Method clear

cpp/fory/util/flat_int_map.h:279–282

  bool empty() const { return size_ == 0; }

  void clear() {
    clear_entries(entries_.get(), capacity_);
    size_ = 0;
  }

  Iterator begin() { return Iterator(entries_.get(), capacity_, 0); }
  Iterator end() { return Iterator(entries_.get(), capacity_, capacity_); }