use Algorithm::Loops qw( NestedLoops );
my @patterns= qw( 000- 0101 011- 1-0- );
my @bits;
for(  @patterns  ) {
    my $pattern= $_;    # Copy; don't modify @patterns
    my $count= $pattern =~ s/-/%d/g;
    push @bits, NestedLoops(
        [ ([0,1])x$count ],
        sub { sprintf $pattern, @_ },
    );
}
print "@bits\n"
# prints 0000 0001 0110 0111 1000 1001 1100 1101

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If you've got my Hammer.

- tye        

In reply to Re: Working with Binary Numbers (nail) by tye
in thread Working with Binary Numbers by shoness

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