Fcalva/chibi-scheme
1
0
Fork 0
mirror of https://github.com/ashinn/chibi-scheme.git synced 2025-07-08 05:27:35 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixing (byte)vector-copy! for non-zero at.

Browse source
This commit is contained in:
Alex Shinn 2012-11-01 23:05:12 +09:00
parent 72094b760b
commit dd168e5506
1 changed files with 10 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
lib/scheme/extras.scm
View file

@ -152,10 +152,11 @@
(apply for-each proc (map vector->list (cons vec lov)))))
(define (vector-copy! to at from . o)
(let ((start (if (pair? o) (car o) 0))
(end (if (and (pair? o) (pair? (cdr o))) (cadr o) (vector-length from))))
(let* ((start (if (pair? o) (car o) 0))
(end (if (and (pair? o) (pair? (cdr o))) (cadr o) (vector-length from)))
(limit (min end (+ start (- (vector-length to) at)))))
(do ((i at (+ i 1)) (j start (+ j 1)))
((>= j end))
((>= j limit))
(vector-set! to i (vector-ref from j)))))
(define (vector->string vec . o)
@ -165,12 +166,13 @@
(list->vector (apply string->list vec o)))
(define (bytevector-copy! to at from . o)
(let ((start (if (pair? o) (car o) 0))
(end (if (and (pair? o) (pair? (cdr o)))
(cadr o)
(bytevector-length from))))
(let* ((start (if (pair? o) (car o) 0))
(end (if (and (pair? o) (pair? (cdr o)))
(cadr o)
(bytevector-length from)))
(limit (min end (+ start (- (bytevector-length to) at)))))
(do ((i at (+ i 1)) (j start (+ j 1)))
((>= j end))
((>= j limit))
(bytevector-u8-set! to i (bytevector-u8-ref from j)))))
(define (bytevector-copy vec . o)