虚拟表在内存中的布局? [英] Virtual Table layout in memory?

问题描述

虚拟表如何存储在内存中?他们的布局?

how are virtual tables stored in memory? their layout?

例如

class A{
    public:
         virtual void doSomeWork();
};

class B : public A{
    public:
         virtual void doSomeWork();
};

A类和B类虚拟表在内存中的布局如何?

How will be the layout of virtual tables of class A and class B in memory?

推荐答案

正如其他人所说，这是依赖于编译器的，而不是您日常使用C ++时真正需要考虑的内容.但是，如果您只是对此问题感到好奇，则应该阅读Stan Lippman的书在C ++对象模型内部.

As others have said, this is compiler dependant, and not something that you ever really need to think about in day-to-day use of C++. However, if you are simply curious about the issue, you should read Stan Lippman's book Inside the C++ Object Model.

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