From c03b138c8c5e85ca1636465582c3242f50415a73 Mon Sep 17 00:00:00 2001
From: herbelin
Date: Mon, 9 Oct 2006 15:59:23 +0000
Subject: Ajout combinateurs option_fold_left et name_fold_map

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9225 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 lib/util.ml  | 4 ++++
 lib/util.mli | 1 +
 2 files changed, 5 insertions(+)

(limited to 'lib')

diff --git a/lib/util.ml b/lib/util.ml
index dc25caefee..38eb88ebfa 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -737,6 +737,10 @@ let option_fold_left2 f e a b = match (a,b) with
   | Some x, Some y -> f e x y
   | _ -> e
 
+let option_fold_left f e a = match a with
+  | Some x -> f e x
+  | _ -> e
+
 let option_fold_right f a e = match a with
   | Some x -> f x e
   | _ -> e
diff --git a/lib/util.mli b/lib/util.mli
index 9951aa1c57..f38f36740c 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -209,6 +209,7 @@ val out_some : 'a option -> 'a
 val option_map : ('a -> 'b) -> 'a option -> 'b option
 val option_cons : 'a option -> 'a list -> 'a list
 val option_fold_right : ('a -> 'b -> 'b) -> 'a option -> 'b -> 'b
+val option_fold_left : ('a -> 'b -> 'a) -> 'a -> 'b option -> 'a
 val option_fold_left2 : ('a -> 'b -> 'c -> 'a) -> 'a -> 'b option ->
   'c option -> 'a
 val option_iter : ('a -> unit) -> 'a option -> unit
-- 
cgit v1.2.3