On Jan 18, 2009, at 8:09 PM, Devraj Mukherjee wrote:
1. If I have an NSString and I simply assign it = @"" does that
initialize it or do I have do go NSString *someString = [[NSString
alloc] init];

foo = @""; // foo is a reference to the empty string
foo = [[NSString alloc] init]; // foo is a reference to the empty string

The second is retained. The first is not. The first is a constant string and, thus, -retain/-release is a no-op. An implementation detail to ignore:

foo = [@"" retain];

2. If I have an NSObject class and I define an init messge, do I have
to do self = [super init] or is that not important when extending from
NSObject.

Yes, it is important.

But it does next to nothing.

For now.  Someday, that might change.

b.bum

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