[boost] Re: versioned_ptr<T>: wish/announcement

From: Greg Colvin (gcolvin_at_[hidden])
Date: 1999-09-17 15:30:23

From: Andy Glew <glew_at_[hidden]>
> > Actually, the indirection didn't work, because you can't safely go from
> > Derived* to void* to Base*,  so my current implementation does without
> > it.  The cost is that weak_ptr is slower.
> 
> May I take a look at your current implementation?

Sure.

> Is it in Boost?

It's not ready for prime time, but I'll email you a copy when I
get home next week.
 
> Q: how do you get a non-intrusive implementation without
> the level of indirection?  Do you use a global registry?

No.  The weak_ptr still has to indirect and check the counters,
but the counted_ptr doesn't.