6.6.12.7 Accessing Bytevectors with the Array API ¶

As an extension to the R6RS, Guile allows bytevectors to be manipulated with the array procedures (see Arrays). When using these APIs, bytes are accessed one at a time as 8-bit unsigned integers:

(define bv #vu8(0 1 2 3))

(array? bv)
⇒ #t

(array-rank bv)
⇒ 1

(array-ref bv 2)
⇒ 2

;; Note the different argument order on array-set!.
(array-set! bv 77 2)
(array-ref bv 2)
⇒ 77

(array-type bv)
⇒ vu8