From: Marius Vollmer <marius.vollmer@uni-dortmund.de>
Subject: Re: format ~@d +0
Date: Tue, 24 Aug 2004 19:33:31 +0200 [thread overview]
Message-ID: <lj7jrofnkk.fsf@troy.dt.e-technik.uni-dortmund.de> (raw)
In-Reply-To: <87fz6er7o5.fsf@zip.com.au> (Kevin Ryde's message of "Mon, 23 Aug 2004 10:59:22 +1000")
Kevin Ryde <user42@zip.com.au> writes:
> ice-9 format ~@d prints positives with a "+" sign, but 0 is printed
> without one. I think this is contrary to CL, and it's not what ice-9
> format does on floats with ~@f.
What is the sign of zero? ;) IEEE zeros do have a sign, so we should
print them.
> Although the code "(> number 0)" looks like no + on 0 is sort of
> deliberate it seems to me a mistake that would be worth correcting.
The Hyperspec isn't clear about this either, but Clisp prints
"+0"... hmmm. The docs say that the sign is always printed, and the
canonical sign of zero is +, so we should print a "+".
Please make that change, then!
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prev parent reply other threads:[~2004-08-24 17:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-23 0:59 format ~@d +0 Kevin Ryde
2004-08-24 17:33 ` Marius Vollmer [this message]
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