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added null operator to (picrin control list)

This commit is contained in:
Yuichi Nishiwaki 2014-06-28 12:07:56 +09:00
parent f37c88c174
commit c26fc144f3
1 changed files with 4 additions and 1 deletions
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5
contrib/20.for/piclib/for.scm
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@ -15,4 +15,7 @@
(define (yield x) (define (yield x)
(list x)) (list x))
(export for in yield)) (define (null . x)
'())
(export for in yield null))