Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

Re: concatenating partially uninitialized values

by Arguile (Hermit)
on Jun 18, 2003 at 18:05 UTC ( #266935=note: print w/ replies, xml ) Need Help??

in reply to concatenating partially uninitialized values

If you know that you specifically want to use uninitialised variables, turn that warning off. It’s meant to help, not hinder you.

no warnings qw(uninitialized);

In this case, your two code snippets produce different results (the hyphen-minus is omitted in the second) so I wouldn’t suggest this technique. Be aware it’s there if you need it though.


Before 5.6 this was only possible using $^W which turned off all warnings. Be very careful if you do that.

use warnings; # This will generate a warning. print undef; { no warnings qw(uninitialized); # This won't. print undef; }

See Also

Comment on Re: concatenating partially uninitialized values
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://266935]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (6)
As of 2015-12-01 07:29 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (795 votes), past polls