[boost] Re: Proven ptr<>

From: Philippe A. Bouchard (philippeb_at_[hidden])
Date: 2002-08-11 15:30:10

> As for the implementation, I think there are better approaches that
> would cause no penalty for get().  The usual trick is to use size-
> segregated storage pools set up so that one can get from an interior
> pointer to an object header very quickly.  The Boost pool implementation
> can probably be tweaked for this purpose.  Then a mumble_ptr<T> can just
> store a proper T*, so get() has no overhead, and the arithmetic to
> access the count is paid for only when needed.

Uhh...  pool is an accelerated memory allocator, but still is a memory
allocator.  If we would use the standard malloc(), reconstruction of
containers would be like allocating a separate reference count.  Also get()
is not that slow: 1 more second for 1000 sorts of a 10000 element container.

Philippe A. Bouchard