[boost] Re: Problem solved: EBO pessimization in smart_ptr not an issue anymore!

From: David B. Held (dheld_at_[hidden])
Date: 2002-05-03 12:49:22

"Gennadiy Rozental" <rogeeff_at_[hidden]> wrote in message
news:aathh3$nmj$1_at_main.gmane.org...
> [...]
> 1. OptionallyInherit need default constructor
> 2. What to do with smart_ptr( stored_type const& )?
> 3. What to do with swap? Empty classes are not parents anymore
> and can't convert argument. Was inforced to move swap into
> OptionallyInherit. Now empty classes does not really need them.
> 4. As well as any other constructors. But this means that we lost
> conertability checks. For example smart_ptr with disallow_convertion
> will perfectly convert to allow conversion. The same this any other
> undersirable conversion.

I see how c'tors are a problem all around.    I tried suggesting some
alternatives, but the problem is knowing which policies got inherited.
I'm wondering if the OptionallyInherit strategy can be made to work.

Dave