Question

I am checking that the entries in my dictionary are not 0 using NSDictionary count. It works and returns the correct number except on iPad 4.3 Simulator and iPads running iOS 4.3.
Is this a known bug in iOS 4 or am I seeing a side effect of something else I am doing which is iOS 4 incompatible?

edit:

Thank you for your comments so far! I am happy to believe that it’s my code; I’m new to this. Here is a greatly simplified version of my code.

-(NSDictionary *)dictionaryOfSets
{
    if (!_dictionaryOfSets)
    {
        NSOrderedSet* set1 = [[NSOrderedSet alloc] initWithObjects:
            [NSNumber numberWithInt:(1)],
            [NSNumber numberWithInt:(2)],
            [NSNumber numberWithInt:(3)],
            [NSNumber numberWithInt:(4)],
            nil];
        NSOrderedSet* set2 = [[NSOrderedSet alloc] initWithObjects:
            [NSNumber numberWithInt:(9)],
            [NSNumber numberWithInt:(10)],
            [NSNumber numberWithInt:(11)],
            nil];

        _dictionaryOfSets = [[NSDictionary alloc] initWithObjectsAndKeys:
            set1,  [NSNumber numberWithInt:(1)],
            set2,  [NSNumber numberWithInt:(2)],
            nil];

        [set1 release];
        [set2 release];
    }
    return _dictionaryOfSets;
}

Answer 1

After a few weeks of searching and tests I have concluded that NSOrderedSet does not work under iOS 4.3. The same code works under iOS 5.0 and 5.1. I have replaced the NSOrderedSet with NSSet and it now works under iOS 4.3. I am surprised that I haven’t found documentation covering that.