.

[SXSI/xpathcomp.git] / hlist.mli

diff --git a/hlist.mli b/hlist.mli
index 15bafe5..7796833 100644 (file)
--- a/hlist.mli
+++ b/hlist.mli
@@ -15,6 +15,7 @@ module type S = sig
   val iter : (elt -> 'a) -> t -> unit
   val rev : t -> t
   val rev_map : (elt -> elt) -> t -> t
+  val length : t -> int
 end
 
 module Make (H : Hcons.S) : S with type elt = H.t