8.12
4.4 Vectors
| (require rebellion/collection/vector) | package: rebellion |
procedure
(mutable-vector? v) → boolean?
v : any/c
A predicate for mutable vectors. Implies vector?.
procedure
(into-vector [#:size size]) → (reducer/c any/c immutable-vector?)
size : (or/c natural? +inf.0) = +inf.0
Constructs a reducer that collects at most size elements of a
sequence into an immutable vector.
Example:
> (transduce (in-naturals) (filtering odd?) #:into (into-vector #:size 5)) '#(1 3 5 7 9)
procedure
(into-mutable-vector [#:size size])
→ (reducer/c any/c mutable-vector?) size : (or/c natural? +inf.0) = +inf.0
Constructs a reducer that collects at most size elements of a
sequence into a mutable vector.
Example:
> (transduce (in-naturals) (filtering even?) #:into (into-mutable-vector #:size 5)) '#(0 2 4 6 8)
procedure
(sequence->vector seq) → immutable-vector?
seq : (sequence/c any/c)
Copies seq into an immutable vector. If seq is already an
immutable vector, it is returned directly.
Examples:
> (sequence->vector (list 1 2 3)) '#(1 2 3)
> (sequence->vector (in-range 0 10)) '#(0 1 2 3 4 5 6 7 8 9)