Variadic Templates playground

print_counted.cpp

#include <iostream>

template<typename T>
void print_counted_acc(size_t acc, T head) {
	std::cout << acc << ' ' << head << '\n';
}

template<typename T, typename... Args>
void print_counted_acc(size_t acc, T head, Args... tail) {
	std::cout << acc << ' ' << head << '\n';
	print_counted_acc(acc + 1, tail...);
}

template<typename... Args>
void print_counted(Args... args) {
	print_counted_acc(0, args...);
}

void test() {
	print_counted(5, 4, -1, 0, 123);
	print_counted(true, 4, -1, "Hello, World!");
}

auto main() -> int {
	test();
}