Use local instead of my in Perl when using $$ (double dollar sign) inside an enclosed block
I thought I would be all clever and initialize several hash indices at once using the $$ notation in Perl - evaluating strings as variables. Unfortunately using "my" screws this up bigtime.
This must be another circumstance spelled out in the incomprehensible "my" treatise:
http://perldoc.perl.org/perlsub.html#Private-Variables-via-my()
This is one of those solutions that gives you a feeling of dread instead of accomplishment.
This must be another circumstance spelled out in the incomprehensible "my" treatise:
http://perldoc.perl.org/perlsub.html#Private-Variables-via-my()
my %foo;
$foo{'bar'}=1;
foreach $fooDex(qw(foo)){
$$fooDex{'bar'}=2;
}
print $foo{'bar'}."\n"; #prints 1
local %foo;
$foo{'bar'}=1;
foreach $fooDex(qw(foo)){
$$fooDex{'bar'}=2;
}
print $foo{'bar'}."\n"; #prints 2
This is one of those solutions that gives you a feeling of dread instead of accomplishment.
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