in reply to Re^7: Shouldn't references be readonly?
in thread Shouldn't LITERAL references be readonly? (updated)

> I have no idea about which aliases you are talking here,

In the OP in lines 25 -34 $_ is an alias.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In Section Seekers of Perl Wisdom