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Re: Accessor methods and (auto)release <Memory trail>

Subject: Re: Accessor methods and (auto)release <Memory trail>
From: Brant Vasilieff <email@hidden>
Date: Wed, 31 Jul 2002 14:34:12 -0700

On Wednesday, July 31, 2002, at 10:34 AM, cocoa-dev-
email@hidden wrote:

I am concerned about the more subtle case such as:

str = [myWindow title];
...
[myDocument saveDocument];
...
... use str ...

Assuming myDocument is the document in myWindow, a side effect of the
"saveDocument" call might be to release the title you got back in the
first line. A retain/autoreleased return from the first line would
eliminate this potential issue, which could be hard to debug.

Thanks for the clearer example.

I was curious about the difference between returning [[title retain] autorelease] and [[title copy] autorelease].

Does the compiler provide special treatment for retain as a keyword, treating it as an inline macro?
Also, are the retain, release and autorelease messages atomic?

Cheers,
Brant
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