in reply to Re^6: Referencing in Function not working correctly.
in thread Referencing in Function not working correctly.

:)

perl -MData::Dumper -lwe 'my ( @x, @y, @z ) = ("z", "y", "z"); print D
+umper(\(@x,@y,@z))'
$VAR1 = [
          'z',
          'y',
          'z'
        ];
$VAR2 = [];
$VAR3 = [];

[download]
my (%Aseen, %Bseen, %count, @isec, @diff, @union, @aonly);

They all are declared empty. No need to be explicit about it; and as the example above shows, that form of being explicit won't do what you might think anyway.

In Section Seekers of Perl Wisdom