X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=hlist.mli;h=7796833a201b1a6f7330a2308c82e1c76d8a5d52;hb=f0557f21878be17ddc75b1bc8f4f86da68c8e604;hp=15bafe550f96a1e73a937f14c598d49669423882;hpb=479afaf5e67e28ef73c0126e95ca8badec3392aa;p=SXSI%2Fxpathcomp.git

diff --git a/hlist.mli b/hlist.mli
index 15bafe5..7796833 100644
--- 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