simon/ocaml-containers
1
0
Fork 0
mirror of https://github.com/c-cube/ocaml-containers.git synced 2025-12-06 11:15:31 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

feat(BV): add init

Browse source
This commit is contained in:
Simon Cruanes 2022-07-04 22:15:06 -04:00
parent b24feaf2d6
commit e15971934d
No known key found for this signature in database
GPG key ID: EBFFF6F283F3A2B4
2 changed files with 13 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/data/CCBV.ml
View file

@ -67,7 +67,7 @@ let bytes_length_of_size size =
else
div_ size + 1
let create ~size default =
let create ~size default : t =
if size = 0 then
empty ()
else (
@ -210,6 +210,13 @@ let[@inline] set bv i =
(unsafe_get_ bv.b idx_bucket lor (1 lsl idx_in_byte))
)
let init size f : t =
let v = create ~size false in
for i = 0 to size - 1 do
if f i then set v i
done;
v
let[@inline] reset bv i =
if i < 0 then
invalid_arg "reset: negative index"

5
src/data/CCBV.mli
View file

@ -23,6 +23,11 @@ val create : size:int -> bool -> t
(** Create a bitvector of given size, with given default value.
Length of result is [size]. *)
val init : int -> (int -> bool) -> t
(** [init len f] initializes a bitvector of length [len], where bit [i]
is true iff [f i] is.
@since NEXT_RELEASE *)
val copy : t -> t
(** Copy of bitvector. *)