C++ - A nice example measuring funtion execution time with C++11

#include <iostream>
#include <chrono>
template<typename TimeT = std::chrono::milliseconds>
struct measure
{
    template<typename F, typename ...Args>
    static typename TimeT::rep execution(F&& func, Args&&... args)
    {
        auto start = std::chrono::system_clock::now();
        std::forward<decltype(func)>(func)(std::forward<Args>(args)...);
        auto duration = std::chrono::duration_cast< TimeT>
                            (std::chrono::system_clock::now() - start);
        return duration.count();
    }
};
int main() {
    std::cout << measure<>::execution(functor(dummy)) << std::endl;
}