[C++-sig] Re: Pyste suggestion: handling void * arguments

[Niall Douglas]

On 31 Oct 2003 at 20:21, David Abrahams wrote:

> >> I don't know, "undefined behaviour" is never good. Dave, what's
> >> your opinion on this?
> >
> > It's no more undefined than the is_polymorphic trick in type_traits.
> 
> There is absolutely no undefined behavior in is_polymorphic

Where in the C++ standard does it state that a class with a virtual 
function table shall be bigger than one without?

While the chances are that the above will remain true, it can't be 
guaranteed and thus is strictly speaking undefined behaviour.

Cheers,
Niall




-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 208 bytes
Desc: not available
URL: <http://mail.python.org/pipermail/cplusplus-sig/attachments/20031101/1b60b52f/attachment.pgp>