Conserving memory - was SPUG: Fw: greetings

[Jason Lamport]

At 11:27 AM -0700 10/21/01, Jeremy Devenport wrote:
>
>Here's what I learned:
>
>1) You don't need to check for defined inside a while loop condition if
>it is of the form <FILE> or $var = <FILE>. Perl does this for you.

Is this true for all versions of Perl?  I seem vaguely to recall that 
this was a fairly recent (post 5.004) enhancement.  But I could be 
mis-remembering.

-jason


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