{PrefixFrom(v6, 0), true},
		{PrefixFrom(v6, 32), true},
		{PrefixFrom(v6, 128), true},
		{PrefixFrom(v6, 129), false},

		{PrefixFrom(Addr{}, -2), false},
		{PrefixFrom(Addr{}, -1), false},
		{PrefixFrom(Addr{}, 0), false},
		{PrefixFrom(Addr{}, 32), false},
		{PrefixFrom(Addr{}, 128), false},
	}
	for _, tt := range tests {
		got := tt.ipp.IsValid()
		if got != tt.want {

func racemapshadow(addr unsafe.Pointer, size uintptr)                       { throw("race") }
func racewritepc(addr unsafe.Pointer, callerpc, pc uintptr)                 { throw("race") }
func racereadpc(addr unsafe.Pointer, callerpc, pc uintptr)                  { throw("race") }
func racereadrangepc(addr unsafe.Pointer, sz, callerpc, pc uintptr)         { throw("race") }

			ipv4: func() []netip.Addr {
				ip, _ := netip.ParseAddr("1.0.0.0")
				ip2, _ := netip.ParseAddr("255.255.255.255")
				return []netip.Addr{ip, ip2}
			},
			ipv6: func() []netip.Addr {
				return []netip.Addr{}
			},
		},
		{
			name: "one ipv6",
			ips:  []string{"::1"},
			ipv4: func() []netip.Addr {
				return []netip.Addr{}
			},
			ipv6: func() []netip.Addr {
				ip, _ := netip.ParseAddr("::1")

pkg net/netip, method (Addr) MarshalBinary() ([]uint8, error)
pkg net/netip, method (Addr) MarshalText() ([]uint8, error)
pkg net/netip, method (Addr) Next() Addr
pkg net/netip, method (Addr) Prefix(int) (Prefix, error)
pkg net/netip, method (Addr) Prev() Addr
pkg net/netip, method (Addr) String() string
pkg net/netip, method (Addr) StringExpanded() string
pkg net/netip, method (Addr) Unmap() Addr

	MOVD	addr+0(FP), RARG0
	MOVD	sz+8(FP), RARG1
	MOVD	sp+16(FP), RARG2
	MOVD	pc+24(FP), RARG3
	// void __asan_write_go(void *addr, uintptr_t sz, void *sp, void *pc);
	MOVD	$__asan_write_go(SB), FARG
	JMP	asancall<>(SB)

// func runtime·asanunpoison(addr unsafe.Pointer, sz uintptr)
TEXT	runtime·asanunpoison(SB), NOSPLIT, $0-16
	MOVD	addr+0(FP), RARG0
	MOVD	sz+8(FP), RARG1
	// void __asan_unpoison_go(void *addr, uintptr_t sz);

		for host := range althosts {
			if _, exists := nt.Table[host]; !exists {
				addresses := make([]string, 0, len(ipv4)+len(ipv6))
				for _, addr := range ipv4 {
					addresses = append(addresses, addr.String())
				}
				for _, addr := range ipv6 {
					addresses = append(addresses, addr.String())
				}

				continue
			}
			ift[n].Index = m.Index
			ift[n].Name = m.Name
			ift[n].Flags = linkFlags(m.Flags)
			if sa, ok := m.Addrs[syscall.RTAX_IFP].(*route.LinkAddr); ok && len(sa.Addr) > 0 {
				ift[n].HardwareAddr = make([]byte, len(sa.Addr))
				copy(ift[n].HardwareAddr, sa.Addr)
			}
			for _, sys := range m.Sys() {
				if imx, ok := sys.(*route.InterfaceMetrics); ok {
					ift[n].MTU = imx.MTU
					break
				}

	racereleaseg(getg(), addr)
}

//go:nosplit
func racereleaseg(gp *g, addr unsafe.Pointer) {
	if getg().raceignore != 0 || !isvalidaddr(addr) {
		return
	}
	racecall(&__tsan_release, gp.racectx, uintptr(addr), 0, 0)
}

//go:nosplit
func racereleaseacquire(addr unsafe.Pointer) {
	racereleaseacquireg(getg(), addr)
}

//go:nosplit

	*addr = new

	unlock()
	return
}

//go:nosplit
func Xchg64(addr *uint64, new uint64) (old uint64) {
	lockAndCheck(addr)

	old = *addr
	*addr = new

	unlock()
	return
}

//go:nosplit
func Cas64(addr *uint64, old, new uint64) (swapped bool) {
	lockAndCheck(addr)

	if (*addr) == old {
		*addr = new
		unlock()
		return true
	}

	unlock()
	return false
}

     * }
     */

    Object addr;
    String calledName;


    /**
     * Create a <tt>UniAddress</tt> by wrapping an <tt>InetAddress</tt> or
     * <tt>NbtAddress</tt>.
     * 
     * @param addr
     *            wrapped address
     */
    public UniAddress ( Object addr ) {
        if ( addr == null ) {
            throw new IllegalArgumentException();
        }