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fix order of arguments in lset=

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This commit is contained in:
Alex Shinn 2020-05-27 14:27:31 +09:00
parent ca52b2ff97
commit 255ee079e5
2 changed files with 4 additions and 1 deletions
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3
lib/srfi/1/lset.scm
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@ -15,7 +15,8 @@
(lp1 set2 (cdr sets)))))))))
(define (lset= eq . sets)
(and (apply lset<= eq sets) (apply lset<= eq (reverse sets))))
(and (apply lset<= eq sets)
(apply lset<= (lambda (b a) (eq a b)) (reverse sets))))
(define (lset-adjoin eq set . elts)
(lset-union2 eq set elts))

2
lib/srfi/1/test.sld
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@ -164,6 +164,8 @@
(test #f (lset= = '(2 1) '(2 1 0)))
(test #t (lset<= = '(2 1) '(2 1 0)))
(test #f (lset<= = '(2 1 0) '(2 1)))
;; order matters
(test #t (lset= (lambda (a b) (= (inexact->exact (round a)) b)) '(1.2 0.1 2.3) '(2 1 0)))
(test '(u o i a b c d c e) (lset-adjoin eq? '(a b c d c e) 'a 'e 'i 'o 'u))
(test '(u o i a b c d e) (lset-union eq? '(a b c d e) '(a e i o u)))
(test '(x a a c) (lset-union eq? '(a a c) '(x a x)))