From 18947260e88d96a81429d82642d38f3ee962bb56 Mon Sep 17 00:00:00 2001
From: herbelin
Date: Mon, 14 Oct 2002 08:47:51 +0000
Subject: Ajout optino_iter

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@3136 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 lib/util.ml  | 4 ++++
 lib/util.mli | 1 +
 2 files changed, 5 insertions(+)

diff --git a/lib/util.ml b/lib/util.ml
index 98defb6fd5..689f12558d 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -563,6 +563,10 @@ let option_compare f a b = match (a,b) with
   | Some a', Some b' -> f a' b'
   | _ -> failwith "option_compare"
 
+let option_iter f = function
+  | None -> ()
+  | Some x -> f x
+
 let option_smartmap f a = match a with
   | None -> a
   | Some x -> let x' = f x in if x'==x then a else Some x'
diff --git a/lib/util.mli b/lib/util.mli
index 80b841b2b1..068ea256f5 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -173,6 +173,7 @@ val interval : int -> int -> int list
 val in_some : 'a -> 'a option
 val out_some : 'a option -> 'a
 val option_app : ('a -> 'b) -> 'a option -> 'b option
+val option_iter : ('a -> unit) -> 'a option -> unit
 val option_compare : ('a -> 'b -> bool) -> 'a option -> 'b option -> bool 
 val option_smartmap : ('a -> 'a) -> 'a option -> 'a option
 
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