Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Answer: Is it possible to do pass by reference in Perl

( #6777=categorized answer: print w/ replies, xml ) Need Help??

Q&A > subroutines > Is it possible to do pass by reference in Perl? contributed by btrott

... And, as would follow from chromatic's answer, if you modify the references within a subroutine, you'll also modify the values those references point to, outside the subroutine.
my $str = "foo"; print $str, "\n"; change(\$str); print $str, "\n"; sub change { my $ref = shift; $$ref = "bar"; }

Comment on Answer: Is it possible to do pass by reference in Perl
Download Code
Log In?
Username:
Password:

What's my password?
Create A New User
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (5)
As of 2015-07-06 09:04 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (70 votes), past polls