Re: C++ language: Cloneable cl*****

On 5 mai, 15:10, Krzysiek Czain'ski "Czajnik" <1czaj...@[EMAIL PROTECTED]
>
wrote:
> I'm working on a Cloneable concept for C++ cl*****. Here's what I
> think it should be like, however it doesn't compile :?
>
> #include <memory>
>
> class CloneableBase
> {
> public:
>     virtual ~CloneableBase() {}
> private:
>     virtual CloneableBase* doClone() const = 0;
>
> };

That's an ABC, not a concept. And I don't see why you would want to
require a class to be default-constructible for it to be clonable.
Plus, it forces usage of new, so it's definitely not a general-purpose
solution.



-- 
      [ See http://www.gotw.ca/resources/clcm.htm
for info about ]
      [ comp.lang.c++.moderated.    First time posters: Do this! ]