Method AppendEmptyValues

cpp/src/arrow/array/builder_primitive.h:136–141

\brief Append several empty elements

  /// \brief Append several empty elements
  Status AppendEmptyValues(int64_t length) final {
    ARROW_RETURN_NOT_OK(Reserve(length));
    data_builder_.UnsafeAppend(length, value_type{});  // zero
    UnsafeSetNotNull(length);
    return Status::OK();
  }

  value_type GetValue(int64_t index) const { return data_builder_.data()[index]; }