Boost.Fusion は、MPL をバリバリ使える Tuple (でいいのかな) #include <iostream> #include <string> #include <boost/fusion/sequence.hpp> #include <boost/fusion/include/vector.hpp> using namespace std; using namespace boost::fusion; int main() { boost::fusion::vector<int, double, string> t(3, 3.14, "Akira"); cout << at_c<0>(t) << endl; // 3 cout << at_c<1>(t) << endl; // 3.14 cout << at_c<2>(t) << endl; // Akira retu