CODEWITHSUNDEEP
objective-c
Wells
Wells

Reputation: 10979

Objective C: Compiler warning with enum

In myObject.h:

typedef enum {
    GET,
    POST
} HTTPMethods;

And then inside the @interface definition, a property:

@property (nonatomic) HTTPMethods *httpMethod;

In myClass.m, I have the #import of myObject.h and then:

myObject *obj = [[myObject alloc] init];
obj.httpMethod = POST;

This seems to work, but the compiler yells at me:

`Incompatible integer to pointer conversion assigning to 'HTTPMethods *' from 'int'.

Where am I going wrong here?

Upvotes: 3

Views: 1092

Answers (2)

Ajit Satarkar
Ajit Satarkar

Reputation: 717

There's a big hint in the error message!

In C and Objective C, an enum is a user defined data type. You've written HTTPMethods *, which means "a pointer to an enum", whereas it looks like you just wanted an enum.

So change your property to this:

@property (nonatomic) HTTPMethods httpMethod;

For more info, google "C pointers" and you'll find information like this: http://pw1.netcom.com/~tjensen/ptr/pointers.htm

Upvotes: 0

Jody Hagins
Jody Hagins

Reputation: 28419

An enum is a built-in type, and not an object. As such, you probably want to store the integral value itself and not a pointer.

@property (nonatomic, assign) HTTPMethods httpMethod;

Upvotes: 7

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