Print spaces between each element using a fold expression

Question

I am using a fold expression to print elements in a variadic pack, but how do I get a space in between each element?

Currently the output is \"1 234\", the desired outpu

Answer 1

In general, you use recursion for tasks like this.

You have to define what happens when there are 2 or more and 1 elements in the list and recursively fall back to those definitions:

template  struct List;
template  struct List {
    static void print() {
        std::cout << First << " ";
        List::print();
    }
};
template  struct List {
    static void print() {
        std::cout << Last;
    }
};