int[] xInts;
  int[] yInts;

  long[] xLongs;
  long[] yLongs;

  int[] constant;

  private static final long NONNEGATIVE_LONG_MASK = 0x7FFFFFFFFFFFFFFFL;

  @BeforeExperiment
  void setUp() {
    Random random = new Random(randomSeed);
    xInts = new int[SAMPLE_SIZE];
    yInts = new int[SAMPLE_SIZE];
    xLongs = new long[SAMPLE_SIZE];
    yLongs = new long[SAMPLE_SIZE];
    constant = new int[SAMPLE_SIZE];

  int[] xInts;
  int[] yInts;

  long[] xLongs;
  long[] yLongs;

  int[] constant;

  private static final long NONNEGATIVE_LONG_MASK = 0x7FFFFFFFFFFFFFFFL;

  @BeforeExperiment
  void setUp() {
    Random random = new Random(randomSeed);
    xInts = new int[SAMPLE_SIZE];
    yInts = new int[SAMPLE_SIZE];
    xLongs = new long[SAMPLE_SIZE];
    yLongs = new long[SAMPLE_SIZE];
    constant = new int[SAMPLE_SIZE];

 *
 * @author Kevin Bourrillion
 * @since 1.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class Longs {
  private Longs() {}

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

  @BeforeExperiment
  void setUp() {
    for (int i = 0; i < ARRAY_SIZE; i++) {
      longs[i] = random();
      divisors[i] = randomDivisor(longs[i]);
      decimalStrings[i] = UnsignedLongs.toString(longs[i]);
      binaryStrings[i] = UnsignedLongs.toString(longs[i], 2);
      hexStrings[i] = UnsignedLongs.toString(longs[i], 16);
      prefixedHexStrings[i] = "0x" + hexStrings[i];
    }
  }

  @Benchmark

    assertEquals(1, DiscreteDomain.longs().offset(0L, 1).longValue());
    assertEquals(Long.MAX_VALUE, DiscreteDomain.longs().offset(0L, Long.MAX_VALUE).longValue());
  }

  public void testLongsOffsetExceptions() {
    assertThrows(IllegalArgumentException.class, () -> DiscreteDomain.longs().offset(0L, -1));
    assertThrows(
        IllegalArgumentException.class, () -> DiscreteDomain.longs().offset(Long.MAX_VALUE, 1));
  }

  public void testDivideByZeroThrows() {
    for (long a : TEST_LONGS) {
      try {
        UnsignedLong.fromLongBits(a).dividedBy(UnsignedLong.ZERO);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {
      }
    }
  }

  public void testMod() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        if (b != 0) {

    assertThat(Longs.contains(EMPTY, (long) 1)).isFalse();
    assertThat(Longs.contains(ARRAY1, (long) 2)).isFalse();
    assertThat(Longs.contains(ARRAY234, (long) 1)).isFalse();
    assertThat(Longs.contains(new long[] {(long) -1}, (long) -1)).isTrue();
    assertThat(Longs.contains(ARRAY234, (long) 2)).isTrue();
    assertThat(Longs.contains(ARRAY234, (long) 3)).isTrue();
    assertThat(Longs.contains(ARRAY234, (long) 4)).isTrue();

    assertThat(Longs.contains(EMPTY, (long) 1)).isFalse();
    assertThat(Longs.contains(ARRAY1, (long) 2)).isFalse();
    assertThat(Longs.contains(ARRAY234, (long) 1)).isFalse();
    assertThat(Longs.contains(new long[] {(long) -1}, (long) -1)).isTrue();
    assertThat(Longs.contains(ARRAY234, (long) 2)).isTrue();
    assertThat(Longs.contains(ARRAY234, (long) 3)).isTrue();
    assertThat(Longs.contains(ARRAY234, (long) 4)).isTrue();

    assertEquals(1, DiscreteDomain.longs().offset(0L, 1).longValue());
    assertEquals(Long.MAX_VALUE, DiscreteDomain.longs().offset(0L, Long.MAX_VALUE).longValue());
  }

  public void testLongsOffsetExceptions() {
    assertThrows(IllegalArgumentException.class, () -> DiscreteDomain.longs().offset(0L, -1));
    assertThrows(
        IllegalArgumentException.class, () -> DiscreteDomain.longs().offset(Long.MAX_VALUE, 1));
  }

  // Java 2nd Edition Item 76: Write readObject methods defensively.
  private transient AtomicLongArray longs;

  /**
   * Creates a new {@code AtomicDoubleArray} of the given length, with all elements initially zero.
   *
   * @param length the length of the array
   */
  public AtomicDoubleArray(int length) {
    this.longs = new AtomicLongArray(length);
  }

  /**