Subj : Re: CUJ Article: Atomic Reference Counting Pointers
To   : comp.programming.threads
From : Alexander Terekhov
Date : Tue Jan 04 2005 10:29 pm


Joseph Seigh wrote:
> 
> On Tue, 04 Jan 2005 19:47:00 +0100, Alexander Terekhov <terekhov@web.de>
> wrote:
> 
> >
> > Joseph Seigh wrote:
> > [...]
> >> If you had real GC (I assume you're referring to Boehm style GC) and its
> >> performance wasn't a problem, why would you use reference counting?
> >
> > You would use atomic<T *> without any reference counting. With real
> > GC, strong thread-safety for shared_ptr<T>-like beasts comes almost
> > "for free" (apart from extra msync which is not needed in the case
> > of basic thread-safety).
> 
> You're not making sense.  Why would you use one form of GC on top of
> another?

Replace "atomic<T *>" above by atomic<gc::uintptr_t> and read it 
again.

Got it?

regards,
alexander.

.