Non-type variadic function templates in C++11

This will print out all elements,
get max could be implemented similarly

template <int N>
void foo(){
  cout << N << endl;
}

template <int N, int M, int ... Rest>
void foo(){
  cout << N << endl;
  foo<M, Rest...>();
}


int main(){
  foo<1, 5, 7>();

  return 0;
}