How to create an empty std::tuple?

Question

I need to construct an std::tuple object so that std::tuple_size<T>::value = 0. Is there a way to do this?

Answer 1

std::tuple<> empty;
using empty_t = std::tuple<>;
auto empty2 = std::make_tuple();
static_assert(std::tuple_size<std::tuple<>>::value == 0);