#include <iostream>
 
    template<class T>
    class Wrapper
    {
    public:
        Wrapper(T t) : t_(t)
        {}
    private:
        T t_;
    };
 
    template<class... Args>
    void g(Args&&...)
    {
        std::cout << __PRETTY_FUNCTION__ << '\n';
    }
 
    template<class... Args>
    void f(Args&&... args)
    {
        std::cout << __PRETTY_FUNCTION__ << '\n';
        g(std::forward<Wrapper<Args>>(args)...);
    }
 
    int main()
    {
        f(1, 2.0, "three");
    }

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