)
       |	PFix f0, IsFix f1 when f0 = f1 -> sigma
       |	PCoFix c0, IsCoFix c1 when c0 = c1 -> sigma
-- 
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