[C++] decltype(auto) C++ 11 feature

1 //C++ 11 feature
template <class T1, class T2>
auto getMultiply(T1 data1, T2 data2) -> decltype(data1*data2)
{
return data1*data2;
}
int main()
{
//cout << getResult<int>(3,3,4,5) << endl;
cout <<getMultiply(12.2, 13.3)<< endl;
cout << typeid(getMultiply(12.2, 13.3)).name() << endl;
system("pause");
}