"Howard Hinnant" <hinnant@twcny.rr.com> wrote in message news:83B293FA-1013-11D9-9D49-003065D18932@twcny.rr.com... | On Sep 26, 2004, at 10:28 AM, Pavol Droba wrote: | container<sole_ptr<T>> will have the same overhead as that demonstrated | in the Smart Container library. A big difference will be that | iterators into the container will dereference smart pointers, and not | the pointed-to elements. I also anticipate C++0X will contain some | really slick indirect_iterator types that will transform | container<sole_ptr<T>>::iterator appropriately. These will likely be | heavily influenced by (if not based on) the Boost.Iterator Library. This brings up a question: how should these iterators cope with nulls as you intend sole_ptr<T> to allow? Afterall, if the iterator is indirected it needs to assume non-null values. br Thorsten