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Re: Strange behavior of Point in watches [message #22897 is a reply to message #22891]

Tue, 25 August 2009 20:44

dolik.rce is currently offline

dolik.rce
Messages: 1789
Registered: August 2008
Location: Czech Republic

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dolik.rce@gmail.com

luzr wrote on Tue, 25 August 2009 10:07

It is because correct stack frame for the function is not yet established - gdb reads incorrect values.

If you step inside, you they get corrected.

Thanks for reply. I think I understand what you mean - basically that I asked for the value before entering the function (or it's stack frame, more precisly). BUT: The same problem happens even when stepping inside. Let's take longer function, like:

	virtual void LeftDown(Point p,dword flags){
		DUMP(p);
		p.Offset(10,10);
		Point pt=p;
		DUMP(pt);
		p=pt;
	}

Then at any point in the function p watches yield nonsense. Watches for pt are correct (after it's assignment of course). Does that mean that watching any parameter passed to the function might be incorrect? That would be really confusing, especially for people who doesn't know about it, like me Smile

Smile

Honza

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[Message index]

		Strange behavior of Point in watches By: dolik.rce on Tue, 25 August 2009 09:42
		Re: Strange behavior of Point in watches By: mirek on Tue, 25 August 2009 10:07
		Re: Strange behavior of Point in watches By: dolik.rce on Tue, 25 August 2009 20:44
		Re: Strange behavior of Point in watches By: mirek on Wed, 26 August 2009 09:00
		Re: Strange behavior of Point in watches By: dolik.rce on Thu, 27 August 2009 05:06
		Re: Strange behavior of Point in watches By: dolik.rce on Wed, 02 September 2009 04:47
		Re: Strange behavior of Point in watches By: mirek on Wed, 02 September 2009 17:59
		Re: Strange behavior of Point in watches By: dolik.rce on Wed, 02 September 2009 19:17
		Re: Strange behavior of Point in watches By: mirek on Wed, 02 September 2009 20:43
		Re: Strange behavior of Point in watches By: dolik.rce on Thu, 03 September 2009 10:19
		Re: Strange behavior of Point in watches By: mr_ped on Thu, 03 September 2009 11:11
		Re: Strange behavior of Point in watches By: dolik.rce on Thu, 03 September 2009 19:00
		Re: Strange behavior of Point in watches By: mr_ped on Fri, 04 September 2009 08:32

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