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my $testString = " 00008008 000000FF 00800000"; $testString =~ s/\s+//g; ... my $maskResult = substr($bits, 1, 1) eq '1'; printf "%s\n--> 2nd bit from left: %d\n", $bits, $maskResult;
my $testString = " 01008008 000000DF 00800000"; my $mask = "42000000 00000020 00000000"; ... $maskResult =~ tr/\0//d; printf "There were %s matching bits.\n", length($maskResult) ? "some": +"no";