Object "A" inherited object "B". And you need to return the object link "B".

[Adam D. Ruppe]

On Thursday, 6 February 2020 at 12:15:17 UTC, Mihail Lorenko 
wrote:
>>     B* b;

A pointer to a class is a rare thing in B since they are already 
automatic references. Just use `B b;` and ten `b = a` will just 
work.