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changed union to or/c

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svn: r8747
This commit is contained in:
Robby Findler 2008-02-20 23:25:13 +00:00
parent f0efed2a3e
commit 9692473c62
1 changed files with 1 additions and 1 deletions
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2
collects/scheme/async-channel.ss
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@ -152,7 +152,7 @@
(provide async-channel?)
(provide/contract (make-async-channel (case->
(-> async-channel?)
((union false/c (lambda (x)
((or/c false/c (lambda (x)
(and (integer? x)
(exact? x)
(positive? x))))