"Pavol Droba" <droba@topmail.sk> wrote in message news:20041004100730.GY9207@lenin.felcer.sk... | On Mon, Oct 04, 2004 at 02:41:07AM +0200, Thorsten Ottosen wrote: | > However, it is true that one reason for the containers to not allow 0 is to | > avoid troubles with 0 indirection on iterators. | | I think, you are little be contradictive. One place you allow unsave manipulation with | the internal data one the other place you are cautious about the indirection | problems, that can be easily checked. easily? The whole interface is indirected. Doing if( is_null(...) ) in front of every member function call is not going to help anybody. What is most contradictive: 1. to prefer safety in general, but to allow unsafe operations through ptr_iterator 2. to prefer safety of ptr_iterator, but to allow unsafe operations in general ? br Thorsten