Can you set an NSInteger as NULL in Objective-C?

Question

I am trying to set an NSInteger to NULL. Though the compiler does not give any error, but I am not sure if this is the right way to do it. Can you set an NSInteger as NULL in ios..? Or is it forbidden for some reason..? Or Should I set it to Nil..? Which is better practice..?

Thanks

Setting it to NULL suggests it's a pointer. If it isn't a pointer I would just set it to 0. — MdaG, May 15 '14 at 14:30
Agree with the above comments, besides what would `NSInteger = NULL` mean? What are you trying to do? — lucianomarisi, May 15 '14 at 14:32
@Sulthan `NSInteger x = NULL;` does not produce any warning. I'm not saying it is the right thing to do. But it shows no warning. — rmaddy, May 15 '14 at 15:55

score 10 · Accepted Answer · answered May 15 '14 at 14:39

I think you are confusing NSInteger with an Objective-C class.

NSInteger is simply a typedefd integer:

#if __LP64__ || NS_BUILD_32_LIKE_64
  typedef long NSInteger;
  typedef unsigned long NSUInteger;
#else
  typedef int NSInteger;
  typedef unsigned int NSUInteger;
#endif

If you want something that holds a number which can be nil then you probably want NSNumber.

Can you set an NSInteger as NULL in Objective-C?

1 Answers1