Method Clear

Bcore/src/main/cpp/base/hash_set.h:139–143

If we don't own the data, this will create a new array which owns the data.

  // If we don't own the data, this will create a new array which owns the data.
  void Clear() {
    DeallocateStorage();
    num_elements_ = 0;
    elements_until_expand_ = 0;
  }

  HashSet() : HashSet(kDefaultMinLoadFactor, kDefaultMaxLoadFactor) {}