[C++] Template Function _ Any number of parameters

#include<iostream>
 #include<cstdarg>
using namespace std;

template <typename T>
T getResult(int count,...)
{
va_list arg_ptr;// the pointer of arguments list
va_start(arg_ptr, count);// begin from arg_ptr , number = count
T sum(0);
for (int i = 0; i < count; i++)
{
sum += va_arg(arg_ptr,T);
     }
va_end(arg_ptr);// end
return sum;
}
int main()
{
cout << getResult<int>(3,3,4,5) << endl;
system("pause");
}