#include <iostream> #include <memory> using namespace std; class Temp{ }; template<typename T, typename Arg> shared_ptr<T> factory(Arg arg) { return shared_ptr<T>(new T(arg)); } // template<typename T, typename Arg> // shared_ptr<T> factory(Arg&& arg) // { // return shared_ptr<T>(new T(std::forward<Arg>(arg))); // } int main() { Temp temp = Temp(); shared_ptr<Temp> pointer = factory<Temp>(temp); cout << "Hello World!"; return 0; }