Don't guard against overly large key spaces for now.

src/bloom.erl

@@ -63,13 +63,14 @@ is_element(Key, B, [Idx | T]) ->
 
 %% @doc Adds the key to the filter.
 -spec add_element(term(), #bloom{}) -> #bloom{}.
-add_element(Key, #bloom{keys=Keys, n=N, bitmap=Bitmap}=B)
-  when Keys < N ->
+add_element(Key, #bloom{keys=Keys, bitmap=Bitmap}=B) -> %  TODO: when Keys < N
     Idxs = calc_idxs(Key, B),
-    Bitmap0 = set_bits(Bitmap, Idxs),
-    case Bitmap0 == Bitmap of
-         true -> B#bloom{bitmap=Bitmap0}; % Don't increment key count for duplicates.
-        false -> B#bloom{bitmap=Bitmap0, keys=Keys + 1}
+    NewBitmap = set_bits(Bitmap, Idxs),
+    case NewBitmap == Bitmap of
+        true ->
+            B#bloom{bitmap=NewBitmap};
+        false ->
+            B#bloom{bitmap=NewBitmap, keys=Keys + 1}
     end.
 
 %% @internal