It's just a question of only allowing an object factory to create objects
of the specified type.
/pwm
On Fri, 27 Jun 2008, Robert Alatalo wrote:
> If you make the constructor private then you will need to create a
> friend to invoke it. Why would want to not allow another class to
> include your class as a base class? The best you can really do is
> make all the methods private which would negate most of the reasons
> for using it as a base class. I won't say never, but it's generally
> a bad idea to make all of your constructors private though you can
> make some of them private if you like... but that means your class
> needs to be able to invoke them, either directly or via a public
> static class function.
>
> -Robert
>
> On Fri, Jun 27, 2008 at 6:53 AM, Per Westermark <pw...@ia...> wrote:
> > In some situations it can be an idea to make the constructor private.
> >
> > /pwm
> >
> > On Fri, 27 Jun 2008, Lloyd wrote:
> >
> >> Hi,
> >> Is there any mechanism in C++ which stops others from inheriting a
> >> class?
> >>
> >> Thanks,
> >> Lloyd
> >>
> >>
> >>
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