[Qt-interest] show a widget without a main window

[Knowledge Seeker]

Thanks for throwing more light on it.
And I am programming since the days of DOS, in which it definitely was a 
memory leak :-).

So keeping the above in mind what do you say for the example code given at:
http://doc.trolltech.com/4.4/tutorials-tutorial-t4.html

Isn't QPushButton *quit object causing a memory-leak ! ? !

Regards,
Knowledge Seeker.

Malyushytsky, Alex wrote:
> It is at least a bad style to rely on system to reclaim the memory.
> Because not all systems which are currently in use do it.
> Not all system are guarantee to do it in the future.
>
> I believe Windows NT ( 2000 and older ) do reclaim memory, Windows 95 does not.
> I am not sure about Windows 98, but expect it does not either.
> And Windows 98 is even supported by QT 4.
> So it is more than just C++ style problem, it is a leak.
>
> Best regards all.
>
>    Alex
>
>
> -----Original Message-----
> From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Thiago Macieira
> Sent: Sunday, March 08, 2009 4:05 AM
> To: qt-interest at trolltech.com
> Subject: Re: [Qt-interest] show a widget without a main window
>
> Knowledge Seeker wrote:
>   
>> "At that point the operating system will re-claim all memory used by the
>> application. "
>> I dont agree to it, 'heap' if corrupted by user-application, the
>> behavior of o/s is undefined to reclaim it back.
>>     
>
> I'm sorry, but that is incorrect. No matter what the application did to
> its memory space, when the process exits, all of its memory is neatly
> reclaimed by the operating system. There's no margin for undefined
> behaviour: it simply gets inserted back into the many pools of free memory
> pages.
>
> --
> Thiago Macieira - thiago.macieira (AT) nokia.com
>   Senior Product Manager - Nokia, Qt Software
>       Sandakerveien 116, NO-0402 Oslo, Norway
>
>
> ---------------------------------------------------------------------------------------------------
> Weidlinger Associates, Inc. made the following annotations.
>
> "This message and any attachments are solely for the intended recipient and may contain confidential or privileged information. If you are not the intended recipient, any disclosure, copying, use, or distribution of the information included in this message and any attachments is prohibited. If you have received this communication in error, please notify us by reply e-mail and immediately and permanently delete this message and any attachments. Thank you."
>
> "Please consider our environment before printing this email."
>
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest
>