ewe templates

#include <iostream>

using namespace std;

template<int head, int... tail>
struct total_struct {
    static int const value = head + total_struct<tail...>::value;
};

template<int head>
struct total_struct<head> {
    static int const value = head;
};

template<int... list>
int total()
{
    return total_struct<list...>::value;
}
int main ()
{
    cout << total<1,2,3,4,5,6,7,8,9>() << endl;
}