Method ToCError

cpp/src/arrow/c/bridge.cc:2184–2200

 private:
  int ToCError(const Status& status) {
    if (ARROW_PREDICT_TRUE(status.ok())) {
      private_data()->last_error_.clear();
      return 0;
    }
    private_data()->last_error_ = status.ToString();
    switch (status.code()) {
      case StatusCode::IOError:
        return EIO;
      case StatusCode::NotImplemented:
        return ENOSYS;
      case StatusCode::OutOfMemory:
        return ENOMEM;
      default:
        return EINVAL;  // Fallback for Invalid, TypeError, etc.
    }
  }

  PrivateData* private_data() {
    return reinterpret_cast<PrivateData*>(stream_->private_data);