Can you use RTTI to determine a union member?

[Frits van Bommel]

Christian Kamm wrote:
> If A, B, C are classes, you could also check with
> 
> u.a.classinfo is A.classinfo
> u.a.classinfo is B.classinfo
> u.a.classinfo is C.classinfo.

Only if the union never stores references to subclasses.