Created
March 13, 2013 21:24
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NSNULL
nil
NULL Nil
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| NULL (void *)0 literal null value for C pointers | |
| nil (id)0 literal null value for Objective-C objects | |
| Nil (Class)0 literal null value for Objective-C classes | |
| NSNull [NSNull null] singleton object used to represent null |
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