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

When you have an aggregate (array or hash) in a list that variable will be assigned all the values.    So: 

my ( @x, @y, @z ) = ("z", "y", "z");

[download]

Is exactly the same as: 

my @x = ("z", "y", "z");
my ( @y, @z );

[download]

Replies are listed 'Best First'.
Re^8: Referencing in Function not working correctly.
by mr_p (Scribe) on Apr 02, 2010 at 20:11 UTC

    So, I don't get what is wrong with me doing

    (%count, @isec, @diff, @union, @aonly) = ();

    to initialize?

[reply]
[d/l]

      Because @isec, @diff, @union and @aonly will not be effected by that assignment but you seem to think that they will.

[reply]
[d/l]

        I just put this code through.

        my @x = ("1");
my @y = ("1");
my @z = ("1");
print "Before: @x, @y, @z\n";
(@x, @y, @z) = ();
print "After: @x, @y, @z\n";

        [download]

        and got this output:

        Before: 1, 1, 1
After: , ,

        [download]

        It initialized all variables.

[reply]
[d/l]
[select]

In Section Seekers of Perl Wisdom