Simple snippet to convert a vector to a tuple.

vector_to_tuple.hpp

namespace detail {
    template <typename... Args, typename T, size_t... I>
    std::tuple<Args...> vector_to_tuple(const std::vector<T>& t, std::index_sequence<I...>) {
        return std::tuple<Args...>{ t[I]... };
    }
}

template <typename... Args, typename T>
auto vector_to_tuple(const std::vector<T>& t) {
    return detail::vector_to_tuple<Args...>(t, std::make_index_sequence<sizeof...(Args)>());
}