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up vote -2 down vote favorite

I have an NSMutableArray with custom objects.

I can addObjects, removeAllObjects and other operations with the array.

However, as soon as I sort the array via sortedArrayUsingDescriptors i cannot perform any operations anymore such as removeallobjects. When debugging the code simply stops at this point.

Does anyone have an explanation ?

share|improve this question
    
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. –  Hot Licks Jan 7 at 0:18
    
what bs answer is that? –  Mozzak Jan 7 at 0:20
2  
It's not a BS answer, it's a closing code. –  Hot Licks Jan 7 at 0:21

1 Answer 1

up vote 1 down vote accepted

sortedArrayUsingDescriptors: returns a NSArray, not NSMutableArray.

you should use sortUsingDescriptors: to sort in place.

NSArray *sortedArray = [array sortedArrayUsingDescriptors:...];

vs.

[mutableArray sortUsingDescriptors:...];
share|improve this answer
    
ahhh this makes total sense. Awesome answer. –  Mozzak Jan 7 at 0:20
    
I will but I have to wait a few more minutes it tells me. –  Mozzak Jan 7 at 0:27
    
I will @Zero. Thanks to everyone helping me out here. –  Mozzak Jan 7 at 0:31

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