[Israel.pm] reference to tied variables
yuval at windax.com
Thu Jul 15 13:25:12 PDT 2004
No offense, but are you aware of what references are and what they mean?
Get a book like "Advanced Perl Programming" and look for the nice
graphical explanation; means more than a 1000 words...
In case you have APP - pages 7, 14, 17 (this book is GREAT, get it if you
don't have it, as you see I always keep it near my computer).
As for untie - you said it yourself: perldoc -f untie
Keep us updated, good luck.
Moshe Kaminsky said:
> Please consider the following code segment:
> tie my $Foo, Momo;
> $Bar = \$Foo;
> $$Bar = 4;
> print $$Bar, "\n";
> ====>8===Surprisingly, this actually works (ie, whatever magic Momo
> introduces applies in the assignment and printing). My question is
> first whether it is intentional, and if so, how do I untie whatever is
> tied now, and when the controlling object gets destroyed.
> The reason I ask is that I managed to apply this nicely by combining it
> with overloading, and all works fine until I get to the destruction of
> the controlling object, where I see very weird things that I can only
> describe as a bug.
> I love deadlines. I like the whooshing sound they make as they fly by.
> -- Douglas Adams
> Moshe Kaminsky <kaminsky at math.huji.ac.il>
> Home: 08-9456841
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