Size of NSArray

Question

When I tried to check the size of NSArray which is declared without any capacity, I found it 4. Now the question is why it is always 4? please help me out to find it.... Thanks

Answer 1

If you're talking about sizeof, it is not the right way to find out how much data an NSArray is holding. Objective-C objects are always accessed through pointers, and the size of a pointer on the iPhone is 4 bytes. That's what sizeof is telling you. To find out how many objects are in an array, ask the array for its count.