From: gabriele renzi <rff_rff@...>
Date: 2005-01-18T05:26:11+09:00
Subject: Re: is defined? fast?

Robert Klemme ha scritto:
> "George Moschovitis" <george.moschovitis@gmail.com> schrieb im Newsbeitrag
> news:1105968115.995603.227690@f14g2000cwb.googlegroups.com...
> 
>>Hello everyone, I have a simple question:
>>
>>is 'if defined?(MyFlag)' as fast as 'if $my_flag'
>>or is it much slower?
>>
>>Any information will be appreciated.
> 
> 
> You cannot compare them as both have different functionality: defined?
> checks whether a var is defined while the other test uses the var value.
> 

I think he's wondering if writing stuff like

conditionalstuff
if defined? foo

vs
foo=bar
conditionalstuff
if foo