typename Tup> auto my_apply(T&& obj, Tup&& tup) { make_sequence<std::tuple_size_v<std...
问std::make_integer_sequence究竟是如何实现的？EN目前，没有一个主要的编译器标准库提供N3658编译时整...
type_identity<integer_sequence<T,Is...>>,make_integer_sequence_impl<T,I-1,I-1,...
Ints...>;};template<classT,TN>usingmake_integer_sequence=make_integer_sequence_impl<T,N>:...