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Re^3: Returning a tied scalar

by MarkusLaker (Beadle)
on Apr 17, 2005 at 11:00 UTC ( [id://448619]=note: print w/replies, xml ) Need Help??


in reply to Re^2: Returning a tied scalar
in thread Returning a tied scalar

Nobull writes:
There is no need for a prototype which also means you don't need to forgo the OO if you don't want to.

sub int_monitor:lvalue { my $var=\shift; print "$var\n"; $$var };

Very neat! I guess that relies on two facts: that @_ contains aliases to the args (which I knew but had forgotten) and that shift returns the first element of the array, rather than a copy of it.

Thanks for your suggestions,

Markus

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