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A comment on nil, Nil, NULL, NSNull. Parent comment

Re:nil, Nil, NULL, NSNull by judofyr on Monday January 07, 2013 @01:59PM (#5022510)
> I can't think of a compare method in the Objective-C core lib (the biggest nil-swallowing lib I know of). Does anyone know of one? Would be interesting to see how it's handled and if it causes issues.

Maybe I misunderstood you, but there is plenty of compare:'s in Cocoa: http://cl.ly/image/1a112f1B1W1g.

They all return an enum that's either -1, 0 or 1.

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