[boost] Re: Re: problem with shared_ptr

From: Philippe A. Bouchard (philippeb_at_[hidden])
Date: 2003-11-20 01:10:12

Hurd, Matthew wrote:

[...]

>> How could you get rid of cyclic references instantly?
>
> Larry,
>
> Just a small point... You've quoted it so it looks a little like I
> wrote
> this... I didn't.  I too would like to see such code.  In my head it
> seems like detecting cycles in a directed graph.  Not sure how
> efficient
> this is can be...
>
> Philippe?

I like Larry's solution...  Their functionnality are similar though
(proxies, containers, proxy_descriptor, etc.).  Maybe an abstraction could
be made to highlight the common classes.

Mine require 2 counters to handle for each smart pointer but you won't need
any graph (it is mixed with the pointer... no extra allocation).  But I need
to figure out multithread issues before going further.  I can drop in an
example as well as a reference counter maximized for Gcc + Intel (if Boost
would accept -- I could handle its maintenance).

Philippe