public static final class ImmutableDoubleArrayMiddleSubListAsListGenerator
      extends TestDoubleListGenerator {
    @Override
    protected List<Double> create(Double[] elements) {
      Double[] prefix = {Double.MIN_VALUE, Double.MAX_VALUE};
      Double[] suffix = {86.0, 99.0};
      Double[] all = concat(concat(prefix, elements), suffix);
      return makeArray(all).subArray(2, elements.length + 2).asList();
    }
  }

  public static final class ImmutableDoubleArrayMiddleSubListAsListGenerator
      extends TestDoubleListGenerator {
    @Override
    protected List<Double> create(Double[] elements) {
      Double[] prefix = {Double.MIN_VALUE, Double.MAX_VALUE};
      Double[] suffix = {86.0, 99.0};
      Double[] all = concat(concat(prefix, elements), suffix);
      return makeArray(all).subArray(2, elements.length + 2).asList();
    }
  }

        }

        double scaledSize = (double) size / unit.bytes();

        if (unit == ScaleUnit.BYTE) {
            builder.append(Long.toString(size));
        } else if (scaledSize < 0.05d || scaledSize >= 10.0d) {
            builder.append(Long.toString(Math.round(scaledSize)));
        } else {
            builder.append(Double.toString(Math.round(scaledSize * 10d) / 10d));
        }

   *     in an {@code int}
   */
  public static double[] concat(double[]... arrays) {
    long length = 0;
    for (double[] array : arrays) {
      length += array.length;
    }
    double[] result = new double[checkNoOverflow(length)];
    int pos = 0;
    for (double[] array : arrays) {
      System.arraycopy(array, 0, result, pos, array.length);
      pos += array.length;
    }

    return new ImmutableDoubleArray(new double[] {e0, e1, e2, e3});
  }

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

  public void testCreateFromSortedSetMultimap() {
    SortedSetMultimap<Double, Double> tree = TreeMultimap.create(KEY_COMPARATOR, VALUE_COMPARATOR);
    tree.put(1.0, 2.0);
    tree.put(2.0, 3.0);
    tree.put(3.0, 4.0);
    tree.put(4.0, 5.0);

    SortedSetMultimap<Double, Double> sorted = Multimaps.unmodifiableSortedSetMultimap(tree);
    TreeMultimap<Double, Double> copyFromSorted = TreeMultimap.create(sorted);

      writeChar(s.charAt(i));
    }
  }

  /**
   * Writes a {@code double} as specified by {@link DataOutputStream#writeDouble(double)}, except
   * using little-endian byte order.
   *
   * @throws IOException if an I/O error occurs
   */
  @Override
  public void writeDouble(double v) throws IOException {
    writeLong(Double.doubleToLongBits(v));
  }

  /**

  private final SpecialRandom random;
  private final double hitRate;
  private final int size;

  private final Set<Element> valuesInSet;
  private final Element[] queries;

  CollectionBenchmarkSampleData(int size) {
    this(true, new SpecialRandom(), 1.0, size);
  }

  CollectionBenchmarkSampleData(
      boolean isUserTypeFast, SpecialRandom random, double hitRate, int size) {
    this.isUserTypeFast = isUserTypeFast;

	// 20.9: Single-Precision Floating-Point Classify Instruction
	FCLASSS	F0, X5					// d31200e0

	// 21.3: Double-Precision Load and Store Instructions
	FLD	(X5), F0				// 07b00200
	FLD	4(X5), F0				// 07b04200
	FSD	F0, (X5)				// 27b00200
	FSD	F0, 4(X5)				// 27b20200

	// 21.4: Double-Precision Floating-Point Computational Instructions
	FADDD	F1, F0, F2				// 53011002
	FSUBD	F1, F0, F2				// 5301100a

  public void testFlatMapToDouble_nullStream() {
    SpliteratorTester.ofDouble(
            () ->
                CollectSpliterators.flatMapToDouble(
                    Arrays.spliterator(new Double[] {1.0, 0.0, 1.0, 2.0, 3.0}),
                    (Double i) -> i == 0.0 ? null : DoubleStream.of(i).spliterator(),
                    Spliterator.SIZED | Spliterator.DISTINCT | Spliterator.NONNULL,
                    4))
        .expect(1.0, 1.0, 2.0, 3.0);