Transform tuple type

Question

So I\'m new to boost MPL, and I don\'t know how to use it with standard types.

I want a metafunction that coverts this type:

std::tuple

        

Answer 1

How about the following?

template<typename T> struct transform;
template<typename ...T>
struct transform<std::tuple<T...>> {
  typedef std::tuple<std::function<T(std::tuple<T...>, std::tuple<T...>)>...> type;
};