fold_expressions.cpp

#include <iostream>
#include <vector>

template<typename Type, typename... Param>
std::vector<Type> to_vector(Param&&... params)
{
    std::vector<Type> vect;
    (vect.push_back(params) ...);

    return vect;
}

template<typename Iter>
void print(const Iter& begin, const Iter& end)
{
    for(auto it = begin; it != end; ++it)
        std::cout << *it << " ";
    std::cout << std::endl;
}

int main(int argc, char* argv[])
{
    auto need_vect = to_vector<double>(1.2, 2.1, 3.0);
    print(need_vect.begin(), need_vect.end());

    return 0;
}