Suppress delete-non-virtual-dtor warning when using a protected non-virtual destructor

Question

I have a pure abstract interface class, and a derived class which implements the interface.

struct Foo
{
    virtual void doStuff() = 0;
};

struct Bar : Foo         


        

Answer 1

Marking the class final remove the warning.

struct Bar final : Foo
{
    void doStuff() override { }
};

int main()
{
    Bar* f = new Bar;
    f->doStuff();
    delete f;
}

Demo