Re: [Foo new] vs [[Foo alloc] init]:

FROM : Bill Bumgarner
DATE : Sun Feb 17 21:06:22 2008

On Feb 17, 2008, at 11:15 AM, Gregory Weston wrote:
> See what you're saying? +alloc *or* +allocWithZone:.
>
> See the subject? +alloc. It does not say anything about 
> +allocWithZone:.
>
> See this code?
>
> @interface MyTest : NSObject
> @end
>
> @implementation MyTest
> + (id)alloc
> {
>  NSLog(@"allocating");
>  return [super alloc];
> }
> @end


You would have to override +allocWithZone: to have any kind of 
reliable behavior.  +alloc is a cover for +allocWithZone: with a NULL 
zone.  Not that you would know that from the documentation, 
unfortunately.

Without assuming anything, you would have to override both allocator 
methods;  +alloc and +allocWithZone:.

b.bum