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

Re: Glob error check giving warning

by ysth (Canon)
on Dec 05, 2010 at 08:38 UTC ( #875468=note: print w/replies, xml ) Need Help??

in reply to Glob error check giving warning

By and large, don't use glob() in scalar context. The next time your program executes that line, it will provide the next *.ntp file from the original directory, even if $dir has changed, and after getting each *.ntp file, it will return undef once before restarting. Try this instead.
if ( ! defined( $file ) ) { $file = ( glob(...) )[0]; if ( ! defined( $file ) ) { die "no NTP file\n"; } }
A math joke: r = | |csc(θ)|+|sec(θ)|-||csc(θ)|-|sec(θ)|| |
Online Fortune Cookie Search
Office Space merchandise

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://875468]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (9)
As of 2016-10-27 18:33 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (369 votes). Check out past polls.