1 files changed, 7 insertions, 1 deletions
diff --git a/src/tools.ml b/src/tools.ml
index 6dfe564..7f500bf 100755
--- a/src/tools.ml
+++ b/src/tools.ml
@@ -18,6 +18,12 @@ module Option = struct
   | None -> v
   | Some x -> x
 
+  let test f v = begin
+  match f v with
+  | Some x -> x
+  | None -> v
+  end
+
 
 end
 
@@ -97,7 +103,7 @@ module List = struct
   | [] -> raise Not_found
   | hd::tl -> begin match f hd with
               | Some x -> x
-              | None -> (find_map[@tailrec]) f tl
+              | None -> (find_map[@tailcall]) f tl
               end
   end