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//

// Created by light on 19-11-4.

//

#include <iostream>

using namespace std;

void print(const char *s) {

while (*s) {

if (*s == '%' && *(++s) != '%')

throw std::runtime_error("invalid format string: missing arguments");

std::cout << *s++;

}

}

template<typename T, typename... Args>

void print(const char *s, T value, Args... args) {

while (*s) {

if (*s == '%' && *(++s) != '%') {

std::cout << value;

print(++s, args...); // 即便当 *s == 0 也会产生调用，以检测更多的类型参数。

return;

}

std::cout << *s++;

}

throw std::logic_error("extra arguments provided to printf");

}

int main() {

int *pi = new int;

print("%d %s %p %f\n", 15, "Acc", pi, 3.14);

return 0;

}