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Re: strings as placeholders

by kwoff (Friar)
on Nov 15, 2001 at 02:11 UTC ( [id://125438]=note: print w/replies, xml ) Need Help??


in reply to strings as placeholders

Look into `perldoc -f vec` and maybe use a bit vector instead. I think it's what you're looking for.

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Re: Re: strings as placeholders
by Anonymous Monk on Nov 15, 2001 at 03:00 UTC
    I read the perldoc yopu suggested and I don't think I'm advanced enough for that yet. Thanks though.
      Here's an example of using vec():
      #!/usr/local/bin/perl -w use strict; # a bit string my $bits = ''; # set some of the bits my @offsets = (0, 2, 4, 6); for my $offset (@offsets) { vec($bits, $offset, 1) = 1; } # test which bits are set my @bits = (0 .. 10); for my $bit (@bits) { if (vec($bits, $bit, 1)) { print "bit $bit is set\n"; } else { print "bit $bit is not set\n"; } } __END__
      $ ./vec-demo.pl bit 0 is set bit 1 is not set bit 2 is set bit 3 is not set bit 4 is set bit 5 is not set bit 6 is set bit 7 is not set bit 8 is not set bit 9 is not set bit 10 is not set

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