suzanne.soy/travis-racket
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Add minus1

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This commit is contained in:
Greg Hendershott 2013-07-02 14:16:01 -04:00
parent a84e47e80e
commit 7ed7e0cd2b
1 changed files with 5 additions and 1 deletions
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6
main.rkt
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@ -3,6 +3,10 @@
(define (plus1 x) (define (plus1 x)
(add1 x)) (add1 x))
(define (minus1 x)
(sub1 x))
(module+ test (module+ test
(require rackunit) (require rackunit)
(check-equal? (plus1 1) 2)) (check-equal? (plus1 1) 2)
(check-equal? (minus1 1) 0))