Pimpl copying

[Thiago Macieira]

Peter Kümmel wrote:
>#define Q_DECLARE_PRIVATE(Class) \
>    inline Class##Private* d_func() { return
> reinterpret_cast<Class##Private *>(d_ptr); } \ inline const
> Class##Private* d_func() const { return reinterpret_cast<const
> Class##Private *>(d_ptr); } \ friend class Class##Private;
>
>#define Q_D(Class) Class##Private * const d = d_func()
>
>
>So you get a 'const ClassPrivate*' when you call d_func() in a const
> function, seems I was wrong.

const Q_D(MyClass);

ugly, but it works.

Then again, most const functions don't do much and could just use 
	return d_func()->value;

>BTW the cast is the price they pay for their Private "Hinterwelt", means
> there is a second class hierarchy behind the scene.

Correct :-)

-- 
  Thiago Macieira  -  thiago (AT) macieira.info - thiago (AT) kde.org
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