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Re: Very basic question
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Re: Very basic question


  • Subject: Re: Very basic question
  • From: David Dunham <email@hidden>
  • Date: Thu, 13 May 2010 11:02:29 -0700

On 13 May 2010, at 10:48, Jason Breckenridge wrote:

> I am working on a c++ command-line project with Xcode 3.2.2.  Everything builds fine with no issues.  However, when I debug the executable using GDB, I find that GDB prints a message each time I step over/into/out a line of code, as the transcript below indicates:
>
> I would greatly appreciate an indication of what is going on.  It would appear to be a null pointer somewhere, but I'm not sure under what circumstances GDB would have an issue, since the executable runs to completion with no crashing.


Do you have any breakpoint actions? This looks like "po nil" to me.

(Nothing wrong with nil pointers, you can message them, just don't dereference them!)

David Dunham
Mobile: +1 206 769 2227             http://www.pensee.com/dunham/
Imagination is more important than knowledge. -- Albert Einstein

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