template <class T>
struct Main
{
    static Main tempFunction(){
       return Main();
    }
};

int main()
{
   Main<int> &mainReference = Main<int>::tempFunction();
}

In function 'int main()':
Line 11: error: invalid initialization of non-const reference of type 'Main<int>&' from a temporary of type 'Main<int>'
compilation terminated due to -Wfatal-errors.