optional argument behavior

Igor Schein on Tue, 01 Feb 2005 21:25:41 +0100

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optional argument behavior

To: Developers Pari <pari-dev@list.cr.yp.to>
Subject: optional argument behavior
From: Igor Schein <igor@txc.com>
Date: Tue, 1 Feb 2005 15:18:14 -0500
Delivery-date: Tue, 01 Feb 2005 21:25:41 +0100
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Reply-to: igor@txc.com
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Hi,

Since I'm not sure whether it's a bug or a feature, I'm posting it
here instead of reporting a bug:

? f(a,b=a)=[a,b]
? f(1)
[1, a]

For a very long time I've operated under ( a possibly false )
assumption that the correct answer here would be [1, 1]

Thanks

Igor

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