Will an 'empty' constructor or destructor do the same thing as the generated one?

Question

Suppose we have a (toy) C++ class such as the following:

class Foo {
    public:
        Foo();
    private:
        int t;
};

Since no des

Answer 1

I'd say best to put the empty declaration, it tells any future maintainers that it wasn't an oversight, and you really did mean to use the default one.