/guava/android/guava/src/com/google/common/collect/Range.java
if ( comparator == null) {
if ( values instanceof SortedSet ) {
return contains(input); } public boolean containsAll(Iterable<? extends C> values) { if (Iterables.isEmpty(values)) { return true; } <extra_id_0> SortedSet<? extends C> set = (SortedSet<? extends C>) values; Comparator<?> comparator = set.comparator(); if (Ordering.natural().equals(comparator) || comparator == null) { return contains(set.first()) && contains(set.last()); } }