Problem with NSMutableArray?

Question

i initialize instance variables in .h file,

NSInteger saveValue0, saveValue1, saveValue2, saveValue3;

NSMutableArray *nodeArray;

Now in .m file, in viewWillAppear event,

saveValue0 = 0; 
saveValue1 = 2; 
saveValue2 = 3;
saveValue3 = 0;

nodeArray = [[NSMutableArray alloc] initWithObjects:saveValue0, saveValue1, saveValue2, saveValue3, nil];

But above variable does not inserted in the array. When i trying to see the objects in array using break point, it gives me 0 objects present in nodeArray. Why it will give me 0 objects. Any reason behind that?

user23743 · Accepted Answer · 2011-01-07 09:52:35Z

2

NSInteger is not an object, and you can only store objects in arrays. Use [NSNumber numberWithInteger:0] etc.

answered Jan 7, 2011 at 9:52

user23743

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4 Comments

Mark Bessey Over a year ago

Unsurprisingly, this also generates a compiler warning: "warning: passing argument 1 of 'initWithObjects:' makes pointer from integer without a cast" I wonder why RRB didn't mention that?

Tirth Over a year ago

@Mark Bessey, sorry and yes i forgetting to mention the warning message.

Tirth Over a year ago

Thanks. There is not other way to execute my problem.

user23743 Over a year ago

BTW @RRB, the reason you end up with no objects is that your first number was 0, which got cast to nil. That's the trigger for the end of the list of objects.

Qamar Suleiman · Accepted Answer · 2011-01-07 10:17:24Z

0

NSInteger is just a standard C type.U cannot add those into NSMutableArray

answered Jan 7, 2011 at 10:17

Qamar Suleiman

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