Can I use an enum as a property in Objective C

Question

I saw it is customed to use a boolean property as a flag. something like that:

@property (nonatomic) BOOL commaAlreadyIntroduced;

I need something like that but with at least 3 or 4 states.

Can I use an enum?

The standalone enum should look like:

typedef enum stackState{
    empty, oneOperand, operandAndOperator, fullStack
}stackState;

duplicate of http://stackoverflow.com/questions/6863167/objective-c-getter-and-setter-properties-for-enum — Parag Bafna, May 29 '12 at 15:02
possible duplicate of http://stackoverflow.com/questions/7126177/using-a-typedef-enum-in-my-object-class — diegoreymendez, May 29 '12 at 15:03

score 63 · Accepted Answer · edited Jul 01 '16 at 22:46

63

Yes, it's not a problem:

@property (nonatomic, assign) stackState yourIvar;

edited Jul 01 '16 at 22:46

Sebyddd

answered May 29 '12 at 14:58

Pfitz

score 8 · Answer 2 · answered Mar 01 '17 at 01:56

8

@property (nonatomic, assign) enum stackState stackStateVar;

Without 'enum' added, my unit tests kept showing errors.

answered Mar 01 '17 at 01:56

this post has been here for 4 years, i don't think any new answers would get much attention. – Ousmane D. Mar 01 '17 at 02:29
Could be because you don't use typedef or NS_ENUM for your enum. – Philipp Hofmann Oct 28 '20 at 09:08

score 3 · Answer 3 · answered May 26 '15 at 21:18

3

@property (nonatomic, assign) enum stackState yourIvar;

(was getting errors until I added enum)

answered May 26 '15 at 21:18

FishStix

3 Answers3