language: C++11 (gcc-4.7.2)
date: 174 days 17 hours ago
link:
visibility: public 
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#include <iostream>
#include <tuple>
#include <sstream>
 
template<int N>
struct A 
{ 
    std::string data;
    A(std::istream & stream) { stream >> data; }
    friend std::ostream& operator<<(std::ostream & out, A<N> const & a) 
    {
        return out << "A"<<N<<"::data = " << a.data;
    }
};
typedef A<1> A1;
typedef A<2> A2;
 
template<typename ...Args>
void test(std::istream & stream)
{
    std::tuple<Args...> args { Args(stream)... };
    std::cout << std::get<0>(args) << std::endl;
    std::cout << std::get<1>(args) << std::endl;
}
 
int main()
{
    std::stringstream ss("A1 A2");
    test<A1,A2>(ss);
}