Method add_length

cpp/src/generated/feather_generated.h:321–323

    fbb_.AddElement<int64_t>(PrimitiveArray::VT_OFFSET, offset, 0);
  }
  void add_length(int64_t length) {
    fbb_.AddElement<int64_t>(PrimitiveArray::VT_LENGTH, length, 0);
  }
  void add_null_count(int64_t null_count) {
    fbb_.AddElement<int64_t>(PrimitiveArray::VT_NULL_COUNT, null_count, 0);
  }