q_fold.cpp

#include <iostream>
#include <vector>

using namespace std;

template <typename T, typename ... Args> 
vector<T> to_vector(Args && ... args) {
}

template <typename ... Args> 
void print(Args && ... args) {
    
    auto out = [](auto x) {
        cout << x << " ";
    };
    
    (out(args),...);
    
}

 
int main() {
    
    print(1,2,3,"wow");
    
    //auto res = to_vector<int>(1,2,3); // vector<int> res = {1,2,3}
    //print(res[0],res[1]);
    
}

https://coliru.stacked-crooked.com/a/593add9fb8f46436