BloombergLP::bdlc::PackedIntArrayConstIterator::operator‐‐

Decrement this iterator to refer to the previous element in the referenced array and return a reference to this iterator after the decrementation. The returned iterator, it, referencing an element within a PackedIntArray, array, remains valid as long as 0 <= it ‐ array.begin() <= array.length(). The behavior is undefined unless, on entry, 0 < *this ‐ array.begin().