ListSets() ([]string, error)
	// GetVersion returns the "X.Y" version string for ipset.
	GetVersion() (string, error)
}

// IPSetCmd represents the ipset util. We use ipset command for ipset execute.
const IPSetCmd = "ipset"

// EntryMemberPattern is the regular expression pattern of ipset member list.
// The raw output of ipset command `ipset list {set}` is similar to,
// Name: foobar
// Type: hash:ip,port
// Revision: 2

	ok = tree.InsertPrefix(ipnet2, 2)
	if ok {
		t.Errorf("should not exist: %s", ipnet2)
	}

	ok = tree.InsertPrefix(ipnet2, 3)
	if !ok {
		t.Errorf("should be updated: %s", ipnet2)
	}

	if v, ok := tree.GetPrefix(ipnet2); !ok || v != 3 {
		t.Errorf("CIDR %s not expected", ipnet2)
	}

	// check longer prefix matching
	ipnet3 := netip.MustParsePrefix("12.1.0.2/32")

inputs-report.png...

 *
 * @author Kevin Bourrillion
 * @since 1.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class Ints extends IntsMethodsForWeb {
  private Ints() {}

  /**
   * The number of bytes required to represent a primitive {@code int} value.
   *
   * <p><b>Java 8+ users:</b> use {@link Integer#BYTES} instead.
   */

 *
 * @author Kevin Bourrillion
 * @since 1.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class Ints extends IntsMethodsForWeb {
  private Ints() {}

  /**
   * The number of bytes required to represent a primitive {@code int} value.
   *
   * <p><b>Java 8+ users:</b> use {@link Integer#BYTES} instead.
   */

ines-course.jpg...

var networkNumberAndMaskTests = []struct {
	in  IPNet
	out IPNet
}{
	{IPNet{IP: v4addr, Mask: v4mask}, IPNet{IP: v4addr, Mask: v4mask}},
	{IPNet{IP: v4addr, Mask: v4mappedv6mask}, IPNet{IP: v4addr, Mask: v4mask}},
	{IPNet{IP: v4mappedv6addr, Mask: v4mappedv6mask}, IPNet{IP: v4addr, Mask: v4mask}},
	{IPNet{IP: v4mappedv6addr, Mask: v6mask}, IPNet{IP: v4addr, Mask: v4maskzero}},

				},
				Clientset: fake.NewSimpleClientset(),
			},
			allocatorParams: CIDRAllocatorParams{
				ClusterCIDRs: func() []*net.IPNet {
					_, clusterCIDR, _ := netutils.ParseCIDRSloppy("127.123.234.0/24")
					return []*net.IPNet{clusterCIDR}
				}(),
				ServiceCIDR: func() *net.IPNet {
					_, serviceCIDR, _ := netutils.ParseCIDRSloppy("127.123.234.0/26")
					return serviceCIDR
				}(),
				SecondaryServiceCIDR: nil,

					addrs: []net.Addr{
						&net.IPNet{IP: netutils.ParseIPSloppy("1.2.3.4"), Mask: net.CIDRMask(30, 32)},
						&net.IPNet{IP: netutils.ParseIPSloppy("2001:db8::1"), Mask: net.CIDRMask(64, 128)},
					},
				},
				{
					itf: net.Interface{Index: 1, MTU: 0, Name: "lo", HardwareAddr: nil, Flags: 0},
					addrs: []net.Addr{
						&net.IPNet{IP: netutils.ParseIPSloppy("127.0.0.1"), Mask: net.CIDRMask(8, 32)},

	// metrics is a metrics recorder that can be disabled
	metrics metricsRecorderInterface
}

var _ Interface = (*Range)(nil)

// New creates a Range over a net.IPNet, calling allocatorFactory to construct the backing store.
func New(cidr *net.IPNet, allocatorFactory allocator.AllocatorWithOffsetFactory) (*Range, error) {
	max := netutils.RangeSize(cidr)
	base := netutils.BigForIP(cidr.IP)
	rangeSpec := cidr.String()