while (values.hasNext()) {
      double value = values.next().doubleValue();
      count++;
      if (isFinite(value) && isFinite(mean)) {
        // Art of Computer Programming vol. 2, Knuth, 4.2.2, (15)
        mean += (value - mean) / count;
      } else {
        mean = calculateNewMeanNonFinite(mean, value);
      }
    }
    return mean;
  }

  /**

    long count = 1;
    double mean = checkFinite(values[0]);
    for (int index = 1; index < values.length; ++index) {
      checkFinite(values[index]);
      count++;
      // Art of Computer Programming vol. 2, Knuth, 4.2.2, (15)
      mean += (values[index] - mean) / count;
    }
    return mean;
  }

  /**
   * Returns the <a href="http://en.wikipedia.org/wiki/Arithmetic_mean">arithmetic mean</a> of

    long count = 1;
    double mean = checkFinite(values[0]);
    for (int index = 1; index < values.length; ++index) {
      checkFinite(values[index]);
      count++;
      // Art of Computer Programming vol. 2, Knuth, 4.2.2, (15)
      mean += (values[index] - mean) / count;
    }
    return mean;
  }

  /**
   * Returns the <a href="http://en.wikipedia.org/wiki/Arithmetic_mean">arithmetic mean</a> of

			}

			volumesFailedReconstruction := sets.New[string]()
			for _, vol := range rcInstance.volumesFailedReconstruction {
				volumesFailedReconstruction.Insert(vol.volumeSpecName)
			}
			if !reflect.DeepEqual(sets.List(volumesFailedReconstruction), tc.expectedVolumesFailedReconstruction) {

				// which is how integer literals are parsed from JSON for custom resources.
				"double(self.val1) < self.val7",
				"double(self.val2) == self.val7",
				"double(self.val3) > self.val7",

				"self.val1 < int(self.val7)",
				"self.val2 == int(self.val7)",
				"self.val3 > int(self.val7)",

				"double(self.val1) < self.val8",
				"double(self.val2) == self.val8",
				"double(self.val3) > self.val8",

// PluginNameMapper contains utility methods to retrieve names of plugins
// that support a spec, map intree <=> migrated CSI plugin names, etc
type PluginNameMapper interface {
	GetInTreePluginNameFromSpec(pv *v1.PersistentVolume, vol *v1.Volume) (string, error)
	GetCSINameFromInTreeName(pluginName string) (string, error)
}

// PluginManager keeps track of migrated state of in-tree plugins
type PluginManager struct {
	PluginNameMapper

	}
}

// VolumeMapToSlice returns a slice of volumes from a map's values
func VolumeMapToSlice(volumes map[string]v1.Volume) []v1.Volume {
	v := make([]v1.Volume, 0, len(volumes))

	for _, vol := range volumes {
		v = append(v, vol)
	}

	sort.Slice(v, func(i, j int) bool {
		return strings.Compare(v[i].Name, v[j].Name) == -1
	})

	return v
}

	for _, vol := range attachedVolumes {
		if vol.VolumeName == volumeName1 {
			// devicePath + attachability must have been updated from node.status
			assert.True(t, vol.PluginIsAttachable)
			assert.Equal(t, vol.DevicePath, "fake/path")
		}
		if vol.VolumeName == volumeName2 {
			// only attachability was updated from node.status
			assert.False(t, vol.PluginIsAttachable)

// either the deleter plugin or nil when an external deleter is requested.
func (ctrl *PersistentVolumeController) findDeletablePlugin(volume *v1.PersistentVolume) (vol.DeletableVolumePlugin, error) {
	// Find a plugin. Try to find the same plugin that provisioned the volume
	var plugin vol.DeletableVolumePlugin
	if metav1.HasAnnotation(volume.ObjectMeta, storagehelpers.AnnDynamicallyProvisioned) {

// stages.
//
// For more on the actual algorithm, see Z. Wang, "Fast algorithms for the
// discrete W transform and for the discrete Fourier transform", IEEE Trans. on
// ASSP, Vol. ASSP- 32, pp. 803-816, Aug. 1984.
func idct(src *block) {
	// Horizontal 1-D IDCT.
	for y := 0; y < 8; y++ {
		y8 := y * 8
		s := src[y8 : y8+8 : y8+8] // Small cap improves performance, see https://golang.org/issue/27857