From 8fea90d232c75b23c0bfe1d4b4f136f6a6f5aee8 Mon Sep 17 00:00:00 2001
From: herbelin
Date: Thu, 21 Jul 2005 13:45:23 +0000
Subject: Utilisation de la non-équivalence d'inductifs pour le case_info (cf
 message CP et EC dans coqdev)

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@7250 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 kernel/inductive.ml | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'kernel')

diff --git a/kernel/inductive.ml b/kernel/inductive.ml
index ab2177f75c..e3b152aae7 100644
--- a/kernel/inductive.ml
+++ b/kernel/inductive.ml
@@ -256,6 +256,16 @@ let type_case_branches env (ind,largs) pj c =
 (************************************************************************)
 (* Checking the case annotation is relevent *)
 
+let rec inductive_kn_equiv env kn1 kn2 =
+  match (lookup_mind kn1 env).mind_equiv with
+    | Some kn1' -> inductive_kn_equiv env kn2 kn1'
+    | None -> match (lookup_mind kn2 env).mind_equiv with
+        | Some kn2' -> inductive_kn_equiv env kn2' kn1
+	| None -> false
+
+let inductive_equiv env (kn1,i1) (kn2,i2) =
+  i1=i2 & inductive_kn_equiv env kn1 kn2
+
 let check_case_info env indsp ci =
   let (mib,mip) = lookup_mind_specif env indsp in
   if
-- 
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