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Implement CCImmutArray.sub, but creates a copy

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SP 2017-11-20 16:14:04 +00:00
parent 3b50617744
commit c49458d923
2 changed files with 7 additions and 0 deletions
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2
src/data/CCImmutArray.ml
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@ -27,6 +27,8 @@ let set a n x =
a'.(n) <- x;
a'
let sub = Array.sub (* Would this not be better implemented with CCArray_slice *)
let map = Array.map
let mapi = Array.mapi

5
src/data/CCImmutArray.mli
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@ -36,6 +36,11 @@ val get : 'a t -> int -> 'a
val set : 'a t -> int -> 'a -> 'a t
(** Copy the array and modify its copy *)
val sub : 'a t -> int -> int -> 'a t
(** [sub a start len] returns a fresh array of length len, containing the elements number start to start + len - 1 of array a.
Raises [Invalid_argument "Array.sub"] if start and len do not designate a valid subarray of a; that is, if start < 0, or len < 0, or start + len > Array.length a. *)
val map : ('a -> 'b) -> 'a t -> 'b t
val mapi : (int -> 'a -> 'b) -> 'a t -> 'b t