File: fact.scm

package info (click to toggle)
scheme48 1.8%2Bdfsg-1%2Bdeb7u1
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 14,984 kB
file content (14 lines) | stat: -rw-r--r-- 254 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
; Copyright (c) 1993-2008 by Richard Kelsey.  See file COPYING.



(define *one* 1)

(define (fact n)
  (let loop ((i n) (r *one*))
    (if (<= *one* i)
	(loop (- i *one*) (* i r))
	r)))

(define (all)
  (set! *one* (fact (if (> (fact 10) 100) 10 20))))