* href="https://github.com/google/guava/wiki/PrimitivesExplained">primitive utilities</a>.
 *
 * @author Kevin Bourrillion
 * @since 1.0
 */
@GwtCompatible
public final class Longs {
  private Longs() {}

  /**
   * The number of bytes required to represent a primitive {@code long} value.
   *
   * <p>Prefer {@link Long#BYTES} instead.
   */
  // The constants value gets inlined here.

    assertThat(Longs.lastIndexOf(ARRAY1, 2L)).isEqualTo(-1);
    assertThat(Longs.lastIndexOf(ARRAY234, 1L)).isEqualTo(-1);
    assertThat(Longs.lastIndexOf(new long[] {-1L}, -1L)).isEqualTo(0);
    assertThat(Longs.lastIndexOf(ARRAY234, 2L)).isEqualTo(0);
    assertThat(Longs.lastIndexOf(ARRAY234, 3L)).isEqualTo(1);
    assertThat(Longs.lastIndexOf(ARRAY234, 4L)).isEqualTo(2);

    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();

            ListTestSuiteBuilder.using(new LongsAsListTailSubListGenerator())
                .named("Longs.asList, tail subList"),
            ListTestSuiteBuilder.using(new LongsAsListMiddleSubListGenerator())
                .named("Longs.asList, middle subList"));

    TestSuite suite = new TestSuite();
    for (ListTestSuiteBuilder<Long> builder : builders) {
      suite.addTest(
          builder

  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;
  }

  /**

import static com.google.common.base.Preconditions.checkPositionIndexes;

import com.google.common.primitives.Chars;
import com.google.common.primitives.Ints;
import com.google.common.primitives.Longs;
import com.google.common.primitives.Shorts;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import org.jspecify.annotations.Nullable;

/**

    List<Long> longs = Arrays.asList(0L, 1L, 2L);
    List<Double> doubles = Arrays.asList(0.0, 1.0, 2.0);

    assertThat(Bytes.toArray(bytes)).isEqualTo(array);
    assertThat(Bytes.toArray(shorts)).isEqualTo(array);
    assertThat(Bytes.toArray(ints)).isEqualTo(array);
    assertThat(Bytes.toArray(floats)).isEqualTo(array);
    assertThat(Bytes.toArray(longs)).isEqualTo(array);

      return false;
    }

    @Override
    public int hashCode() {
      return SequentialFunnel.class.hashCode() ^ elementFunnel.hashCode();
    }
  }

  /**
   * Returns a funnel for longs.
   *
   * @since 13.0
   */
  public static Funnel<Long> longFunnel() {
    return LongFunnel.INSTANCE;
  }

  private enum LongFunnel implements Funnel<Long> {
    INSTANCE;

    @Override

      return false;
    }

    @Override
    public int hashCode() {
      return SequentialFunnel.class.hashCode() ^ elementFunnel.hashCode();
    }
  }

  /**
   * Returns a funnel for longs.
   *
   * @since 13.0
   */
  public static Funnel<Long> longFunnel() {
    return LongFunnel.INSTANCE;
  }

  private enum LongFunnel implements Funnel<Long> {
    INSTANCE;

    @Override

  /**
   * Returns statistics over a dataset containing the given values.
   *
   * @param values a series of values, which will be converted to {@code double} values (this may
   *     cause loss of precision for longs of magnitude over 2^53 (slightly over 9e15))
   */
  public static Stats of(long... values) {
    StatsAccumulator accumulator = new StatsAccumulator();
    accumulator.addAll(values);
    return accumulator.snapshot();