#include #include using namespace std; int sum (int a, ...) {int sum = 0, variable = a; va_list list; va_start (list, a); while (variable! = -1) {SUM = variable; variable = va_arg (list, int);} va_end (list); return sum;} void main () {cout << "the sum is" << Sum (1, 2, 3, 4, -1) << Endl;}
