Method encloseAll

guava/src/com/google/common/collect/Range.java:304–322

Returns the minimal range that {@linkplain Range#contains(Comparable) contains} all of the given values. The returned range is {@linkplain BoundType#CLOSED closed} on both ends. @throws ClassCastException if the values are not mutually comparable @throws NoSuchElementException if {@code values} is

(Iterable<C> values)

   * @since 14.0
   */
  public static <C extends Comparable<?>> Range<C> encloseAll(Iterable<C> values) {
    checkNotNull(values);
    if (values instanceof SortedSet) {
      SortedSet<C> set = (SortedSet<C>) values;
      Comparator<?> comparator = set.comparator();
      if (Ordering.<C>natural().equals(comparator) || comparator == null) {
        return closed(set.first(), set.last());
      }
    }
    Iterator<C> valueIterator = values.iterator();
    C min = checkNotNull(valueIterator.next());
    C max = min;
    while (valueIterator.hasNext()) {
      C value = checkNotNull(valueIterator.next());
      min = Ordering.<C>natural().min(min, value);
      max = Ordering.<C>natural().max(max, value);
    }
    return closed(min, max);
  }

  final Cut<C> lowerBound;
  final Cut<C> upperBound;