Function array_data_from

cpp/fory/row/row.cc:177–191

template <typename value_type>
std::shared_ptr<ArrayData> array_data_from(const value_type *data,
                                           int num_elements, int element_size,
                                           const ListTypePtr &type) {
  auto array_data = std::make_shared<ArrayData>(type);
  std::shared_ptr<Buffer> buffer;
  auto header_bytes = ArrayData::calculate_header_in_bytes(num_elements);
  auto size_bytes = header_bytes + num_elements * element_size;
  allocate_buffer(static_cast<int32_t>(size_bytes), &buffer);
  buffer->zero_padding();
  buffer->unsafe_put(0, static_cast<int64_t>(num_elements));
  buffer->copy_from(header_bytes, reinterpret_cast<const uint8_t *>(data), 0,
                    static_cast<int32_t>(num_elements * element_size));
  array_data->point_to(buffer, 0, size_bytes);
  return array_data;
}

std::shared_ptr<ArrayData> ArrayData::from(const std::vector<int32_t> &vec) {
  return array_data_from(vec.data(), static_cast<int>(vec.size()), 4,