linuxaudio.org

On Thu, 2011-09-01 at 21:29 -0500, Gabriel Beddingfield wrote:

quoted text
> On 09/01/2011 01:18 PM, David Robillard wrote:

> >

> > The main issue you'll find with going the C++/RTTI route is that #2 no

> > longer is possible, since virtual objects are not POD, so you can't

> > safely write them through a ringbuffer (or copy them around manually in

> > general).

> [snip]

>

> Correct me if I'm wrong... but...

>

> >>       class event_two_t : public event_t

> >>       {

> >>       public:

> >>           int type() { return int(EVENT_TWO); }

> >>           uint32_t size() { return sizeof(event_two); }

> >>

> >>           /* event-specific stuff */

> >>       };

>

> The intention of the size() member function is to allow you to memcpy()

> the object without knowing its type.  Is that not enough?

Because it uses inheritance, this object is not POD, so strictly

speaking no.
-dr
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