[C++-sig] Re: Pyste suggestion: handling void * arguments
dave at boost-consulting.com
Sun Nov 2 01:16:18 CET 2003
"Niall Douglas" <s_sourceforge at nedprod.com> writes:
> 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.
No, it's unspecified behavior. Big difference. Check your standard.
More information about the Cplusplus-sig