C ++模板类指针多态 [英] C++ template class pointer polymorphism

问题描述

您好！


我有一个继承自非模板基类的模板类。它具有基类没有的功能（因为基类需要模板参数）。但是我不知道如何在这种情况下通过基类指针正确使用多态。

示例：

Hello!

I have a template class which inherits from a non-template base class. It has functions the base class doesn''t have (because the base class would need the template argument). But I don''t know how to properly use polymorphism though a base class pointer in this case.
Example:

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推荐答案

好的我修改了代码以便编译：

OK I fixed the code so it would compile :

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谢谢！它工作（除了注释掉#include" BaseNonTemplateClass.h"，但无论如何）。但实际上我遇到了另一个问题。我发布的代码是一个简化的测试项目，用于简化具有相同问题的更大项目。我希望我可以转移解决方案，但我不知道如何解决主要问题。我可以发布一些代码，但这将是更具体和更多的代码。

Thanks! It worked (beside the commented out #include "BaseNonTemplateClass.h", but anyway). But actually I ran into another problem. The code I posted was a simplified test project, to simplify a bigger project with the same problem. I hoped I could just transfer the solution, but I don''t know how to solve the main problem. I could post some code, but this is going to be more specific and more code.

这是我的实际项目的重要部分，我有一些类似的结构，我得到了编译器错误。 InputBaseClass.h：

Here are the important parts of my actual project, on which I have some similar structures, and I got a compiler error. InputBaseClass.h:

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