I've gone back to my code and tried to reproduce the error. Now I can't. So I was doing something else stupid that I've since changed.

Now if I do the usual [[NSDate alloc] init] it seems to be behaving as expected. [NSDate date] can generate the error, but that doesn't surprise me.

John

On Sunday Jun 21  2:09 PM, at 2:09 PM, Kyle Sluder wrote:

On Sat, Jun 20, 2009 at 4:52 PM, John Baldwin<johnbaldwinco...@gmail.com > wrote:
I declared a (NSDate *) in my .h file.

Where?  Inside an @implementation, or as a global variable?  If it's a
global variable, you are aware that for every translation unit that
imports your header, you will wind up with a different variable?

Then in my init method, I initialized it to the current date. I tried
various methods, all with the same result:

You're mixing owning methods (alloc, retain) with non-owning methods
(+date).  This indicates that you do not understand Cocoa memory
management.

Then, in a method that was called by an NSTimer object, I tried to use that date as a reference point. But the debugger showed the variable as "out of
scope."

Where is this method defined?  What object was it being invoked on?

Sounds like you need to do a bit of reading.  If you go through the
conceptual docs and still have trouble understanding, post your code
here and we can help you out a bit.

--Kyle Sluder

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