Method FindHash

cpp/src/parquet/bloom_filter.cc:462–471

}

bool BlockSplitBloomFilter::FindHash(uint64_t hash) const {
  const uint32_t bucket_index = static_cast<uint32_t>(((hash >> 32) * NumBlocks()) >> 32);
  const uint32_t key = static_cast<uint32_t>(hash);
  const uint32_t* bitset32 = reinterpret_cast<const uint32_t*>(data_->data());
  const uint32_t* block = bitset32 + kBitsSetPerBlock * bucket_index;
  static ::arrow::internal::DynamicDispatch<internal::FindHashBlockDynamicFunction>
      dispatch;
  return dispatch(std::span<const uint32_t, kBitsSetPerBlock>(block, kBitsSetPerBlock),
                  std::span<const uint32_t, kBitsSetPerBlock>(SALT), key);
}

void BlockSplitBloomFilter::InsertHashImpl(uint64_t hash) {
  const uint32_t bucket_index = static_cast<uint32_t>(((hash >> 32) * NumBlocks()) >> 32);