possible structure layout bug
Daniel Jacobowitz
drow@false.org
Thu Jun 10 13:05:00 GMT 2004
On Thu, Jun 10, 2004 at 02:21:27PM +0800, Jie Zhang wrote:
> Daniel Jacobowitz wrote:
>
> >On Wed, Jun 09, 2004 at 02:06:19PM -0700, Richard Henderson wrote:
> >
> >>On Wed, Jun 09, 2004 at 09:47:06PM +0100, Andrew Haley wrote:
> >>
> >>Actually, isn't inheritence is by definition non-POD?
> >
> >
> >Nope. If I've got the right bit of the standard:
> >
> > A POD-struct is an aggregate class that has no non-static data
> > members of type pointer to member, non-POD-struct, non-POD-union (or
> > array of such types) or reference, and has no user-defined copy
> > assignment operator and no user-defined destructor.
> >
> >Base classes are not listed. This matches how I check in GDB for
> >classes to pass by reference.
> >
>
> But it is listed in the definition of aggregate, which is defined by the
> standard as following (8.5.1):
>
> An aggregate is an array or a class with no user-declared
> constructors, no private or protected non-static data members,
> no base classes, and no virtual functions.
Huh. Thanks.
--
Daniel Jacobowitz
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