I have some classes:

class Transform {
    public:
    virtual auto operator()(everything is ok) const -> void = 0;
};

class FourierTransform : public Transform{
    public:
    virtual auto operator()(type1&, type2&) const -> void = 0; // someone else will override with a real operation
};

class DWTTransform : public Transform{
    protected:
    public:
    auto operator()(type3&, type4&, type5&, type6&) const;
};

I want to be able to have a pointer to the base and be able to use a operation at runtime depending on which class I use, like this:

shared_ptr<Transform>fft = make_shared<IterativeFastFourierTransform>();
fft->operator()(stuff1, stuff2);