BAD_EXC_ACESS

2008-11-20 Thread Richard S. French
My program compiled and ran once. Appeared that possible run away where
table view was just being populated over and over again. I did a force quit.
Now I am getting a debug error of ³BAD_EXC_ACCESS². All that¹s displayed on
the debug screen is greek to me. How do I determine the error and correct?
Thanks.
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Re: BAD_EXC_ACESS

2008-11-20 Thread Gary L. Wade
Maybe the problem is that your last name is French; try launching it in
English rather than in Greek. ;-p

Okay, seriously, maybe you should start by looking at the code in your
NSTableDataSource protocol methods for an infinite loop.

On 11/20/2008 2:28 PM, Richard S. French [EMAIL PROTECTED] wrote:

 My program compiled and ran once. Appeared that possible run away where
 table view was just being populated over and over again. I did a force quit.
 Now I am getting a debug error of ³BAD_EXC_ACCESS². All that¹s displayed on
 the debug screen is greek to me. How do I determine the error and correct?
 Thanks.


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Re: BAD_EXC_ACESS

2008-11-20 Thread Nick Zitzmann


On Nov 20, 2008, at 2:28 PM, Richard S. French wrote:

My program compiled and ran once. Appeared that possible run away  
where
table view was just being populated over and over again. I did a  
force quit.
Now I am getting a debug error of “BAD_EXC_ACCESS”. All that’s  
displayed on
the debug screen is greek to me. How do I determine the error and  
correct?



EXC_BAD_ACCESS is a segmentation fault caused by accessing a bad  
memory address (uninitialized memory, deallocated memory, etc.). Try  
using NSZombieEnabled and break on objc_exception_throw. Search the  
archives for details.


Nick Zitzmann
http://www.chronosnet.com/

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Re: BAD_EXC_ACESS

2008-11-20 Thread Graff

On Nov 20, 2008, at 4:28 PM, Richard S. French wrote:

My program compiled and ran once. Appeared that possible run away  
where
table view was just being populated over and over again. I did a  
force quit.
Now I am getting a debug error of ³BAD_EXC_ACCESS². All that¹s  
displayed on
the debug screen is greek to me. How do I determine the error and  
correct?

Thanks.


Do you mean EXC_BAD_ACCESS?  Here's a relevant bit of Apple  
documentation on it:


http://developer.apple.com/qa/qa2004/qa1367.html

Basically you are probably over-releasing an object.  I would try to  
narrow down where it is occurring by setting some breakpoints and  
stepping through your code until you crash.  You could also try using  
NSLog before you release objects and see which log statement was the  
last one you hit before you crash.


The big headache would be if you are calling release on an object with  
a retain count of 1 that was sent autorelease some time in the past.   
This means that the exception will occur when the autorelease pool is  
drained, basically at some indeterminate point during your program's  
run.  I recommend you look at this article on handling autorelease  
problems:


http://www.cocoadev.com/index.pl?DebuggingAutorelease

Good luck!

- Graff___

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