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add vectro funtion

This commit is contained in:
Yuichi Nishiwaki 2013-11-14 17:58:12 +09:00
parent 4d6c2d99fe
commit 819a2e6a96
1 changed files with 14 additions and 0 deletions
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14
piclib/built-in.scm
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@ -286,6 +286,8 @@
(let ((n (exact (sqrt k)))) (let ((n (exact (sqrt k))))
(values n (- k (square n))))) (values n (- k (square n)))))
;;; 6.3 Booleans
(define (boolean=? . objs) (define (boolean=? . objs)
(define (every pred list) (define (every pred list)
(if (null? list) (if (null? list)
@ -296,6 +298,7 @@
(or (every (lambda (x) (eq? x #t)) objs) (or (every (lambda (x) (eq? x #t)) objs)
(every (lambda (x) (eq? x #f)) objs))) (every (lambda (x) (eq? x #f)) objs)))
;;; 6.5. Symbols
(define (symbol=? . objs) (define (symbol=? . objs)
(define (every pred list) (define (every pred list)
@ -311,3 +314,14 @@
(eq? x sym))) (eq? x sym)))
(cdr objs)) (cdr objs))
#f))) #f)))
;;; 6.8. Vector
(define (vector . objs)
(let ((len (length objs)))
(let ((v (make-vector len)))
(do ((i 0 (+ i 1))
(l objs (cdr l)))
((< i len)
v)
(vector-set! v i (car l))))))