Re: Memory allocation issues with NSObject and NSString
Re: Memory allocation issues with NSObject and NSString
- Subject: Re: Memory allocation issues with NSObject and NSString
- From: Bill Bumgarner <email@hidden>
- Date: Sun, 18 Jan 2009 20:21:11 -0800
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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