factory method

gistfile1.cpp

class ClassA
{
public:
    void destroy() const
    {
        delete this;
    }

    static ClassA* create()
    {
        return new ClassA;
    }

private:
    ClassA() {}
    ~ClassA() {}
};

int main()
{
    ClassA* ptr = ClassA::create();
    ptr->destroy();

    return 0;
}