Re: Document empty structures

[Geoffrey Keating <geoffk at apple dot com>]

On Monday, April 14, 2003, at 08:06  AM, Richard Earnshaw wrote:

> > On Fri, 11 Apr 2003, Geoffrey Keating wrote:
> >
> > > This adds documentation of GCC's empty structure extension.
> >
> > I think there needs to be something about how empty structures 
> > interact
> > with initializer lists (when initializing a structure which has as an
> > element an empty structure): do lists of scalars ignore the empty
> > structure, does { } explicitly initialize it, ...?
> >
> > --
> > Joseph S. Myers
> > jsm28 at cam dot ac dot uk
>
> Some more things that also need documenting.

Yes, I agree.  If you find out the answers to any of the questions, 
please provide a patch.

> 3) Do addresses of empty structures compare equal?

That's a logical consequence of them having size 0; if you have

struct empty {};

struct empty empty_array[2];

then (empty_array + 0) == (empty_array + 1)

--
Geoff Keating <geoffk at apple dot com>