Re: Template Method in multi leveled inheritence

From:

Victor Bazarov <v.Abazarov@comAcast.net>

Newsgroups:

comp.lang.c++

Date:

Tue, 23 Sep 2008 09:56:06 -0400

Message-ID:

<gbashn$eta$1@news.datemas.de>

ManicQin wrote:

Hello All I hope you could help me.

Let's examine the next inheritance tree:

class A
{
public: void init()
{ // Do things
initialiseClass();
}
protected:
virtual void initialiseClass() = 0;
};

class B : public A
{
protected:
virtual void intialiseClass()
{
//Do more things
}
};

What to do with class C that inherits from B and adds more
initialization data?

What would be the problem?

I can call Super but than Template Method loses his meaning...

Uh... Please elaborate.

Is there a solution? (except composition)

If the derived class needs to call the base class' member function to
let it do the base class part of the job, then you have no other way
than to call the "super" (I am guessing you mean this:

     void C::initialiseClass() {
        B::initialiseClass(); // calling the "Super"
        // Do even more things
     }

). I guess you can see that either I don't understand the problem or
there isn't any (and you're imagining it).

V
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