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Re: tri-state flags

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From:
abigail
Date:
December 5, 2001 09:31
Subject:
Re: tri-state flags
Message ID:
20011205172943.1520.qmail@foad.org
On Wed, Dec 05, 2001 at 11:44:30AM -0500, Martin 'Kingpin' Thurn wrote:
> How about
> 
> (eval{$flag} eq '0')


That triggers a warning if $flag is undefined. If one doesn't care
about warnings, "$flag eq 0" would do too. However, it's doesn't
return true on "", which turned out to be required.



Abigail

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