Method export_ptr

tiledb/sm/cpp_api/arrow_io_impl.h:574–579

  }

  void export_ptr(ArrowArray* out_array) {
    iassert(out_array != nullptr);
    memcpy(out_array, array_, sizeof(ArrowArray));
    std::free(array_);
    array_ = nullptr;
  }

  ArrowArray* ptr() const {
    passert(array_ != nullptr);