Re: virtual signal system ?

[Bo Lorentsen <bl lue dk>]

Murray Cumming wrote:
> On Sun, 2006-11-12 at 00:02 +0100, Bo Lorentsen wrote:
> > Paul Pogonyshev wrote:
> > > Bo Lorentsen wrote:
> > > > If a standard widget class holds about 50 unused virtual functions, that 
> > > > is an extra 200 bytes in 32 bit, and 400 in 64 bit. In your case this 
> > > > will ends up using 200 * 2000 = 400 K bytes in 32 bit and 800K in 64 bit.
> > > Mmm, there is one virtual function table per class, not per object...
> > Sorry, you are right ...
>
> Really, I think it's per object. I think that's the point.

I think this is worth looking into ... I am not sure how this is done by 
the (gnu) C++ compiler.

But I will create some more application with Gtkmm, and then I may know 
a little bit more about how it works, and what cost what.

I will return to this subject later :-)

/BL