variadic_template_demo.cpp

#include <iostream>
#include <cassert>
#include <cstdlib>

int multiply(int x, int y) {
  return x * y;
}

void type_safe_print() {
  std::cout << std::endl;
}

template<class T, class ...Args>
void type_safe_print(T val, Args...args) {
  std::cout << val;
  type_safe_print(args...);
}

int main(int argc, char **argv) {
  assert(argc == 3);

  int a = atoi(argv[1]);
  int b = atoi(argv[2]);

  type_safe_print(a, " x ", b, " = ", multiply(a,b));

  return 0;
}