Re: C++ PATCH: Old ABI compatibility

[Chip Salzenberg <chip at valinux dot com>]

According to Jason Merrill:
> >>>>> Chip Salzenberg <chip@valinux.com> writes:
>  > True, BUT: Is it at least safe to assume that single, non-virtual
>  > inheritance results in no deltas?
> 
> No.  If the base class has no virtual functions, but the derived class
> does, the vptr will be added before the base subobject.

Good point.  Another assumption I didn't think of is that the base
class already has virtuals, and thus a vtbl.
-- 
Chip Salzenberg              - a.k.a. -              <chip@valinux.com>
"I wanted to play hopscotch with the impenetrable mystery of existence,
    but he stepped in a wormhole and had to go in early."  // MST3K