diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/util.ml | 2 | ||||
| -rw-r--r-- | lib/util.mli | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/lib/util.ml b/lib/util.ml index e1e524cf4a..b96eca3ae3 100644 --- a/lib/util.ml +++ b/lib/util.ml @@ -65,6 +65,8 @@ let stringmap_dom m = Stringmap.fold (fun s _ l -> s::l) m [] (* Lists *) +let list_add_set x l = if List.mem x l then l else x::l + let list_intersect l1 l2 = List.filter (fun x -> List.mem x l2) l1 diff --git a/lib/util.mli b/lib/util.mli index 2060b73758..b26d6a1d7f 100644 --- a/lib/util.mli +++ b/lib/util.mli @@ -41,6 +41,7 @@ val stringmap_dom : 'a Stringmap.t -> string list (*s Lists. *) +val list_add_set : 'a -> 'a list -> 'a list val list_intersect : 'a list -> 'a list -> 'a list val list_union : 'a list -> 'a list -> 'a list val list_unionq : 'a list -> 'a list -> 'a list |