[uim-commit] r1186 - branches/r5rs/sigscheme/test
kzk at freedesktop.org
kzk at freedesktop.org
Fri Aug 12 03:28:02 EST 2005
Author: kzk
Date: 2005-08-11 10:28:00 -0700 (Thu, 11 Aug 2005)
New Revision: 1186
Added:
branches/r5rs/sigscheme/test/test-r4rs.scm
Log:
* test/test-r4rs.scm
- add testfile for r4rs compatibility.
this file is imported from scm.
Added: branches/r5rs/sigscheme/test/test-r4rs.scm
===================================================================
--- branches/r5rs/sigscheme/test/test-r4rs.scm 2005-08-11 16:47:28 UTC (rev 1185)
+++ branches/r5rs/sigscheme/test/test-r4rs.scm 2005-08-11 17:28:00 UTC (rev 1186)
@@ -0,0 +1,1233 @@
+;; Copyright (C) 1991, 1992, 1993, 1994, 1995, 2000, 2003 Free Software Foundation, Inc.
+;;
+;; This program is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by the
+;; Free Software Foundation; either version 2, or (at your option) any
+;; later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+;;
+;; To receive a copy of the GNU General Public License, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA; or view
+;; http://swissnet.ai.mit.edu/~jaffer/GPL.html
+
+;;;; "r4rstest.scm" Test correctness of scheme implementations.
+;;; Author: Aubrey Jaffer
+
+;;; This includes examples from
+;;; William Clinger and Jonathan Rees, editors.
+;;; Revised^4 Report on the Algorithmic Language Scheme
+;;; and the IEEE specification.
+
+;;; The input tests read this file expecting it to be named "r4rstest.scm".
+;;; Files `tmp1', `tmp2' and `tmp3' will be created in the course of running
+;;; these tests. You may need to delete them in order to run
+;;; "r4rstest.scm" more than once.
+
+;;; There are three optional tests:
+;;; (TEST-CONT) tests multiple returns from call-with-current-continuation
+;;;
+;;; (TEST-SC4) tests procedures required by R4RS but not by IEEE
+;;;
+;;; (TEST-DELAY) tests DELAY and FORCE, which are not required by
+;;; either standard.
+
+;;; If you are testing a R3RS version which does not have `list?' do:
+;;; (define list? #f)
+
+;;; send corrections or additions to agj @ alum.mit.edu
+
+(define cur-section '())(define errs '())
+(define SECTION (lambda args
+ (display "SECTION") (write args) (newline)
+ (set! cur-section args) #t))
+(define record-error (lambda (e) (set! errs (cons (list cur-section e) errs))))
+
+(define test
+ (lambda (expect fun . args)
+ (write (cons fun args))
+ (display " ==> ")
+ ((lambda (res)
+ (write res)
+ (newline)
+ (cond ((not (equal? expect res))
+ (record-error (list res expect (cons fun args)))
+ (display " BUT EXPECTED ")
+ (write expect)
+ (newline)
+ #f)
+ (else #t)))
+ (if (procedure? fun) (apply fun args) (car args)))))
+(define (report-errs)
+ (newline)
+ (if (null? errs) (display "Passed all tests")
+ (begin
+ (display "errors were:")
+ (newline)
+ (display "(SECTION (got expected (call)))")
+ (newline)
+ (for-each (lambda (l) (write l) (newline))
+ errs)))
+ (newline))
+
+(SECTION 2 1);; test that all symbol characters are supported.
+'(+ - ... !.. $.+ %.- &.! *.: /:. :+. <-. =. >. ?. ~. _. ^.)
+
+(SECTION 3 4)
+(define disjoint-type-functions
+ (list boolean? char? null? number? pair? procedure? string? symbol? vector?))
+(define type-examples
+ (list
+ #t #f #\a '() 9739 '(test) record-error "test" "" 'test '#() '#(a b c) ))
+(define i 1)
+(for-each (lambda (x) (display (make-string i #\ ))
+ (set! i (+ 3 i))
+ (write x)
+ (newline))
+ disjoint-type-functions)
+(define type-matrix
+ (map (lambda (x)
+ (let ((t (map (lambda (f) (f x)) disjoint-type-functions)))
+ (write t)
+ (write x)
+ (newline)
+ t))
+ type-examples))
+(set! i 0)
+(define j 0)
+(for-each (lambda (x y)
+ (set! j (+ 1 j))
+ (set! i 0)
+ (for-each (lambda (f)
+ (set! i (+ 1 i))
+ (cond ((and (= i j))
+ (cond ((not (f x)) (test #t f x))))
+ ((f x) (test #f f x)))
+ (cond ((and (= i j))
+ (cond ((not (f y)) (test #t f y))))
+ ((f y) (test #f f y))))
+ disjoint-type-functions))
+ (list #t #\a '() 9739 '(test) record-error "test" 'car '#(a b c))
+ (list #f #\newline '() -3252 '(t . t) car "" 'nil '#()))
+(SECTION 4 1 2)
+(test '(quote a) 'quote (quote 'a))
+(test '(quote a) 'quote ''a)
+(SECTION 4 1 3)
+(test 12 (if #f + *) 3 4)
+(SECTION 4 1 4)
+(test 8 (lambda (x) (+ x x)) 4)
+(define reverse-subtract
+ (lambda (x y) (- y x)))
+(test 3 reverse-subtract 7 10)
+(define add4
+ (let ((x 4))
+ (lambda (y) (+ x y))))
+(test 10 add4 6)
+(test '(3 4 5 6) (lambda x x) 3 4 5 6)
+(test '(5 6) (lambda (x y . z) z) 3 4 5 6)
+(SECTION 4 1 5)
+(test 'yes 'if (if (> 3 2) 'yes 'no))
+(test 'no 'if (if (> 2 3) 'yes 'no))
+(test '1 'if (if (> 3 2) (- 3 2) (+ 3 2)))
+(SECTION 4 1 6)
+(define x 2)
+(test 3 'define (+ x 1))
+(set! x 4)
+(test 5 'set! (+ x 1))
+(SECTION 4 2 1)
+(test 'greater 'cond (cond ((> 3 2) 'greater)
+ ((< 3 2) 'less)))
+(test 'equal 'cond (cond ((> 3 3) 'greater)
+ ((< 3 3) 'less)
+ (else 'equal)))
+(test 2 'cond (cond ((assv 'b '((a 1) (b 2))) => cadr)
+ (else #f)))
+(test 'composite 'case (case (* 2 3)
+ ((2 3 5 7) 'prime)
+ ((1 4 6 8 9) 'composite)))
+(test 'consonant 'case (case (car '(c d))
+ ((a e i o u) 'vowel)
+ ((w y) 'semivowel)
+ (else 'consonant)))
+(test #t 'and (and (= 2 2) (> 2 1)))
+(test #f 'and (and (= 2 2) (< 2 1)))
+(test '(f g) 'and (and 1 2 'c '(f g)))
+(test #t 'and (and))
+(test #t 'or (or (= 2 2) (> 2 1)))
+(test #t 'or (or (= 2 2) (< 2 1)))
+(test #f 'or (or #f #f #f))
+(test #f 'or (or))
+(test '(b c) 'or (or (memq 'b '(a b c)) (+ 3 0)))
+(SECTION 4 2 2)
+(test 6 'let (let ((x 2) (y 3)) (* x y)))
+(test 35 'let (let ((x 2) (y 3)) (let ((x 7) (z (+ x y))) (* z x))))
+(test 70 'let* (let ((x 2) (y 3)) (let* ((x 7) (z (+ x y))) (* z x))))
+(test #t 'letrec (letrec ((even?
+ (lambda (n) (if (zero? n) #t (odd? (- n 1)))))
+ (odd?
+ (lambda (n) (if (zero? n) #f (even? (- n 1))))))
+ (even? 88)))
+(print "fefefe")
+(define x 34)
+(test 5 'let (let ((x 3)) (define x 5) x))
+(test 34 'let x)
+(test 6 'let (let () (define x 6) x))
+(test 34 'let x)
+(test 7 'let* (let* ((x 3)) (define x 7) x))
+(test 34 'let* x)
+(test 8 'let* (let* () (define x 8) x))
+(test 34 'let* x)
+(test 9 'letrec (letrec () (define x 9) x))
+(test 34 'letrec x)
+(test 10 'letrec (letrec ((x 3)) (define x 10) x))
+(test 34 'letrec x)
+(define (s x) (if x (let () (set! s x) (set! x s))))
+(SECTION 4 2 3)
+(define x 0)
+(test 6 'begin (begin (set! x (begin (begin 5)))
+ (begin ((begin +) (begin x) (begin (begin 1))))))
+(SECTION 4 2 4)
+(test '#(0 1 2 3 4) 'do (do ((vec (make-vector 5))
+ (i 0 (+ i 1)))
+ ((= i 5) vec)
+ (vector-set! vec i i)))
+(test 25 'do (let ((x '(1 3 5 7 9)))
+ (do ((x x (cdr x))
+ (sum 0 (+ sum (car x))))
+ ((null? x) sum))))
+(test 1 'let (let foo () 1))
+(test '((6 1 3) (-5 -2)) 'let
+ (let loop ((numbers '(3 -2 1 6 -5))
+ (nonneg '())
+ (neg '()))
+ (cond ((null? numbers) (list nonneg neg))
+ ((negative? (car numbers))
+ (loop (cdr numbers)
+ nonneg
+ (cons (car numbers) neg)))
+ (else
+ (loop (cdr numbers)
+ (cons (car numbers) nonneg)
+ neg)))))
+;;From: Allegro Petrofsky <Allegro at Petrofsky.Berkeley.CA.US>
+(test -1 'let (let ((f -)) (let f ((n (f 1))) n)))
+
+(SECTION 4 2 6)
+(test '(list 3 4) 'quasiquote `(list ,(+ 1 2) 4))
+(test '(list a (quote a)) 'quasiquote (let ((name 'a)) `(list ,name ',name)))
+(test '(a 3 4 5 6 b) 'quasiquote `(a ,(+ 1 2) ,@(map abs '(4 -5 6)) b))
+(test '((foo 7) . cons)
+ 'quasiquote
+ `((foo ,(- 10 3)) ,@(cdr '(c)) . ,(car '(cons))))
+
+;;; sqt is defined here because not all implementations are required to
+;;; support it.
+(define (sqt x)
+ (do ((i 0 (+ i 1)))
+ ((> (* i i) x) (- i 1))))
+
+(test '#(10 5 2 4 3 8) 'quasiquote `#(10 5 ,(sqt 4) ,@(map sqt '(16 9)) 8))
+(test 5 'quasiquote `,(+ 2 3))
+(test '(a `(b ,(+ 1 2) ,(foo 4 d) e) f)
+ 'quasiquote `(a `(b ,(+ 1 2) ,(foo ,(+ 1 3) d) e) f))
+(test '(a `(b ,x ,'y d) e) 'quasiquote
+ (let ((name1 'x) (name2 'y)) `(a `(b ,,name1 ,',name2 d) e)))
+(test '(list 3 4) 'quasiquote (quasiquote (list (unquote (+ 1 2)) 4)))
+(test '`(list ,(+ 1 2) 4) 'quasiquote '(quasiquote (list (unquote (+ 1 2)) 4)))
+(SECTION 5 2 1)
+(define add3 (lambda (x) (+ x 3)))
+(test 6 'define (add3 3))
+(define first car)
+(test 1 'define (first '(1 2)))
+(define old-+ +)
+(begin (begin (begin)
+ (begin (begin (begin) (define + (lambda (x y) (list y x)))
+ (begin)))
+ (begin))
+ (begin)
+ (begin (begin (begin) (test '(3 6) add3 6)
+ (begin))))
+(set! + old-+)
+(test 9 add3 6)
+(begin)
+(begin (begin))
+(begin (begin (begin (begin))))
+(SECTION 5 2 2)
+(test 45 'define
+ (let ((x 5))
+ (begin (begin (begin)
+ (begin (begin (begin) (define foo (lambda (y) (bar x y)))
+ (begin)))
+ (begin))
+ (begin)
+ (begin)
+ (begin (define bar (lambda (a b) (+ (* a b) a))))
+ (begin))
+ (begin)
+ (begin (foo (+ x 3)))))
+(define x 34)
+(define (foo) (define x 5) x)
+(test 5 foo)
+(test 34 'define x)
+(define foo (lambda () (define x 5) x))
+(test 5 foo)
+(test 34 'define x)
+(define (foo x) ((lambda () (define x 5) x)) x)
+(test 88 foo 88)
+(test 4 foo 4)
+(test 34 'define x)
+(test 99 'internal-define (letrec ((foo (lambda (arg)
+ (or arg (and (procedure? foo)
+ (foo 99))))))
+ (define bar (foo #f))
+ (foo #f)))
+(test 77 'internal-define (letrec ((foo 77)
+ (bar #f)
+ (retfoo (lambda () foo)))
+ (define baz (retfoo))
+ (retfoo)))
+(SECTION 6 1)
+(test #f not #t)
+(test #f not 3)
+(test #f not (list 3))
+(test #t not #f)
+(test #f not '())
+(test #f not (list))
+(test #f not 'nil)
+
+;(test #t boolean? #f)
+;(test #f boolean? 0)
+;(test #f boolean? '())
+(SECTION 6 2)
+(test #t eqv? 'a 'a)
+(test #f eqv? 'a 'b)
+(test #t eqv? 2 2)
+(test #t eqv? '() '())
+(test #t eqv? '10000 '10000)
+(test #f eqv? (cons 1 2)(cons 1 2))
+(test #f eqv? (lambda () 1) (lambda () 2))
+(test #f eqv? #f 'nil)
+(let ((p (lambda (x) x)))
+ (test #t eqv? p p))
+(define gen-counter
+ (lambda ()
+ (let ((n 0))
+ (lambda () (set! n (+ n 1)) n))))
+(let ((g (gen-counter))) (test #t eqv? g g))
+(test #f eqv? (gen-counter) (gen-counter))
+(letrec ((f (lambda () (if (eqv? f g) 'f 'both)))
+ (g (lambda () (if (eqv? f g) 'g 'both))))
+ (test #f eqv? f g))
+
+(test #t eq? 'a 'a)
+(test #f eq? (list 'a) (list 'a))
+(test #t eq? '() '())
+(test #t eq? car car)
+(let ((x '(a))) (test #t eq? x x))
+(let ((x '#())) (test #t eq? x x))
+(let ((x (lambda (x) x))) (test #t eq? x x))
+
+(define test-eq?-eqv?-agreement
+ (lambda (obj1 obj2)
+ (cond ((eq? (eq? obj1 obj2) (eqv? obj1 obj2)))
+ (else
+ (record-error (list #f #t (list 'test-eq?-eqv?-agreement obj1 obj2)))
+ (display "eqv? and eq? disagree about ")
+ (write obj1)
+ (display #\ )
+ (write obj2)
+ (newline)))))
+
+(test-eq?-eqv?-agreement '#f '#f)
+(test-eq?-eqv?-agreement '#t '#t)
+(test-eq?-eqv?-agreement '#t '#f)
+(test-eq?-eqv?-agreement '(a) '(a))
+(test-eq?-eqv?-agreement '(a) '(b))
+(test-eq?-eqv?-agreement car car)
+(test-eq?-eqv?-agreement car cdr)
+(test-eq?-eqv?-agreement (list 'a) (list 'a))
+(test-eq?-eqv?-agreement (list 'a) (list 'b))
+(test-eq?-eqv?-agreement '#(a) '#(a))
+(test-eq?-eqv?-agreement '#(a) '#(b))
+(test-eq?-eqv?-agreement "abc" "abc")
+(test-eq?-eqv?-agreement "abc" "abz")
+
+(test #t equal? 'a 'a)
+(test #t equal? '(a) '(a))
+(test #t equal? '(a (b) c) '(a (b) c))
+(test #t equal? "abc" "abc")
+(test #t equal? 2 2)
+(test #t equal? (make-vector 5 'a) (make-vector 5 'a))
+(SECTION 6 3)
+(test '(a b c d e) 'dot '(a . (b . (c . (d . (e . ()))))))
+(define x (list 'a 'b 'c))
+(define y x)
+(and list? (test #t list? y))
+(set-cdr! x 4)
+(test '(a . 4) 'set-cdr! x)
+(test #t eqv? x y)
+(test '(a b c . d) 'dot '(a . (b . (c . d))))
+(and list? (test #f list? y))
+(and list? (let ((x (list 'a))) (set-cdr! x x) (test #f 'list? (list? x))))
+
+;(test #t pair? '(a . b))
+;(test #t pair? '(a . 1))
+;(test #t pair? '(a b c))
+;(test #f pair? '())
+;(test #f pair? '#(a b))
+
+(test '(a) cons 'a '())
+(test '((a) b c d) cons '(a) '(b c d))
+(test '("a" b c) cons "a" '(b c))
+(test '(a . 3) cons 'a 3)
+(test '((a b) . c) cons '(a b) 'c)
+
+(test 'a car '(a b c))
+(test '(a) car '((a) b c d))
+(test 1 car '(1 . 2))
+
+(test '(b c d) cdr '((a) b c d))
+(test 2 cdr '(1 . 2))
+
+(test '(a 7 c) list 'a (+ 3 4) 'c)
+(test '() list)
+
+(test 3 length '(a b c))
+(test 3 length '(a (b) (c d e)))
+(test 0 length '())
+
+(test '(x y) append '(x) '(y))
+(test '(a b c d) append '(a) '(b c d))
+(test '(a (b) (c)) append '(a (b)) '((c)))
+(test '() append)
+(test '(a b c . d) append '(a b) '(c . d))
+(test 'a append '() 'a)
+
+(test '(c b a) reverse '(a b c))
+(test '((e (f)) d (b c) a) reverse '(a (b c) d (e (f))))
+
+(test 'c list-ref '(a b c d) 2)
+
+(test '(a b c) memq 'a '(a b c))
+(test '(b c) memq 'b '(a b c))
+(test '#f memq 'a '(b c d))
+(test '#f memq (list 'a) '(b (a) c))
+(test '((a) c) member (list 'a) '(b (a) c))
+(test '(101 102) memv 101 '(100 101 102))
+
+(define e '((a 1) (b 2) (c 3)))
+(test '(a 1) assq 'a e)
+(test '(b 2) assq 'b e)
+(test #f assq 'd e)
+(test #f assq (list 'a) '(((a)) ((b)) ((c))))
+(test '((a)) assoc (list 'a) '(((a)) ((b)) ((c))))
+(test '(5 7) assv 5 '((2 3) (5 7) (11 13)))
+(SECTION 6 4)
+;(test #t symbol? 'foo)
+(test #t symbol? (car '(a b)))
+;(test #f symbol? "bar")
+;(test #t symbol? 'nil)
+;(test #f symbol? '())
+;(test #f symbol? #f)
+;;; But first, what case are symbols in? Determine the standard case:
+(define char-standard-case char-upcase)
+(if (string=? (symbol->string 'A) "a")
+ (set! char-standard-case char-downcase))
+(test #t 'standard-case
+ (string=? (symbol->string 'a) (symbol->string 'A)))
+(test #t 'standard-case
+ (or (string=? (symbol->string 'a) "A")
+ (string=? (symbol->string 'A) "a")))
+(define (str-copy s)
+ (let ((v (make-string (string-length s))))
+ (do ((i (- (string-length v) 1) (- i 1)))
+ ((< i 0) v)
+ (string-set! v i (string-ref s i)))))
+(define (string-standard-case s)
+ (set! s (str-copy s))
+ (do ((i 0 (+ 1 i))
+ (sl (string-length s)))
+ ((>= i sl) s)
+ (string-set! s i (char-standard-case (string-ref s i)))))
+(test (string-standard-case "flying-fish") symbol->string 'flying-fish)
+(test (string-standard-case "martin") symbol->string 'Martin)
+(test "Malvina" symbol->string (string->symbol "Malvina"))
+(test #t 'standard-case (eq? 'a 'A))
+
+(define x (string #\a #\b))
+(define y (string->symbol x))
+(string-set! x 0 #\c)
+(test "cb" 'string-set! x)
+(test "ab" symbol->string y)
+(test y string->symbol "ab")
+
+(test #t eq? 'mISSISSIppi 'mississippi)
+(test #f 'string->symbol (eq? 'bitBlt (string->symbol "bitBlt")))
+(test 'JollyWog string->symbol (symbol->string 'JollyWog))
+
+(SECTION 6 5 5)
+(test #t number? 3)
+(test #t complex? 3)
+(test #t real? 3)
+(test #t rational? 3)
+(test #t integer? 3)
+
+(test #t exact? 3)
+(test #f inexact? 3)
+
+(test #t = 22 22 22)
+(test #t = 22 22)
+(test #f = 34 34 35)
+(test #f = 34 35)
+(test #t > 3 -6246)
+(test #f > 9 9 -2424)
+(test #t >= 3 -4 -6246)
+(test #t >= 9 9)
+(test #f >= 8 9)
+(test #t < -1 2 3 4 5 6 7 8)
+(test #f < -1 2 3 4 4 5 6 7)
+(test #t <= -1 2 3 4 5 6 7 8)
+(test #t <= -1 2 3 4 4 5 6 7)
+(test #f < 1 3 2)
+(test #f >= 1 3 2)
+
+(test #t zero? 0)
+(test #f zero? 1)
+(test #f zero? -1)
+(test #f zero? -100)
+(test #t positive? 4)
+(test #f positive? -4)
+(test #f positive? 0)
+(test #f negative? 4)
+(test #t negative? -4)
+(test #f negative? 0)
+(test #t odd? 3)
+(test #f odd? 2)
+(test #f odd? -4)
+(test #t odd? -1)
+(test #f even? 3)
+(test #t even? 2)
+(test #t even? -4)
+(test #f even? -1)
+
+(test 38 max 34 5 7 38 6)
+(test -24 min 3 5 5 330 4 -24)
+
+(test 7 + 3 4)
+(test '3 + 3)
+(test 0 +)
+(test 4 * 4)
+(test 1 *)
+
+(test -1 - 3 4)
+(test -3 - 3)
+(test 7 abs -7)
+(test 7 abs 7)
+(test 0 abs 0)
+
+(test 5 quotient 35 7)
+(test -5 quotient -35 7)
+(test -5 quotient 35 -7)
+(test 5 quotient -35 -7)
+(test 1 modulo 13 4)
+(test 1 remainder 13 4)
+(test 3 modulo -13 4)
+(test -1 remainder -13 4)
+(test -3 modulo 13 -4)
+(test 1 remainder 13 -4)
+(test -1 modulo -13 -4)
+(test -1 remainder -13 -4)
+(test 0 modulo 0 86400)
+(test 0 modulo 0 -86400)
+(define (divtest n1 n2)
+ (= n1 (+ (* n2 (quotient n1 n2))
+ (remainder n1 n2))))
+(test #t divtest 238 9)
+(test #t divtest -238 9)
+(test #t divtest 238 -9)
+(test #t divtest -238 -9)
+
+(test 4 gcd 0 4)
+(test 4 gcd -4 0)
+(test 4 gcd 32 -36)
+(test 0 gcd)
+(test 288 lcm 32 -36)
+(test 1 lcm)
+
+(SECTION 6 5 5)
+;;; Implementations which don't allow division by 0 can have fragile
+;;; string->number.
+(define (test-string->number str)
+ (define ans (string->number str))
+ (cond ((not ans) #t) ((number? ans) #t) (else ans)))
+(for-each (lambda (str) (test #t test-string->number str))
+ '("+#.#" "-#.#" "#.#" "1/0" "-1/0" "0/0"
+ "+1/0i" "-1/0i" "0/0i" "0/0-0/0i" "1/0-1/0i" "-1/0+1/0i"
+ "#i" "#e" "#" "#i0/0"))
+(cond ((number? (string->number "1+1i")) ;More kawa bait
+ (test #t number? (string->number "#i-i"))
+ (test #t number? (string->number "#i+i"))
+ (test #t number? (string->number "#i2+i"))))
+
+;;;;From: fred at sce.carleton.ca (Fred J Kaudel)
+;;; Modified by jaffer.
+(define (test-inexact)
+ (define f3.9 (string->number "3.9"))
+ (define f4.0 (string->number "4.0"))
+ (define f-3.25 (string->number "-3.25"))
+ (define f.25 (string->number ".25"))
+ (define f4.5 (string->number "4.5"))
+ (define f3.5 (string->number "3.5"))
+ (define f0.0 (string->number "0.0"))
+ (define f0.8 (string->number "0.8"))
+ (define f1.0 (string->number "1.0"))
+ (define wto write-test-obj)
+ (define lto load-test-obj)
+ (newline)
+ (display ";testing inexact numbers; ")
+ (newline)
+ (SECTION 6 2)
+ (test #f eqv? 1 f1.0)
+ (test #f eqv? 0 f0.0)
+ (SECTION 6 5 5)
+ (test #t inexact? f3.9)
+ (test #t 'max (inexact? (max f3.9 4)))
+ (test f4.0 max f3.9 4)
+ (test f4.0 exact->inexact 4)
+ (test f4.0 exact->inexact 4.0)
+ (test 4 inexact->exact 4)
+ (test 4 inexact->exact 4.0)
+ (test (- f4.0) round (- f4.5))
+ (test (- f4.0) round (- f3.5))
+ (test (- f4.0) round (- f3.9))
+ (test f0.0 round f0.0)
+ (test f0.0 round f.25)
+ (test f1.0 round f0.8)
+ (test f4.0 round f3.5)
+ (test f4.0 round f4.5)
+ (test 1 expt 0 0)
+ (test 0 expt 0 1)
+ (test (atan 1) atan 1 1)
+ (set! write-test-obj (list f.25 f-3.25));.25 inexact errors less likely.
+ (set! load-test-obj (list 'define 'foo (list 'quote write-test-obj)))
+ (test #t call-with-output-file
+ "tmp3"
+ (lambda (test-file)
+ (write-char #\; test-file)
+ (display #\; test-file)
+ (display ";" test-file)
+ (write write-test-obj test-file)
+ (newline test-file)
+ (write load-test-obj test-file)
+ (output-port? test-file)))
+ (check-test-file "tmp3")
+ (set! write-test-obj wto)
+ (set! load-test-obj lto)
+ (let ((x (string->number "4195835.0"))
+ (y (string->number "3145727.0")))
+ (test #t 'pentium-fdiv-bug (> f1.0 (- x (* (/ x y) y)))))
+ (report-errs))
+
+(define (test-inexact-printing)
+ (let ((f0.0 (string->number "0.0"))
+ (f0.5 (string->number "0.5"))
+ (f1.0 (string->number "1.0"))
+ (f2.0 (string->number "2.0")))
+ (define log2
+ (let ((l2 (log 2)))
+ (lambda (x) (/ (log x) l2))))
+
+ (define (slow-frexp x)
+ (if (zero? x)
+ (list f0.0 0)
+ (let* ((l2 (log2 x))
+ (e (floor (log2 x)))
+ (e (if (= l2 e)
+ (inexact->exact e)
+ (+ (inexact->exact e) 1)))
+ (f (/ x (expt 2 e))))
+ (list f e))))
+
+ (define float-precision
+ (let ((mantissa-bits
+ (do ((i 0 (+ i 1))
+ (eps f1.0 (* f0.5 eps)))
+ ((= f1.0 (+ f1.0 eps))
+ i)))
+ (minval
+ (do ((x f1.0 (* f0.5 x)))
+ ((zero? (* f0.5 x)) x))))
+ (lambda (x)
+ (apply (lambda (f e)
+ (let ((eps
+ (cond ((= f1.0 f) (expt f2.0 (+ 1 (- e mantissa-bits))))
+ ((zero? f) minval)
+ (else (expt f2.0 (- e mantissa-bits))))))
+ (if (zero? eps) ;Happens if gradual underflow.
+ minval
+ eps)))
+ (slow-frexp x)))))
+
+ (define (float-print-test x)
+ (define (testit number)
+ (eqv? number (string->number (number->string number))))
+ (let ((eps (float-precision x))
+ (all-ok? #t))
+ (do ((j -100 (+ j 1)))
+ ((or (not all-ok?) (> j 100)) all-ok?)
+ (let* ((xx (+ x (* j eps)))
+ (ok? (testit xx)))
+ (cond ((not ok?)
+ (display "Number readback failure for ")
+ (display `(+ ,x (* ,j ,eps)))
+ (newline)
+ (display xx)
+ (newline)
+ (set! all-ok? #f))
+ ;; (else (display xx) (newline))
+ )))))
+
+ (define (mult-float-print-test x)
+ (let ((res #t))
+ (for-each
+ (lambda (mult)
+ (or (float-print-test (* mult x)) (set! res #f)))
+ (map string->number
+ '("1.0" "10.0" "100.0" "1.0e20" "1.0e50" "1.0e100"
+ "0.1" "0.01" "0.001" "1.0e-20" "1.0e-50" "1.0e-100")))
+ res))
+
+ (SECTION 6 5 6)
+ (test #t 'float-print-test (float-print-test f0.0))
+ (test #t 'mult-float-print-test (mult-float-print-test f1.0))
+ (test #t 'mult-float-print-test (mult-float-print-test
+ (string->number "3.0")))
+ (test #t 'mult-float-print-test (mult-float-print-test
+ (string->number "7.0")))
+ (test #t 'mult-float-print-test (mult-float-print-test
+ (string->number "3.1415926535897931")))
+ (test #t 'mult-float-print-test (mult-float-print-test
+ (string->number "2.7182818284590451")))))
+
+(define (test-bignum)
+ (define tb
+ (lambda (n1 n2)
+ (= n1 (+ (* n2 (quotient n1 n2))
+ (remainder n1 n2)))))
+ (newline)
+ (display ";testing bignums; ")
+ (newline)
+ (SECTION 6 5 7)
+ (test 0 modulo 33333333333333333333 3)
+ (test 0 modulo 33333333333333333333 -3)
+ (test 0 remainder 33333333333333333333 3)
+ (test 0 remainder 33333333333333333333 -3)
+ (test 2 modulo 33333333333333333332 3)
+ (test -1 modulo 33333333333333333332 -3)
+ (test 2 remainder 33333333333333333332 3)
+ (test 2 remainder 33333333333333333332 -3)
+ (test 1 modulo -33333333333333333332 3)
+ (test -2 modulo -33333333333333333332 -3)
+ (test -2 remainder -33333333333333333332 3)
+ (test -2 remainder -33333333333333333332 -3)
+
+ (test 3 modulo 3 33333333333333333333)
+ (test 33333333333333333330 modulo -3 33333333333333333333)
+ (test 3 remainder 3 33333333333333333333)
+ (test -3 remainder -3 33333333333333333333)
+ (test -33333333333333333330 modulo 3 -33333333333333333333)
+ (test -3 modulo -3 -33333333333333333333)
+ (test 3 remainder 3 -33333333333333333333)
+ (test -3 remainder -3 -33333333333333333333)
+
+ (test 0 modulo -2177452800 86400)
+ (test 0 modulo 2177452800 -86400)
+ (test 0 modulo 2177452800 86400)
+ (test 0 modulo -2177452800 -86400)
+ (test 0 modulo 0 -2177452800)
+ (test #t 'remainder (tb 281474976710655325431 65535))
+ (test #t 'remainder (tb 281474976710655325430 65535))
+
+ (SECTION 6 5 8)
+ (test 281474976710655325431 string->number "281474976710655325431")
+ (test "281474976710655325431" number->string 281474976710655325431)
+ (report-errs))
+
+(define (test-numeric-predicates)
+ (let* ((big-ex (expt 2 90))
+ (big-inex (exact->inexact big-ex)))
+ (newline)
+ (display ";testing bignum-inexact comparisons;")
+ (newline)
+ (SECTION 6 5 5)
+ (test #f = (+ big-ex 1) big-inex (- big-ex 1))
+ (test #f = big-inex (+ big-ex 1) (- big-ex 1))
+ (test #t < (- (inexact->exact big-inex) 1)
+ big-inex
+ (+ (inexact->exact big-inex) 1))))
+
+
+(SECTION 6 5 9)
+(test "0" number->string 0)
+(test "100" number->string 100)
+(test "100" number->string 256 16)
+(test 100 string->number "100")
+(test 256 string->number "100" 16)
+(test #f string->number "")
+(test #f string->number ".")
+(test #f string->number "d")
+(test #f string->number "D")
+(test #f string->number "i")
+(test #f string->number "I")
+(test #f string->number "3i")
+(test #f string->number "3I")
+(test #f string->number "33i")
+(test #f string->number "33I")
+(test #f string->number "3.3i")
+(test #f string->number "3.3I")
+(test #f string->number "-")
+(test #f string->number "+")
+(test #t 'string->number (or (not (string->number "80000000" 16))
+ (positive? (string->number "80000000" 16))))
+(test #t 'string->number (or (not (string->number "-80000000" 16))
+ (negative? (string->number "-80000000" 16))))
+
+(SECTION 6 6)
+(test #t eqv? '#\ #\Space)
+(test #t eqv? #\space '#\Space)
+(test #t char? #\a)
+(test #t char? #\()
+(test #t char? #\ )
+(test #t char? '#\newline)
+
+(test #f char=? #\A #\B)
+(test #f char=? #\a #\b)
+(test #f char=? #\9 #\0)
+(test #t char=? #\A #\A)
+
+(test #t char<? #\A #\B)
+(test #t char<? #\a #\b)
+(test #f char<? #\9 #\0)
+(test #f char<? #\A #\A)
+
+(test #f char>? #\A #\B)
+(test #f char>? #\a #\b)
+(test #t char>? #\9 #\0)
+(test #f char>? #\A #\A)
+
+(test #t char<=? #\A #\B)
+(test #t char<=? #\a #\b)
+(test #f char<=? #\9 #\0)
+(test #t char<=? #\A #\A)
+
+(test #f char>=? #\A #\B)
+(test #f char>=? #\a #\b)
+(test #t char>=? #\9 #\0)
+(test #t char>=? #\A #\A)
+
+(test #f char-ci=? #\A #\B)
+(test #f char-ci=? #\a #\B)
+(test #f char-ci=? #\A #\b)
+(test #f char-ci=? #\a #\b)
+(test #f char-ci=? #\9 #\0)
+(test #t char-ci=? #\A #\A)
+(test #t char-ci=? #\A #\a)
+
+(test #t char-ci<? #\A #\B)
+(test #t char-ci<? #\a #\B)
+(test #t char-ci<? #\A #\b)
+(test #t char-ci<? #\a #\b)
+(test #f char-ci<? #\9 #\0)
+(test #f char-ci<? #\A #\A)
+(test #f char-ci<? #\A #\a)
+
+(test #f char-ci>? #\A #\B)
+(test #f char-ci>? #\a #\B)
+(test #f char-ci>? #\A #\b)
+(test #f char-ci>? #\a #\b)
+(test #t char-ci>? #\9 #\0)
+(test #f char-ci>? #\A #\A)
+(test #f char-ci>? #\A #\a)
+
+(test #t char-ci<=? #\A #\B)
+(test #t char-ci<=? #\a #\B)
+(test #t char-ci<=? #\A #\b)
+(test #t char-ci<=? #\a #\b)
+(test #f char-ci<=? #\9 #\0)
+(test #t char-ci<=? #\A #\A)
+(test #t char-ci<=? #\A #\a)
+
+(test #f char-ci>=? #\A #\B)
+(test #f char-ci>=? #\a #\B)
+(test #f char-ci>=? #\A #\b)
+(test #f char-ci>=? #\a #\b)
+(test #t char-ci>=? #\9 #\0)
+(test #t char-ci>=? #\A #\A)
+(test #t char-ci>=? #\A #\a)
+
+(test #t char-alphabetic? #\a)
+(test #t char-alphabetic? #\A)
+(test #t char-alphabetic? #\z)
+(test #t char-alphabetic? #\Z)
+(test #f char-alphabetic? #\0)
+(test #f char-alphabetic? #\9)
+(test #f char-alphabetic? #\space)
+(test #f char-alphabetic? #\;)
+
+(test #f char-numeric? #\a)
+(test #f char-numeric? #\A)
+(test #f char-numeric? #\z)
+(test #f char-numeric? #\Z)
+(test #t char-numeric? #\0)
+(test #t char-numeric? #\9)
+(test #f char-numeric? #\space)
+(test #f char-numeric? #\;)
+
+(test #f char-whitespace? #\a)
+(test #f char-whitespace? #\A)
+(test #f char-whitespace? #\z)
+(test #f char-whitespace? #\Z)
+(test #f char-whitespace? #\0)
+(test #f char-whitespace? #\9)
+(test #t char-whitespace? #\space)
+(test #f char-whitespace? #\;)
+
+(test #f char-upper-case? #\0)
+(test #f char-upper-case? #\9)
+(test #f char-upper-case? #\space)
+(test #f char-upper-case? #\;)
+
+(test #f char-lower-case? #\0)
+(test #f char-lower-case? #\9)
+(test #f char-lower-case? #\space)
+(test #f char-lower-case? #\;)
+
+(test #\. integer->char (char->integer #\.))
+(test #\A integer->char (char->integer #\A))
+(test #\a integer->char (char->integer #\a))
+(test #\A char-upcase #\A)
+(test #\A char-upcase #\a)
+(test #\a char-downcase #\A)
+(test #\a char-downcase #\a)
+(SECTION 6 7)
+(test #t string? "The word \"recursion\\\" has many meanings.")
+;(test #t string? "")
+(define f (make-string 3 #\*))
+(test "?**" 'string-set! (begin (string-set! f 0 #\?) f))
+(test "abc" string #\a #\b #\c)
+(test "" string)
+(test 3 string-length "abc")
+(test #\a string-ref "abc" 0)
+(test #\c string-ref "abc" 2)
+(test 0 string-length "")
+(test "" substring "ab" 0 0)
+(test "" substring "ab" 1 1)
+(test "" substring "ab" 2 2)
+(test "a" substring "ab" 0 1)
+(test "b" substring "ab" 1 2)
+(test "ab" substring "ab" 0 2)
+(test "foobar" string-append "foo" "bar")
+(test "foo" string-append "foo")
+(test "foo" string-append "foo" "")
+(test "foo" string-append "" "foo")
+(test "" string-append)
+(test "" make-string 0)
+(test #t string=? "" "")
+(test #f string<? "" "")
+(test #f string>? "" "")
+(test #t string<=? "" "")
+(test #t string>=? "" "")
+(test #t string-ci=? "" "")
+(test #f string-ci<? "" "")
+(test #f string-ci>? "" "")
+(test #t string-ci<=? "" "")
+(test #t string-ci>=? "" "")
+
+(test #f string=? "A" "B")
+(test #f string=? "a" "b")
+(test #f string=? "9" "0")
+(test #t string=? "A" "A")
+
+(test #t string<? "A" "B")
+(test #t string<? "a" "b")
+(test #f string<? "9" "0")
+(test #f string<? "A" "A")
+
+(test #f string>? "A" "B")
+(test #f string>? "a" "b")
+(test #t string>? "9" "0")
+(test #f string>? "A" "A")
+
+(test #t string<=? "A" "B")
+(test #t string<=? "a" "b")
+(test #f string<=? "9" "0")
+(test #t string<=? "A" "A")
+
+(test #f string>=? "A" "B")
+(test #f string>=? "a" "b")
+(test #t string>=? "9" "0")
+(test #t string>=? "A" "A")
+
+(test #f string-ci=? "A" "B")
+(test #f string-ci=? "a" "B")
+(test #f string-ci=? "A" "b")
+(test #f string-ci=? "a" "b")
+(test #f string-ci=? "9" "0")
+(test #t string-ci=? "A" "A")
+(test #t string-ci=? "A" "a")
+
+(test #t string-ci<? "A" "B")
+(test #t string-ci<? "a" "B")
+(test #t string-ci<? "A" "b")
+(test #t string-ci<? "a" "b")
+(test #f string-ci<? "9" "0")
+(test #f string-ci<? "A" "A")
+(test #f string-ci<? "A" "a")
+
+(test #f string-ci>? "A" "B")
+(test #f string-ci>? "a" "B")
+(test #f string-ci>? "A" "b")
+(test #f string-ci>? "a" "b")
+(test #t string-ci>? "9" "0")
+(test #f string-ci>? "A" "A")
+(test #f string-ci>? "A" "a")
+
+(test #t string-ci<=? "A" "B")
+(test #t string-ci<=? "a" "B")
+(test #t string-ci<=? "A" "b")
+(test #t string-ci<=? "a" "b")
+(test #f string-ci<=? "9" "0")
+(test #t string-ci<=? "A" "A")
+(test #t string-ci<=? "A" "a")
+
+(test #f string-ci>=? "A" "B")
+(test #f string-ci>=? "a" "B")
+(test #f string-ci>=? "A" "b")
+(test #f string-ci>=? "a" "b")
+(test #t string-ci>=? "9" "0")
+(test #t string-ci>=? "A" "A")
+(test #t string-ci>=? "A" "a")
+(SECTION 6 8)
+(test #t vector? '#(0 (2 2 2 2) "Anna"))
+;(test #t vector? '#())
+(test '#(a b c) vector 'a 'b 'c)
+(test '#() vector)
+(test 3 vector-length '#(0 (2 2 2 2) "Anna"))
+(test 0 vector-length '#())
+(test 8 vector-ref '#(1 1 2 3 5 8 13 21) 5)
+(test '#(0 ("Sue" "Sue") "Anna") 'vector-set
+ (let ((vec (vector 0 '(2 2 2 2) "Anna")))
+ (vector-set! vec 1 '("Sue" "Sue"))
+ vec))
+(test '#(hi hi) make-vector 2 'hi)
+(test '#() make-vector 0)
+(test '#() make-vector 0 'a)
+(SECTION 6 9)
+(test #t procedure? car)
+;(test #f procedure? 'car)
+(test #t procedure? (lambda (x) (* x x)))
+(test #f procedure? '(lambda (x) (* x x)))
+(test #t call-with-current-continuation procedure?)
+(test 7 apply + (list 3 4))
+(test 7 apply (lambda (a b) (+ a b)) (list 3 4))
+(test 17 apply + 10 (list 3 4))
+(test '() apply list '())
+(define compose (lambda (f g) (lambda args (f (apply g args)))))
+(test 30 (compose sqt *) 12 75)
+
+(test '(b e h) map cadr '((a b) (d e) (g h)))
+(test '(5 7 9) map + '(1 2 3) '(4 5 6))
+(test '(1 2 3) map + '(1 2 3))
+(test '(1 2 3) map * '(1 2 3))
+(test '(-1 -2 -3) map - '(1 2 3))
+(test '#(0 1 4 9 16) 'for-each
+ (let ((v (make-vector 5)))
+ (for-each (lambda (i) (vector-set! v i (* i i)))
+ '(0 1 2 3 4))
+ v))
+(test -3 call-with-current-continuation
+ (lambda (exit)
+ (for-each (lambda (x) (if (negative? x) (exit x)))
+ '(54 0 37 -3 245 19))
+ #t))
+(define list-length
+ (lambda (obj)
+ (call-with-current-continuation
+ (lambda (return)
+ (letrec ((r (lambda (obj) (cond ((null? obj) 0)
+ ((pair? obj) (+ (r (cdr obj)) 1))
+ (else (return #f))))))
+ (r obj))))))
+(test 4 list-length '(1 2 3 4))
+(test #f list-length '(a b . c))
+(test '() map cadr '())
+
+;;; This tests full conformance of call-with-current-continuation. It
+;;; is a separate test because some schemes do not support call/cc
+;;; other than escape procedures. I am indebted to
+;;; raja at copper.ucs.indiana.edu (Raja Sooriamurthi) for fixing this
+;;; code. The function leaf-eq? compares the leaves of 2 arbitrary
+;;; trees constructed of conses.
+(define (next-leaf-generator obj eot)
+ (letrec ((return #f)
+ (cont (lambda (x)
+ (recur obj)
+ (set! cont (lambda (x) (return eot)))
+ (cont #f)))
+ (recur (lambda (obj)
+ (if (pair? obj)
+ (for-each recur obj)
+ (call-with-current-continuation
+ (lambda (c)
+ (set! cont c)
+ (return obj)))))))
+ (lambda () (call-with-current-continuation
+ (lambda (ret) (set! return ret) (cont #f))))))
+(define (leaf-eq? x y)
+ (let* ((eot (list 'eot))
+ (xf (next-leaf-generator x eot))
+ (yf (next-leaf-generator y eot)))
+ (letrec ((loop (lambda (x y)
+ (cond ((not (eq? x y)) #f)
+ ((eq? eot x) #t)
+ (else (loop (xf) (yf)))))))
+ (loop (xf) (yf)))))
+(define (test-cont)
+ (newline)
+ (display ";testing continuations; ")
+ (newline)
+ (SECTION 6 9)
+ (test #t leaf-eq? '(a (b (c))) '((a) b c))
+ (test #f leaf-eq? '(a (b (c))) '((a) b c d))
+ (report-errs))
+
+;;; Test Optional R4RS DELAY syntax and FORCE procedure
+(define (test-delay)
+ (newline)
+ (display ";testing DELAY and FORCE; ")
+ (newline)
+ (SECTION 6 9)
+ (test 3 'delay (force (delay (+ 1 2))))
+ (test '(3 3) 'delay (let ((p (delay (+ 1 2))))
+ (list (force p) (force p))))
+ (test 2 'delay (letrec ((a-stream
+ (letrec ((next (lambda (n)
+ (cons n (delay (next (+ n 1)))))))
+ (next 0)))
+ (head car)
+ (tail (lambda (stream) (force (cdr stream)))))
+ (head (tail (tail a-stream)))))
+ (letrec ((count 0)
+ (p (delay (begin (set! count (+ count 1))
+ (if (> count x)
+ count
+ (force p)))))
+ (x 5))
+ (test 6 force p)
+ (set! x 10)
+ (test 6 force p))
+ (test 3 'force
+ (letrec ((p (delay (if c 3 (begin (set! c #t) (+ (force p) 1)))))
+ (c #f))
+ (force p)))
+ (report-errs))
+
+(SECTION 6 10 1)
+(test #t input-port? (current-input-port))
+(test #t output-port? (current-output-port))
+(test #t call-with-input-file "./test/test-r4rs.scm" input-port?)
+(define this-file (open-input-file "./test/test-r4rs.scm"))
+(test #t input-port? this-file)
+(SECTION 6 10 2)
+(test #\; peek-char this-file)
+(test #\; read-char this-file)
+(test '(define cur-section '()) read this-file)
+(test #\( peek-char this-file)
+(test '(define errs '()) read this-file)
+(close-input-port this-file)
+(close-input-port this-file)
+(define (check-test-file name)
+ (define test-file (open-input-file name))
+ (test #t 'input-port?
+ (call-with-input-file
+ name
+ (lambda (test-file)
+ (test load-test-obj read test-file)
+ (test #t eof-object? (peek-char test-file))
+ (test #t eof-object? (read-char test-file))
+ (input-port? test-file))))
+ (test #\; read-char test-file)
+ (test #\; read-char test-file)
+ (test #\; read-char test-file)
+ (test write-test-obj read test-file)
+ (test load-test-obj read test-file)
+ (close-input-port test-file))
+(SECTION 6 10 3)
+(define write-test-obj
+ '(#t #f a () 9739 -3 . #((test) "te \" \" st" "" test #() b c)))
+(define load-test-obj
+ (list 'define 'foo (list 'quote write-test-obj)))
+(test #t call-with-output-file
+ "tmp1"
+ (lambda (test-file)
+ (write-char #\; test-file)
+ (display #\; test-file)
+ (display ";" test-file)
+ (write write-test-obj test-file)
+ (newline test-file)
+ (write load-test-obj test-file)
+ (output-port? test-file)))
+(check-test-file "tmp1")
+
+(define test-file (open-output-file "tmp2"))
+(write-char #\; test-file)
+(display #\; test-file)
+(display ";" test-file)
+(write write-test-obj test-file)
+(newline test-file)
+(write load-test-obj test-file)
+(test #t output-port? test-file)
+(close-output-port test-file)
+(check-test-file "tmp2")
+(define (test-sc4)
+ (newline)
+ (display ";testing scheme 4 functions; ")
+ (newline)
+ (SECTION 6 7)
+ (test '(#\P #\space #\l) string->list "P l")
+ (test '() string->list "")
+ (test "1\\\"" list->string '(#\1 #\\ #\"))
+ (test "" list->string '())
+ (SECTION 6 8)
+ (test '(dah dah didah) vector->list '#(dah dah didah))
+ (test '() vector->list '#())
+ (test '#(dididit dah) list->vector '(dididit dah))
+ (test '#() list->vector '())
+ (SECTION 6 10 4)
+ (load "tmp1")
+ (test write-test-obj 'load foo)
+ (report-errs))
+
+(report-errs)
+(let ((have-inexacts?
+ (and (string->number "0.0") (inexact? (string->number "0.0"))))
+ (have-bignums?
+ (let ((n (string->number "281474976710655325431")))
+ (and n (exact? n)))))
+ (cond (have-inexacts?
+ (test-inexact)
+ (test-inexact-printing)))
+ (if have-bignums? (test-bignum))
+ (if (and have-inexacts? have-bignums?)
+ (test-numeric-predicates)))
+
+(newline)
+(display "To fully test continuations, Scheme 4, and DELAY/FORCE do:")
+(newline)
+(display "(test-cont) (test-sc4) (test-delay)")
+(newline)
+"last item in file"
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