private final Adder adder;

    FailsToForwardReturnValue(Adder adder) {
      this.adder = adder;
    }

    @Override
    public int add(int a, int b) {
      return adder.add(a, b) + 1;
    }

    @Override
    public String toString() {
      return adder.toString();
    }
  }

  private static class FailsToPropagateException implements Adder {

    private final Adder adder;

    FailsToForwardReturnValue(Adder adder) {
      this.adder = adder;
    }

    @Override
    public int add(int a, int b) {
      return adder.add(a, b) + 1;
    }

    @Override
    public String toString() {
      return adder.toString();
    }
  }

  private static class FailsToPropagateException implements Adder {

  public static InetAddress decrement(InetAddress address) {
    byte[] addr = address.getAddress();
    int i = addr.length - 1;
    while (i >= 0 && addr[i] == (byte) 0x00) {
      addr[i] = (byte) 0xff;
      i--;
    }

    checkArgument(i >= 0, "Decrementing %s would wrap.", address);

    addr[i]--;
    return bytesToInetAddress(addr, null);
  }

  /**

    }

    private static NtlmChallenge interrogate(final CIFSContext tf, final Address addr) throws SmbException {
        final UniAddress dc = new UniAddress(addr);
        try (SmbTransportInternal trans = tf.getTransportPool()
                .getSmbTransport(tf, dc, 0, false, tf.hasDefaultCredentials() && tf.getConfig().isIpcSigningEnforced())

                    request.addr = NbtAddress.getWINSAddress();
                }
            }
        }
    }

    NbtAddress[] getAllByName(final Name name, final InetAddress addr) throws UnknownHostException {
        int n;
        final NameQueryRequest request = new NameQueryRequest(name);
        final NameQueryResponse response = new NameQueryResponse();

        request.addr = addr != null ? addr : NbtAddress.getWINSAddress();

            for (final NbtAddress addr : addrs) {
                CacheEntry entry = (CacheEntry) ADDRESS_CACHE.get(addr.hostName);
                if (entry == null) {
                    entry = new CacheEntry(addr.hostName, addr, expiration);
                    ADDRESS_CACHE.put(addr.hostName, entry);
                } else {
                    entry.address = addr;
                    entry.expiration = expiration;

    }
     */

    Object addr;
    String calledName;

    /**
     * Create a <code>UniAddress</code> by wrapping an {@code InetAddress} or
     * <code>NbtAddress</code>.
     *
     * @param addr the address to wrap
     */

    public UniAddress(final Object addr) {
        if (addr == null) {
            throw new IllegalArgumentException();
        }

    int added = 0;
    boolean interrupted = false;
    try {
      while (added < numElements) {
        // we could rely solely on #poll, but #drainTo might be more efficient when there are
        // multiple elements already available (e.g. LinkedBlockingQueue#drainTo locks only once)
        added += q.drainTo(buffer, numElements - added);

		p.errorf("%s: expected register; found %s", op, obj.Dconv(prog, addr))
	}
	return addr.Reg
}

// getSpecial checks that addr represents a special operand and returns its value.
func (p *Parser) getSpecial(prog *obj.Prog, op obj.As, addr *obj.Addr) int64 {
	if addr.Type != obj.TYPE_SPECIAL || addr.Name != 0 || addr.Reg != 0 || addr.Index != 0 {

	Metrics bool   `msg:"m"`
	NoOp    bool   `msg:"np"`
}

// DiskInfo is an extended type which returns current
// disk usage per path.
// The above means that any added/deleted fields are incompatible.
//
// The above means that any added/deleted fields are incompatible.
//
//msgp:tuple DiskInfo
type DiskInfo struct {
	Total      uint64
	Free       uint64
	Used       uint64
	UsedInodes uint64
	FreeInodes uint64