From 68986fe0410584c6934c835bb0ee784655f5f8c5 Mon Sep 17 00:00:00 2001 From: Rose Hogenson Date: Tue, 11 Jan 2022 22:01:23 -0800 Subject: Move scheme compiler into a separate directory. --- vec.csc | 54 ------------------------------------------------------ 1 file changed, 54 deletions(-) delete mode 100644 vec.csc (limited to 'vec.csc') diff --git a/vec.csc b/vec.csc deleted file mode 100644 index 03f2b0f..0000000 --- a/vec.csc +++ /dev/null @@ -1,54 +0,0 @@ -(define-library (csc vec) - (export - list->vec - vec - vec->list - vec-append - vec-length - vec-ref - vec?) - (import (scheme base)) - (begin - - - (define-record-type - (make-vec len arr) - vec? - (len vec-length) - (arr vec-arr)) - - - (define (list->vec l) - (let ((arr (list->vector l))) - (make-vec (vector-length arr) arr))) - - - (define (vec->list v) - (vector->list (vec-arr v) 0 (vec-length v))) - - - (define (vec . xs) - (list->vec xs)) - - - (define (vec-append v . xs) - (let ((append-one - (lambda (v x) - (let ((new-v (if (> (vector-length (vec-arr v)) (vec-length v)) - v - (let ((new-arr (make-vector (max 1 (* 2 (vec-length v)))))) - (vector-copy! new-arr 0 (vec-arr v)) - (make-vec (vec-length v) new-arr))))) - (vector-set! (vec-arr new-v) (vec-length new-v) x) - (make-vec (+ 1 (vec-length new-v)) (vec-arr new-v)))))) - (let loop ((v v) - (xs xs)) - (if (null? xs) - v - (loop (append-one v (car xs)) (cdr xs)))))) - - - (define (vec-ref v k) - (if (>= k (vec-length v)) - (error "index out of bounds" k) - (vector-ref (vec-arr v) k))))) -- cgit v1.3.1