http://qs1969.pair.com?node_id=482654


in reply to symbolic ref error

Maybe $_[2] or $_[0] aren't defined?! 
if ($_[1] == 1) {
    die "something went wrong!\n" unless (defined $_[2] 
        and defined $_[0]);
    # ...
}

[download]
 See above: 482663 - for a reasonable solution.

In Section Seekers of Perl Wisdom