1 #include <tuple> 2 #include <string> 3 main()4 int main() { 5 std::tuple<> empty; 6 std::tuple<int> one_elt{47}; 7 std::tuple<int, long, std::string> three_elts{1, 47l, "foo"}; 8 return 0; // break here 9 } 10