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

Re: Pitfalls met while opening multiple files

by moritz (Cardinal)
on Jul 24, 2011 at 16:45 UTC ( #916424=note: print w/ replies, xml ) Need Help??


in reply to Pitfalls met while opening multiple files

The problem here is that open has a prototype, so it puts the @$_ in scalar context instead of interpolating it into the argument list.

For normal routines that can be circumvented by calling it with an ampersand, &yourroutine(@$_). Unfortunately I don't know how that works with open, neither &CORE::open(@$_) nor &open(@$_) work.

Perl 6 solves this problem by introducing a new syntax for explicitly interpolating arrays and hashes into argument lists, there it would be spelled open |@argumentlist.


Comment on Re: Pitfalls met while opening multiple files
Select or Download Code
Re^2: Pitfalls met while opening multiple files
by armstd (Friar) on Jul 24, 2011 at 23:24 UTC

    Ah yes, that makes perfect sense.

    --Dave

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://916424]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (3)
As of 2015-07-05 22:07 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 (68 votes), past polls