Hi Monks, I've been having a really hard time getting this code to work right and I'm betting you'll see instantly what I've done wrong. I'm passing an integer representation to a script, packing it as a binary string and then and'ing against a binary switch stored in a hash. However when it gets to the portion that does the &'ing for some reason it appears to be treating the binary packed string as an integer value and is decoding wrong

my %SWITCH = (
   CAT      => 0b00001,
   DOG      => 0b00010,
   HAMSTER  => 0b00100,
   FERRIT   => 0b01000,
   FISH     => 0b10000);
   
my $petInput = 2;
my @PETS;
   
my $binPet = unpack("B32", pack("N", $petInput));
$binPet =~ s/^0+(?=\d)//;   # gets rid of leading zeros

printf "%s%bn%s", "\n", $binPet, "\n";

# at this point $binPet unfortunately contains "0b1010"
# rather than 0b10 as expected, so I'm doing something wrong
# in my pack/unpack apparently

for (keys %SWITCH) {
    if ($binPet & $SWITCH{$_}){push (@PETS, $_);}        
}

foreach (@PETS){print $_."\n";}

[download]

This results in DOG, FERRIT when it should just be DOG. What am I missing here? Thank You Monks!!!!

In reply to having trouble unmasking a binary string by emoss1

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