As bit vectors have already been addressed, this is only in regard to masking.
You will first need to construct a bitstring for the mask.

my $mask = pack("b*","01000000");

Will create a bitstring, least significant bit first, which is the order defined by vec(), with the appropriate mask. Next you supply a bitwise operator: & in your case.


my $result = $mask & $array

Finally, you must check the bit again with vec().

if (vec($result,1,1)){ }; # A exists in slot 1

Unless you've used integers instead of bitstrings, in which case unless all the bits are false the value will be true.

-nuffin
zz zZ Z Z #!perl

In reply to Re: Binary data type? by nothingmuch
in thread Binary data type? by KPeter0314

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