* @param a the first {@code float} to compare
   * @param b the second {@code float} to compare
   * @return the result of invoking {@link Float#compare(float, float)}
   */
  public static int compare(float a, float b) {
    return Float.compare(a, b);
  }

  /**
   * Returns {@code true} if {@code value} represents a real number. This is equivalent to, but not
   * necessarily implemented as, {@code !(Float.isInfinite(value) || Float.isNaN(value))}.

          () -> InetAddresses.getCompatIPv4Address((Inet6Address) ip));
    }

    ImmutableSet<String> validCompatAddresses = ImmutableSet.of("::1.2.3.4", "::102:304");
    String compatStr = "1.2.3.4";
    InetAddress compat = InetAddresses.forString(compatStr);

    for (String validCompatAddress : validCompatAddresses) {
      InetAddress ip = InetAddresses.forString(validCompatAddress);

    // Pretend the comparator can compare anything. If it turns out it can't
    // compare a and b, we should get a CCE or NPE on the subsequent line. Only methods
    // that are spec'd to throw CCE and NPE should call this.
    @SuppressWarnings({"unchecked", "nullness"})
    Comparator<@Nullable Object> unsafeComparator = (Comparator<@Nullable Object>) comparator;
    return unsafeComparator.compare(a, b);
  }

                      @Override
                      public int compare(Entry<String, String> left, Entry<String, String> right) {
                        return ComparisonChain.start()
                            .compare(left.getKey(), right.getKey(), Ordering.natural().nullsFirst())
                            .compare(
                                left.getValue(), right.getValue(), Ordering.natural().nullsFirst())

        }
      };

  private static final Ordering<Invokable<?, ?>> BY_NUMBER_OF_PARAMETERS =
      new Ordering<Invokable<?, ?>>() {
        @Override
        public int compare(Invokable<?, ?> left, Invokable<?, ?> right) {
          return Ints.compare(left.getParameters().size(), right.getParameters().size());
        }
      };

   */
  public static boolean isUriInetAddress(String ipString) {
    return forUriStringNoThrow(ipString) != null;
  }

  /**
   * Evaluates whether the argument is an IPv6 "compat" address.
   *
   * <p>An "IPv4 compatible", or "compat", address is one with 96 leading bits of zero, with the
   * remaining 32 bits interpreted as an IPv4 address. These are conventionally represented in

   * Section 7.2.1.2. The iteration order follows the lexicographical order. This means that the
   * first permutation will be in ascending order, and the last will be in descending order.
   *
   * <p>Elements that compare equal are considered equal and no new permutations are created by
   * swapping them.
   *
   * <p>An empty iterable has only one permutation, which is an empty list.
   *

  }

  @Override
  public ContiguousSet<C> subSet(C fromElement, C toElement) {
    checkNotNull(fromElement);
    checkNotNull(toElement);
    checkArgument(comparator().compare(fromElement, toElement) <= 0);
    return subSetImpl(fromElement, true, toElement, false);
  }

  /** @since 12.0 */
  @GwtIncompatible // NavigableSet
  @Override
  public ContiguousSet<C> subSet(

    assertEquals(3, ms.size());
  }

  public void testCustomComparator() throws Exception {
    Comparator<String> comparator =
        new Comparator<String>() {
          @Override
          public int compare(String o1, String o2) {
            return o2.compareTo(o1);
          }
        };
    TreeMultiset<String> ms = TreeMultiset.create(comparator);

    ms.add("b");
    ms.add("c");
    ms.add("a");

        methods,
        new Comparator<Method>() {
          @Override
          public int compare(Method m1, Method m2) {
            int nameComparison = m1.getName().compareTo(m2.getName());
            if (nameComparison != 0) {
              return nameComparison;
            } else {
              return Ints.compare(m1.getParameterTypes().length, m2.getParameterTypes().length);
            }
          }
        });