Noise for nothing

Util only depends on Ocaml stdlib and Utf8 tables.
Generic pretty printing and loc functions are in Pp.
Generic errors are in Errors.

+ Training white-spaces, useless open, prlist copies random erasure.
Too many "open Errors" on the contrary.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15020 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/option.ml b/lib/option.ml
index c3fe9ce46..ef7a2e9e5 100644
--- a/lib/option.ml
+++ b/lib/option.ml
@@ -153,6 +153,13 @@ module List =
   let rec flatten = function
     | x::l -> cons x (flatten l)
     | [] -> []
+
+  let rec find f = function
+    |[] -> None
+    |h :: t -> match f h with
+	 |None -> find f t
+	 |x -> x
+
 end