"Pavel Chikulaev" <pavel.chikulaev@gmail.com> wrote in message news:d48n9s$b75$1@sea.gmane.org... | "Thorsten Ottosen" <nesotto@cs.auc.dk> wrote in message | news:d48kcf$ta$1@sea.gmane.org... | > base::operator==(...) should delegate to a protected or public function. | That won't solve the problem. | > | > | Second if you provide comparasion operators (with concept checking or not) | > | it's quite strange that ptr_containers aren't CopyConstructible and | > Assignable. | > | > not at all. copying by cloning is vastly different from copying; so different | > that those | > two things should not be interchangeable. | | I know. But how else could polymorphic objects to be copied correctly? not understood. | > I looked briefly at it; I recall to think that it was not worth the | > effort. | I don't think so, but ok. | | > I talked with Howard Hinnant about the issue and I think we concluded that | > the introduction of move-semantics and changes to the standard algorithms | > would | > allow us to write a proxy reference for the iterators in pointer containers so | > we can call | > sort() etc. in the usual manner. | I'm really like it. | but when? C++0x. | right now we should use em as members anyway. yes. -Thorsten