428       max_key_(NoKey) { }  in CompactSet()
433       max_key_(compact_set.max_key_) { }  in CompactSet()
439     if (max_key_ == NoKey || max_key_ < key)  in Insert()
440         max_key_ = key;  in Insert()
446         min_key_ = max_key_ = NoKey;  in Erase()
449     } else if (key == max_key_) {  in Erase()
450       --max_key_;  in Erase()
456     min_key_ = max_key_ = NoKey;  in Clear()
461         key < min_key_ || max_key_ < key)  in Find()
468     if (min_key_ == NoKey || key < min_key_ || max_key_ < key) {  in Member()
470     } else if (min_key_ != NoKey && max_key_ + 1 == min_key_ + set_.size()) {  in Member()
485   Key UpperBound() const { return max_key_; }  in UpperBound()
490   Key max_key_;  variable