*
   * @param value a primitive {@code long} value
   * @return a hash code for the value
   */
  @InlineMe(replacement = "Long.hashCode(value)")
  public static int hashCode(long value) {
    return Long.hashCode(value);
  }

  /**
   * Compares the two specified {@code long} values. The sign of the value returned is the same as
   * that of {@code ((Long) a).compareTo(b)}.
   *

    @Override
    protected List<Long> create(Long[] elements) {
      return asList(elements);
    }
  }

  public static final class LongsAsListHeadSubListGenerator extends TestLongListGenerator {
    @Override
    protected List<Long> create(Long[] elements) {
      Long[] suffix = {Long.MIN_VALUE, Long.MAX_VALUE};
      Long[] all = concat(elements, suffix);

    int len = array.length;
    long[] longArray = new long[len];
    for (int i = 0; i < len; i++) {
      longArray[i] = doubleToRawLongBits(array[i]);
    }
    this.longs = new AtomicLongArray(longArray);
  }

  /**
   * Returns the length of the array.
   *
   * @return the length of the array
   */
  public final int length() {
    return longs.length();
  }

  /**

    Converter<Long, String> reverseConverter = Longs.stringConverter().reverse();
    SerializableTester.reserializeAndAssert(reverseConverter);
  }

  @GwtIncompatible // J2CL generics problem
  public void testSerialization_andThen() {
    Converter<String, Long> converterA = Longs.stringConverter();
    Converter<Long, String> reverseConverter = Longs.stringConverter().reverse();

    testRotate(new long[] {1, 2}, -1, new long[] {2, 1});
    testRotate(new long[] {1, 2}, -2, new long[] {1, 2});
    testRotate(new long[] {1, 2}, 0, new long[] {1, 2});
    testRotate(new long[] {1, 2}, 1, new long[] {2, 1});
    testRotate(new long[] {1, 2}, 2, new long[] {1, 2});
    testRotate(new long[] {1, 2}, 3, new long[] {2, 1});

    testRotate(new long[] {1, 2, 3}, -5, new long[] {3, 1, 2});

  private UnsignedLongs() {}

  public static final long MAX_VALUE = -1L; // Equivalent to 2^64 - 1

  /**
   * A (self-inverse) bijection which converts the ordering on unsigned longs to the ordering on
   * longs, that is, {@code a <= b} as unsigned longs if and only if {@code flip(a) <= flip(b)} as
   * signed longs.
   */
  private static long flip(long a) {
    return a ^ Long.MIN_VALUE;
  }

  /**

    return fmix(h1, Ints.BYTES);
  }

  @Override
  public HashCode hashLong(long input) {
    int low = (int) input;
    int high = (int) (input >>> 32);

    int k1 = mixK1(low);
    int h1 = mixH1(seed, k1);

    k1 = mixK1(high);
    h1 = mixH1(h1, k1);

    return fmix(h1, Longs.BYTES);
  }

  @Override
  public HashCode hashUnencodedChars(CharSequence input) {

    return fmix(h1, Ints.BYTES);
  }

  @Override
  public HashCode hashLong(long input) {
    int low = (int) input;
    int high = (int) (input >>> 32);

    int k1 = mixK1(low);
    int h1 = mixH1(seed, k1);

    k1 = mixK1(high);
    h1 = mixH1(h1, k1);

    return fmix(h1, Longs.BYTES);
  }

  @Override
  public HashCode hashUnencodedChars(CharSequence input) {

    return new ImmutableLongArray(new long[] {e0, e1, e2, e3});
  }

  /** Returns an immutable array containing the given values, in order. */
  public static ImmutableLongArray of(long e0, long e1, long e2, long e3, long e4) {
    return new ImmutableLongArray(new long[] {e0, e1, e2, e3, e4});
  }

  /** Returns an immutable array containing the given values, in order. */

            + Long.numberOfLeadingZeros(~a)
            + Long.numberOfLeadingZeros(b)
            + Long.numberOfLeadingZeros(~b);
    if (leadingZeros > Long.SIZE + 1) {
      return a * b;
    }
    // the return value if we will overflow (which we calculate by overflowing a long :) )
    long limit = Long.MAX_VALUE + ((a ^ b) >>> (Long.SIZE - 1));
    if (leadingZeros < Long.SIZE | (a < 0 & b == Long.MIN_VALUE)) {