C++ (Cpp) BitArray::numberOfOnes Examples

Example #1

File: tabletreader.cpp Project: axiak/axedb

uint32_t TabletReader::CountExactByColumn(column_t column, const std::string &value) const {
  rocksdb::Status status;
  ReadStoreKey key{column, value};
  std::string result;

  status = db_->Get(env_->getReadStoreReadOptions(), key.ToSlice(), &result);
  if (status.IsNotFound()) {
    return 0;
  } else if (!status.ok()) {
    throw TabletLevelDbException{status};
  }

  BitArray bitArray;
  bitArray.readStream(result.data(), result.size());

  return bitArray.numberOfOnes();
}