C++ question

David Faure david at mandrakesoft.com
Wed Sep 25 12:35:27 BST 2002

On Wed, 25 Sep 2002, Michael Goffioul wrote:

> Can I call a pure virtual function in the constructor of the abstract
> class? That is
> class A
> {
> public:
>    A() { func(); }
>    virtual void func() = 0;
> };

Impossible. When A is built, there is not yet a reimplementation of func()
registered in the vtable. This is a good way to see the nice "pure virtual
method called".
You have to simplify the constructors, and add some virtual init() that
does the job, for instance.


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