Re: [boost] [Gauge for interest] Surrogate template

Subject: Re: [boost] [Gauge for interest] Surrogate template
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2011-02-27 06:47:28

On 27/02/2011 07:56, Alan sinde wrote:

> Example Usage:
>
> class boy
> {
> public:
>      virtual void tell() = 0;
> };
>
> class happy_boy : public boy
> {
>      ...
> };
> class study_boy : public boy
> {
>      ...
> };
>
> void say_hi(boy&  the_boy)
> {
>      the_boy.tell();
> }
>
> int main()
> {
>      std::cout<<  "Hello boost::surrogate!"<<  std::endl;
>      happy_boy Terry;
>      study_boy Thomas;
>
>      std::vector<boost::surrogate<boy>  >  boy_list;
>      boy_list.push_back(boost::surrogate<boy>(Terry));
>      boy_list.push_back(boost::surrogate<boy>(Thomas));
>
>      std::for_each(boy_list.begin(), boy_list.end(), say_hi);
>
>      std::cin.get();
> }

How is that different from clone_ptr and other similar works?