Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Re: type glob problem

by rir (Vicar)
on Mar 03, 2009 at 22:11 UTC ( #747918=note: print w/ replies, xml ) Need Help??


in reply to type glob problem

nagalenoj gave you the correct info; I'm just stating it another way. Your my @arra and your *arra are different and unrelated variables. The *arra is a package variable *main::arra which can, as a typeglob, refer to the variable @main::arra but that has nothing to do with a lexical, aka my, variable named @arra.

You are passing an empty typeglob to doublevalue. This demonstrates that you are passing nothing, loosely speaking, to your function:

my @arra = (10,20); print ">@main::arra<$/"; print ">>@arra<<$/";
Update: With your code, use warnings; would have flagged that the name main::arra was used only once, hinting at the problem. With use diagnostics; the message is more confusing as if it were written before lexical variables were added to the language.

Be well,
rir


Comment on Re: type glob problem
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://747918]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (8)
As of 2015-07-04 15:34 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 (60 votes), past polls