强制派生类在非抽象基类中重载虚拟方法 [英] Forcing a derived class to overload a virtual method in a non-abstract base class

问题描述

我正在使用简单的克隆模式编写一些代码，如果我能够强制派生类重写该克隆模式，但又保留了使用我的基类的能力，我会很喜欢。 （因此，我不想将clone方法声明为纯虚拟方法。）

I'm writing some code using a simple clone pattern, I'd like it if I were able to force derived classes to override that clone pattern, but retain the ability to use my base class. (So I don't want to declare the clone method to be pure virtual.)

是否有在编译器级别强制实施此限制的方法？

Is there anyway to enforce this restriction at the compiler level?

推荐答案

不幸的是，在C ++中没有办法实现这一目标。您不能强制在子类中重写非抽象方法。但是，我可能会注意到，具体的基类在C ++中应该很少见，您可能需要重新考虑设计。有了有关您总体目标的更多信息，我们也许可以为您的确切需求提供更好的答案。

Unfortunately there is just no way to make this happen in C++. You can't force a non-abstract method to be overridden in child classes. However, I might note that concrete base classes should be fairly rare in C++ and you might want to reconsider your design. With more information about your overall aims we might be able to provide a better answer for your precise needs.

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