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Dave Saville 11-13-2012 03:15 PM

Static variable problem
Apologies if this appears twice but I have not seen it and my sent
posts folder does not have a copy - but I would swear I hit send :-)

Please can someone explain why the following throws an error?

use strict;
use warnings;

foo("Hello World");
my $bar = 1;

sub foo
my $a = shift;
print "$bar $a\n"; <== line 12

Use of uninitialized value in concatenation (.) or string at
line 12.
Hello World

$bar is private to foo - yes? So you can't initialize it?
Dave Saville

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