From 9edb2d97d405ef15ca19af9021e664ef72bab5a6 Mon Sep 17 00:00:00 2001
From: herbelin
Date: Sun, 10 Aug 2003 18:50:40 +0000
Subject: Ajout option_fold_right

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@4251 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 lib/util.ml | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/util.ml')

diff --git a/lib/util.ml b/lib/util.ml
index 46ac2e5ceb..d6e160efd7 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -603,6 +603,10 @@ let option_fold_left2 f e a b = match (a,b) with
   | Some x, Some y -> f e x y
   | _ -> e
 
+let option_fold_right f a e = match a with
+  | Some x -> f x e
+  | _ -> e
+
 let option_compare f a b = match (a,b) with
   | None, None -> true
   | Some a', Some b' -> f a' b'
-- 
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