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From: Cecil Westerhof <Cecil@decebal.nl>
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Subject: Re: How to see that a variable holds t
Date: Wed, 06 Jan 2010 14:29:19 +0100
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pjb@informatimago.com (Pascal J. Bourguignon) writes:

>      (defun switch-gnus-idle-daemon-do-log ()
>        (interactive)
>        (setq gnus-idle-daemon-do-log
>              (case gnus-idle-daemon-do-log
>                ((t)       10)
>                (otherwise t)))
>        (message "gnus-idle-daemon-do-log: %s"
>        gnus-idle-daemon-do-log))

As earlier said: it works, but I do not understand the difference
between:
    ((t)       10)
and:
    (t       10)

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof