Uli,
As Matt also points out, the documentation is not always crystal-
clear, so I was simply trying to answer Sam's specific question. Since
not all APIs behave the same way I added the link to the "Memory
Management Programming Guide for Cocoa" page, hoping to help Sam. In
any case, it was never my intention to spread inaccuracies :-)
Cheers,
-- Tito
On 27 Jun 2008, at 6:30 AM, Uli Kusterer wrote:
Am 27.06.2008 um 15:15 schrieb Tito Ciuro:
It's autoreleased.
No, there's no guarantee that it's autoreleased. All that's
guaranteed is that you do not own it. This still means there'll be
no leak and you shouldn't call release on it, but assuming it'
autoreleased would be assuming a longer lifetime than is guaranteed.
If you read the documentation closely, you'll see that it would be
perfectly valid to implement this method so the string goes away
when the original (non-uppercase) string is released.
In the case of uppercaseString, it may actually *be* autoreleased
under the hood, but that's an implementation detail. For example, -
objectAtIndex: in NSArray* is documented the same way as
uppercaseString, but if you release the array itsef, any object you
obtained from the array goes away (unless you or someone else
explicitly retain it).
So, it is NOT guaranteed to be autoreleased, it is just "not owned
by you". Please be careful about spreading inaccuracies not
supported by the documentation.
Cheers,
-- Uli Kusterer
"The Witnesses of TeachText are everywhere..."
http://www.zathras.de
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