C++11 可变参数模板

C++11-variadic-template

// blog : https://zhulianhua.wordpress.com/2018/04/18/c11-variadic-template/
#include <iostream>
using namespace std;
//递归终止函数
void print()
{
   cout << "empty" << endl;
}

//展开函数
template <class T, class...Args>
void print(T head, Args...   rest)
{
   cout << "parameter " << head << endl;
   print(rest...);
}


template <typename T>
void printOne(T a)
{
    cout << a << endl;
}

template <typename... Args>
void printAll(Args... argsPack)
{
    int res[] = {(printOne(argsPack), 0)...};
}


//size of variadic
template <typename...T>
void varCount(T...argPack)
{
   cout << sizeof...(argPack) << endl;
}

int main(void)
{
   print(1,2,3,4);
   varCount(1, 2.0, "aaa", 'a');
   printAll(1, 2.0, "aaa", 'a', "ABCD");
   return 0;
}