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Static variable problem
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Dave Saville
Nov 13, 2012, 10:15:21 AM11/13/12
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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?
[T:\tmp]cat try.pl
use strict;
use warnings;
foo("Hello World");
exit;
{
my $bar = 1;
sub foo
{
my $a = shift;
print "$bar $a\n"; <== line 12
return;
}
}
[T:\tmp]try.pl
Use of uninitialized value in concatenation (.) or string at try.pl
line 12.
Hello World
$bar is private to foo - yes? So you can't initialize it?
--
Regards
Dave Saville
posts folder does not have a copy - but I would swear I hit send :-)
Please can someone explain why the following throws an error?
[T:\tmp]cat try.pl
use strict;
use warnings;
foo("Hello World");
exit;
{
my $bar = 1;
sub foo
{
my $a = shift;
print "$bar $a\n"; <== line 12
return;
}
}
[T:\tmp]try.pl
Use of uninitialized value in concatenation (.) or string at try.pl
line 12.
Hello World
$bar is private to foo - yes? So you can't initialize it?
--
Regards
Dave Saville
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