template< typename Succ>  
stream_record<int>* create_series(int n, Succ f){ 
    return (new stream_record<int>(n)) ->setNext(create_series< Succ>, n, f);

template< typename Record>  
void print_rec(Record* r){ 
        if(r){ 
                std::cout<< r->value<<”, ”; 
                print_rec(r->next()); 
        } 
        else 
                std::cout<<” n”; 
} 
 
int main(int, char**){ 
        record* r1= new record(90, new record(250, new record(1000, 0))); 
        record* r2=transform(r1,