On Apr 16, 2012, at 8:10 PM, Graham Cox <graham....@bigpond.com> wrote:
> Memory management is really quite straightforward, and consists of a few
> rules that everything follows (the framework invariably does; your code
> should do).
If that were true, then ARC would not have been necessary.
> On 16/04/2012, at 7:42 PM, Patrick Robertson wrote:
>
>> so are these temp objects created during the enumeration released
>> automatically at the end of the loop, or is it work wrapping the whole
>> thing in an autoreleasepool?
No implicit pools are created.
When it comes to autorelease pools, we primarily see them as a performance
tuning technique. If your code is not running into performance problems and if
the documentation does not explicitly tell your code to use a pool (say for use
with NSThread), then please don't worry about it.
And if you are running into performance problems on a per iteration basis, then
please remember that the rules of C allow you to write code like this to avoid
double indenting:
for (id anObject in anArray) @autoreleasepool {
// do stuff
}
do @autoreleasepool {
// do stuff
} while (x);
while (x) @autoreleasepool {
// do stuff
}
davez
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