Farrel Lifson <farrel.lifson <at> gmail.com> writes:

> 
> You're not actually passing the array around whenever you call
> enter_dir, rather you're passing a reference to the object, so the
> performance penalties should not be noticable at all.
> 
> Farrel
> 
> 


Hopefully that makes sense, but if it doesn't, imagine tying a long piece of
string to a large rock and then giving the other end of the string to someone to
hold