Using grep on undefined array

[Abigail]

On Wed, Aug 14, 2013 at 06:38:04PM +0100, Eduardo Marques wrote:
> > Date: Wed, 14 Aug 2013 19:03:34 +0200
> > From: abigail at abigail.be
> > To: london.pm at london.pm.org
> > Subject: Re: Using grep on undefined array
> > 
> > On Wed, Aug 14, 2013 at 12:35:19PM -0400, Avishalom Shalit wrote:
> > > wait, aren't $a and $b special  ?
> > > (they magically live for {$a<=>$b} etc. )
> > 
> > 
> > They are only special in special cases. Outside of that, they are as
> > friendly as your other variable.
> > 
> > People who pipe up upon seeing some code that uses $a and $b for
> > illustrative purposes, predicting hell and doom even if there's no sort
> > in that code behave like mindless grasshoppers, incapable of thinking for
> > themselves. They probably also argue one shouldn't take water with you
> > in a desert, because more people drown in water than in any other liquid.
> > 
> > 
> > 
> > Abigail
> 
> What about the strict pragma being perfectly fine with you using them without declaring?
> 


Well, what about that? Does that matter? If so, why?



Abigail