use NetAddr::IP::Lite;
my @masks = 0 .. 32;
$| = 1;
print '1..', scalar @masks, "\n";
my $count = 1;
for my $m (@masks) {
my $ip = new NetAddr::IP::Lite '10.0.0.1', $m;
if ($ip->masklen == $m) {
print "ok ", $count ++, "\n";
}
else {
print "not ok ", $count ++, "\n";
}
}