Method AppendNulls

cpp/src/arrow/array/builder_primitive.h:112–117

Write nulls as uint8_t* (0 value indicates null) into pre-allocated memory The memory at the corresponding data slot is set to 0 to prevent uninitialized memory access

  /// The memory at the corresponding data slot is set to 0 to prevent
  /// uninitialized memory access
  Status AppendNulls(int64_t length) final {
    ARROW_RETURN_NOT_OK(Reserve(length));
    data_builder_.UnsafeAppend(length, value_type{});  // zero
    UnsafeSetNull(length);
    return Status::OK();
  }

  /// \brief Append a single null element
  Status AppendNull() final {