[QST]Can I create a null tensor?

[ziyuhuang123]

Hi! I am wondering can I create a null tensor?

I am creating a tensor within a {} but need to use it in another {}. The lifetime of a variable is within a {}. So I need to create the tensor before the first {}, like:

Tensor s;
{
auto s = ......
}

{
func(s, ......)
}

But it seems I can not create like Tensor s ???

[thakkarV]

tensors are non-owning views (unless the layout is fully static). I do not really know what it is that you are trying to achieve here. if you want to pass around the data buffer, just pass around the underlying buffer itself rather than the whole tensor?

[osayamenja]

@ziyuhuang123 If you could somewhat specify your use case, templates may help achieve what you desire. See here

[cloudhan]

You can use IIFE pattern to workaround.

Tensor s = [&]() {
  auto s = ......
  return s;
}();

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[github-actions]

This issue has been labeled inactive-90d due to no recent activity in the past 90 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed.