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People have suggested ways of working with numbers. I think it's faster to work with strings in this case (because it reduces greatly the number of calls to sprintf):

my @bytes = map { sprintf('%02X', $_) } 0..255; foreach my $i (@bytes) { foreach my $j (@bytes) { foreach my $k (@bytes) { foreach my $l (@bytes) { foreach my $m (@bytes) { foreach my $n (@bytes) { print("$i$j$k$l$m$n\n"); }}}}}}

Or you could use NestedLoops in Algorithm::Loops:

use Algorithm::Loops qw( NestedLoops ); my @bytes = map { sprintf('%02X', $_) } 0..255; my $num_bytes = 6; NestedLoops( [ ( [ @bytes ] ) x $bytes ], sub { print(join('', @_), "\n"); } );

In reply to Re: Very Large Hex Combinations by ikegami
in thread Very Large Hex Combinations by danambroseUK

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