unique_ptr: is there problems with doing this

[G30GNwbp]

Is there any potential problems with using unique_ptr where a raw pointer is expected?

void bar (int* i)
{
    *i *= *i;
}

int main()
{
    std::unique_ptr<int> up{new int};

    *up = 6;

    bar(&(*up));

    std::cout << *up  << std::endl;
   
    return 0;

}

[Catfish666]

Is there any potential problems with using unique_ptr where a raw pointer is expected?

I think your question is supposed to mean: "is this code OK"?
Technically speaking, yes it is.
But from a style point of view, no it isn't.

http://www.cplusplus.com/reference/memory/unique_ptr/get/

int main()
{
    // ...

    bar(up.get());

    // ...
}

[G30GNwbp]

Thank you for a complete answer.