From kde-devel  Sun Mar 25 01:37:34 2001
From: Patrick Julien <freakmtl () videotron ! ca>
Date: Sun, 25 Mar 2001 01:37:34 +0000
To: kde-devel
Subject: Re: (no subject)
X-MARC-Message: https://marc.info/?l=kde-devel&m=98549207529351

On Saturday 24 March 2001 06:02, Alain wrote:
> Hi all,
>
> I don't understand why this bit of code is refused at _compile_ time:
>
> QLineEdit* pLEdit ; // defined in a UI file with QTDesigner
> [...]
>
> QDoubleValidator*
> pVal=dynamic_cast<QDoubleValidator*>(pLEdit->validator());
>
> can't cast "const class qvalidator*" to "class QDoubleValidator*"

	cuz it's a constant, you could do something like

		const QDoubleValidator *p = dynamic_cast<const QDoubleValidator*>
(pLEdit->validator());

	or this very bad code

	QDoubleValidator *p = 
dynamic_cast<QDoubleValidator*>(const_cast<QValidator*>(pLEdit->validator()));

>
>
> TIA
>
>
> Alain
>
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> >> unsubscribe <<
 
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