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The A::PrintMe function doesn't access class members and isn't virtual so the this pointer isn't used. This is perfectly legal.
Steve
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well, I learn something everyday.
A* p = NULL;
p->PrintMe();
How does "it" know what method to call if p == NULL ?
I would have assumed that accessing a NULL point itself would have at least throw an exception at least.
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From the following:
- The type of the pointer (A*).
- The name of the function.
The fact that the function isn't virtual means this is all the infomation needed.
Steve
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see this[^]
It seems me, in the forum guidelines by chris, i found some thing like "check previous recent posts before asking questions", but its not there now.
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Calling a method on p doesn't actually dereference p, it just sets this to the value of p. If PrintMe() dereferenced this, for example accessing non-static data members, then the code would crash.
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Hi,
First of all I am very sorry as I am asking question not related to this group.
Does anybody know where are the next parts of the article "ATL Under the Hood Part 5". In the ATL series.
Or
I want to create an simple ATL COM Project from scratch, without using Appwizard.
Does anybody know about such articles?
Thanks in advance.
modified on Wednesday, March 12, 2008 2:26 AM
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If parts 1-4 have the same author, then click on his name to see all articles written by him (or her).
If you can't see part 5, then maybe it is not written (yet).
Iain.
Iain Clarke appears because CPallini still cares.
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In my application some operations will run in worker therad for 15 time without crash.
But when same code will run for 30 times the application will crash.
Let me know the reasons behind this crash.
lavatema
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What does "crash" mean?
You can't find the offending line of code running the app in the debugger??
Mark
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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lavate malllik wrote: will run in worker therad for 15 time without crash.
But when same code will run for 30 times the application will crash.
some thing strange in between, if it crashes at 30th time, then the application runs without crash for 29 times not 15 times. 
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So, to fix it, NEVER let a user run it more than 29 times?
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://www.codeproject.com/script/Forums/Images/coffee.gif)
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yes you are correct.
5! for your solution
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Hehe A five for you for giving me the idea 
Mark Salsbery
Microsoft MVP - Visual C++
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lavate wrote: will run in worker therad for 15 time without crash.
But when same code will run for 30 times the application will crash.
Rajkumar R wrote: some thing strange in between, if it crashes at 30th time, then the application runs without crash for 29 times not 15 times.
Don't worry! It's pentadecimal[^]. So you saw the OP said:
15 time (singular) and
30 times (plural)
Maxwell Chen
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Poll: Would you consider a live streaming comedy. Star:- Rajkumar R, Mark and guest star - Maxwell Chen!
What the members think ... drum rolls ...100%. IT'S A HIT!!! Really cool guyz  An extra 5 bonus for you all.
Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.
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i vote for rajkumar .. my personal fav!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/codeProject$$>
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Rajkumar R wrote: some thing strange in between, if it crashes at 30th time, then the application runs without crash for 29 times not 15 times
I am sure this problem due non usage of proper sync locks!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/codeProject$$>
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lavate malllik wrote: Let me know the reasons behind this crash.
The programmer.
Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP
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Rajesh R Subramanian wrote: The programmer.
windows!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/codeProject$$>
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ThatsAlok wrote: windows!
I'll blame Global Warming. 
Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP
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My goodness!! I did not know global warming was that serious!!
Wamuti: Any man can be an island, but islands to need water around them!
Edmund Burke: No one could make a greater mistake than he who did nothing because he could do only a little.
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Rajesh R Subramanian wrote: I'll blame Global Warming.
Sssh! Lalu could read this!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/codeProject$$>
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So what happens if you skip the 30th iteration, and jump to the 31st iteration instead?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Ohhhh...now THAT'S thinking outside the box
Mark Salsbery
Microsoft MVP - Visual C++
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