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-rw-r--r--clib/cArray.mli2
1 files changed, 2 insertions, 0 deletions
diff --git a/clib/cArray.mli b/clib/cArray.mli
index e65a56d15e..21479d2b45 100644
--- a/clib/cArray.mli
+++ b/clib/cArray.mli
@@ -58,6 +58,8 @@ sig
val fold_left_i : (int -> 'a -> 'b -> 'a) -> 'a -> 'b array -> 'a
val fold_right2 :
('a -> 'b -> 'c -> 'c) -> 'a array -> 'b array -> 'c -> 'c
+ val fold_right3 :
+ ('a -> 'b -> 'c -> 'd -> 'd) -> 'a array -> 'b array -> 'c array -> 'd -> 'd
val fold_left2 :
('a -> 'b -> 'c -> 'a) -> 'a -> 'b array -> 'c array -> 'a
val fold_left3 :