module Wcclausenv

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@130 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 13 insertions, 0 deletions

diff --git a/kernel/inductive.ml b/kernel/inductive.ml
index 429d626f1..0154aa7a9 100644
--- a/kernel/inductive.ml
+++ b/kernel/inductive.ml
@@ -50,6 +50,19 @@ let mis_recargs mis =
 let mis_recarg mis = mis.mis_mip.mind_listrec
 let mis_typename mis = mis.mis_mip.mind_typename
 
+let is_recursive listind = 
+  let rec one_is_rec rvec = 
+    List.exists (function
+		   | Mrec(i)        -> List.mem i listind 
+                   | Imbr(_,_,lvec) -> one_is_rec lvec
+                   | Norec          -> false
+                   | Param(_)       -> false) rvec
+  in 
+  array_exists one_is_rec
+
+let mis_is_recursive mis =
+  is_recursive (interval 0 ((mis_ntypes mis)-1)) (mis_recarg mis)
+
 let mind_nth_type_packet mib n = mib.mind_packets.(n)
 
 (*s Declaration. *)