Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

(tye)Re: strict.pm

by tye (Cardinal)
on Mar 01, 2001 at 01:09 UTC ( #61434=note: print w/ replies, xml ) Need Help??


in reply to Re: strict.pm
in thread strict.pm

You create a symbolic reference like this:

$a= "this";
Doesn't look like a symbolic reference, does it? But it is. It isn't the creating of symbolic references that is a problem; it is using symbolic references. You use a symbolic reference just like you use a regular reference. So:
$b= $$a;
is where we have a problem. But it is only a problem if $a doesn't contain a real (non-symbolic) reference. That is why use of symbolic references (and not creation of them) is only caught at run time.

Like I said elsewhere, "unsafe" doesn't make a lot of sense to me in discussing strict.pm. strict.pm helps Perl to catch things that are probably simple programmer mistakes. By catching them explicitly, you usually save time in trying to find the mistake and fix it.

        - tye (but my friends call me "Tye")


Comment on (tye)Re: strict.pm
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://61434]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (7)
As of 2014-12-20 15:21 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (96 votes), past polls