🚀 go-pugleaf

Michael Cook <mcook@cognex.com> writes:

>What if I use `dynamic_cast' where `static_cast' would be sufficient?  Is the
>type /still/ required to be polymorphic?  For example, given this:

> struct B {};
> struct D : B {};
> D* d;

>is this expression valid?

> dynamic_cast<B*>(d)

As I understand the DWP, the argument of dynamic_cast need only be
polymorphic in those cases where there is no implicit conversion from
the argument to the requested type. 
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