Method initialize

lib/NGT/HashBasedBooleanSet.h:48–57

    initialize(bucketSize);
  }
  void initialize(const uint32_t tableSize) {
    _tableSize                = tableSize;
    _mask                     = _tableSize - 1;
    const uint32_t checkValue = _hash1(tableSize);
    if (checkValue != 0) {
      std::cerr << "[WARN] table size is not 2^N :  " << tableSize << std::endl;
    }
    _table = new TYPE[tableSize];
    memset(_table, 0, tableSize * sizeof(TYPE));
  }

  virtual ~HashBasedBooleanSet() {
    delete[] _table;