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From: plunket@eidetic.kom (Tom Plunket)
Subject: Re: C++ Class [ not a good answer ]
Date: 1997/03/06
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Date: 1997-03-06T00:00:00+00:00
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On Mon, 03 Mar 1997 13:42:16 -0500, Luis Espinal
<lespin03@solix.fiu.edu> wrote:

> Lock Minh, what you need is a class that has at least one pure virtual 
> function in it. That way, nobody can instantiate an object from it and
> still use it as a base class.
> .ie.
> 
> class MyBase
> {
> 	MyBase(){...}
> 	virtual ~MyBase(){ ... }
> 	virtual void SomeFunction() = 0; // a pure virtual function.
> };
> 
> // you still need to implement the pure virtual func.
> void MyBase::SomeFunction(){}

Can't you just create a pure-virtual class, that doesn't
have pure-virtual member functions (if indeed you don't want
that)?  I thought that that was what class ios did.
Something along the lines of:

class CSomeVirtual
{
    CSomeVirtual();
    ~CSomeVirtual();

    MemberFunction();
    AnotherMemberFunc();
} = 0;

???

Then you're forced to derive from it, but everything is
implemented, too.

-Tom