C++ Base Class Private Destructor: Understanding Restrictions and Alternatives

In C++, a private destructor in a base class means that the destructor can only be accessed and called within the base class itself. It cannot be accessed or called by derived classes or other classes.

Here's an example of a base class 'FBAccessItemViewCell' with a private destructor:

class FBAccessItemViewCell {
private:
    ~FBAccessItemViewCell() {
        // destructor implementation
    }
};

In this case, any derived classes that inherit from 'FBAccessItemViewCell' cannot call the destructor directly. This can prevent derived classes from properly cleaning up resources or performing necessary cleanup operations.

It's important to note that a private destructor is not the same as a virtual destructor. A private destructor cannot be overridden or extended by derived classes, while a virtual destructor can be overridden and called by derived classes.

If you need derived classes to have access to the destructor, you can make the destructor protected instead of private. This will allow derived classes to call the destructor but still prevent other classes from accessing it.