X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fextlib%2FhExtlib.mli;h=0a8921b1b83622298d107c9df1792cfa83a5d1b4;hb=7233348f05485c2ee317df9c3407cf1ce7e56927;hp=dae91447741280aa05331a4ab49d44822048392f;hpb=88381f8e48371c86d29eaeee8354ebfd651ab9e8;p=helm.git

diff --git a/helm/software/components/extlib/hExtlib.mli b/helm/software/components/extlib/hExtlib.mli
index dae914477..0a8921b1b 100644
--- a/helm/software/components/extlib/hExtlib.mli
+++ b/helm/software/components/extlib/hExtlib.mli
@@ -87,10 +87,12 @@ val filter_map: ('a -> 'b option) -> 'a list -> 'b list (** filter + map *)
 val list_rev_map_filter: ('a -> 'b option) -> 'a list -> 'b list
 val list_rev_map_filter_fold: ('c -> 'a -> 'c * 'b option) -> 'c -> 'a list -> 'c * 'b list
 val list_concat: ?sep:'a list -> 'a list list -> 'a list (**String.concat-like*)
-val list_findopt: ('a -> 'b option) -> 'a list -> 'b option
+val list_findopt: ('a -> int -> 'b option) -> 'a list -> 'b option
 val flatten_map: ('a -> 'b list) -> 'a list -> 'b list
 val list_last: 'a list -> 'a
 val list_mapi: ('a -> int -> 'b) -> 'a list -> 'b list
+(* Finds the zero based index of the first element that satisfies a predicate*)
+val list_index: ('a -> bool) -> 'a list -> (int * 'a) option
 val sharing_map: ('a -> 'a) -> 'a list -> 'a list
 (* Iters in parallel on two lists until the first list is empty.
    The second one can be shorter and is padded with a default value.