Ajout option_fold_left2

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@3258 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/util.mli b/lib/util.mli
index d7194e389d..85ae3f2eb0 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -174,6 +174,8 @@ 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_fold_left2 : 
+  ('a -> 'b -> 'c -> 'a) -> 'a -> 'b option -> 'c option -> 'a
 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