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

Gerhart

NULL is just 0 which is why there is no issue. – Natalya

nshipster.com/nil – Kep

Setting it to NULL suggests it's a pointer. If it isn't a pointer I would just set it to 0. – Maceio

Agree with the above comments, besides what would NSInteger = NULL mean? What are you trying to do? – Billmyre

@Natalya It will still generate a warning. – Chlorous

@Chlorous NSInteger x = NULL; does not produce any warning. I'm not saying it is the right thing to do. But it shows no warning. – Natalya

Answer 1

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.

Frizzell