[Foo new] vs [[Foo alloc] init]: was Re: In-loop releasing of objects does not free memory?

FROM : Adam P Jenkins
DATE : Fri Feb 15 21:41:52 2008

On Feb 15, 2008, at 3:07 PM, Keith Duncan wrote:

> I hadn't considered the effect that changing the method would have 
> on shipping apps - I was simply concerned that the function of the 
> method doesn't match it's implied function IMHO.
>

>> for (i = 0; i < 1000; i++) {
>>  NSAutoreleasePool *pool = [NSAutoreleasePool new];
>>  // do some work
>> [pool drain];
>> }

>
> I like this way of doing things. I don't use -new anywhere else in 
> my code but using it for NSAutoreleasePool in a GC app would 
> highlight that the pool is a *special* case. This is the pattern 
> I'll be using, thanks for that!


As far as I understand, [Foo new] is exactly equivalent to [[Foo 
alloc] init], unless Foo has overridden +new to do something else. 
I've never understood why most example code shows [[Foo alloc] init] 
when [Foo new] is shorter, and I always just use +new.  Is there any 
reason not to do that?