[Codename Milan] Variadic templates and nested type names by Brandon Kentel

#include <array>
#include <tuple>

template <typename T, unsigned N>
struct attribute {
    typedef std::array<T, N> type;
};

template <typename Attr, typename... Attrs>
struct attribute_set {
    typedef std::tuple<typename Attr::type, typename Attrs::type...> type;
};

typedef attribute_set<
    attribute<int, 2>,
    attribute<double, 2>,
    attribute<char, 2>
> my_set_t;

int main(int argc, char const* argv[]) {
    my_set_t::type my_set;
    
    return 0;
}