chapter18test3

#include<iostream>
using namespace std;
long double sum = 0.0;
void sum_value(){}
template<typename T>
T sum_value(const T&t)
{
sum += t;
return sum;
}
template<typename T, typename...Args>
T sum_value(const T&t, const Args&...args)
{
sum += t;
sum_value(args...);
return sum;
}
int main()
{
long double num=sum_value(23.14,54.2,'a',90);
cout << num << endl;
return 0;
}