Bubble Sort in Objective-C

Bubble Sort in Objective C

- (NSArray *)bubbleSort:(NSMutableArray *)unsorted comparator:(NSComparator)comparator
{
    BOOL done = false;
    
    while (!done) {
        done = true;
        for (int i = 1; i < unsorted.count; i++) {
            if (comparator( [unsorted objectAtIndex:i-1], [unsorted objectAtIndex:i] ) == NSOrderedDescending ) {
                [unsorted exchangeObjectAtIndex:i withObjectAtIndex:i-1];
                done = false;                
            }
        }
        NSLog(@"%@", unsorted);
    }
    
    return unsorted;
}

int main(int argc, const char * argv[]) {
    NSLog(@"Sorted : %@", [self bubbleSort:[NSMutableArray arrayWithArray:a] comparator:^NSComparisonResult(id obj1, id obj2) {
        return [obj1 compare:obj2];
    }]);
}