Re: NSLogging a memory address
Re: NSLogging a memory address
- Subject: Re: NSLogging a memory address
- From: Shawn Erickson <email@hidden>
- Date: Thu, 17 Jul 2003 07:13:20 -0700
On Wednesday, July 16, 2003, at 08:04 PM, The Amazing Llama wrote:
How can I get NSLog() to output the memory address that a given
pointer is pointing to?
NSLog(@"%@<%x>", object, &object);
doesn't seem to work, as the area in brackets is not the same as the
memory address displayed in the debugger. I know that I've seen this
done, and I know that NSObject does it, but I can't remember the magic
to do it.
In the above object is already a pointer, actually in general you
cannot have Objective-C objects allocated on the stack. So you are
always working with pointers if you are dealing with an Objective-C
object. In other words no need to get the address of it because it is
already an address.
I would use the following...
NSLog(@"%@ <%p>", object, object);
Using %p will insure that if the size of pointers change your output
code will still be happy, at least in theory.
-Shawn
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