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[helm.git] / helm / software / lambda-delta / lib / cps.ml

diff --git a/helm/software/lambda-delta/lib/cps.ml b/helm/software/lambda-delta/lib/cps.ml
index 3875d88fab91461a4965aceb438f2a73af906c87..75f8bcd37fa330c9ba8ddf1f2a2ad494a9a9b96b 100644 (file)
--- a/helm/software/lambda-delta/lib/cps.ml
+++ b/helm/software/lambda-delta/lib/cps.ml
@@ -9,6 +9,8 @@
      \ /   This software is distributed as is, NO WARRANTY.              
       V_______________________________________________________________ *)
 
+let err () = assert false
+
 let start x = x
 
 let id f x = f x
@@ -63,3 +65,8 @@ let rec list_fold_left2 f map a l1 l2 = match l1, l2 with
       let f a = list_fold_left2 f map a tl1 tl2 in
       map f a hd1 hd2
    | _                      -> assert false
+
+let rec list_mem ?(eq=(=)) a = function
+   | []                   -> false
+   | hd :: _ when eq a hd -> true
+   | _ :: tl              -> list_mem ~eq a tl