Re: inheritance headache....

"Alf P. Steinbach" <>
Fri, 01 Feb 2008 14:12:09 +0100
* James Kanze:

On Jan 31, 11:12 pm, "Alf P. Steinbach" <> wrote:


class abstractDescription
  AbstractTarget* create(AbstractDescription* desc)

It's clear what you mean, something like

   struct AbstractDescription
       virtual std::auto_ptr<AbstractTarget> create() const = 0;

How is it so clear? Normally, auto_ptr suggests that the caller
will be responsible for deleting the object.

Yes, that was the case.

 And most of the
time I've seen such a pattern used, this simply isn't the
case---the object registers itself in its constructor for some
sort of external events, and deletes itself when the appropriate
event arises.

And that wasn't the case.

Cheers, & hth.,

- Alf

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