The following code example is taken from the book
C++ Templates - The Complete Guide, 2nd Edition
by David Vandevoorde, Nicolai M. Josuttis, and Douglas Gregor,
Addison-Wesley, 2017
© Copyright David Vandevoorde, Nicolai M. Josuttis, Douglas Gregor 2017
template<typename List>
class PopBackT {
public:
using Type = Reverse<PopFront<Reverse<List>>>;
};
template<typename List>
using PopBack = typename PopBackT<List>::Type;