Re: Dynamic Instance Variables, is id the answer?
Re: Dynamic Instance Variables, is id the answer?
- Subject: Re: Dynamic Instance Variables, is id the answer?
- From: Shawn Erickson <email@hidden>
- Date: Sat, 07 Oct 2006 16:20:34 -0700
On Oct 7, 2006, at 4:12 PM, Jordan Evans wrote:
I need my class's instance variables to be dynamic in the sense that
they could be pointers to any kind of data, for example, pointers to
ints, NSObjects, structs, etc.
Is id the answer? I hear it's the "generic type", but haven't seen
good examples of it's use. If so, I'm not sure how to use id (proper,
declaration, initialization, pointing, referencing, etc.).
If not id, then how do I accomplish this dynamic ability for instance
variables to be pointers to any type of data?
@interface DynamoClass : NSObject
{
id pointerOne;
id pointerTwo;
id pointerThree;
}
- (id)initWithString:(NSString *)dataType;
@end
Thanks for any pointers. ;
"id" is a pointer to an Objective-C object of any kind. If you want a
truly generic pointer then void* is your answer.
With that said I am not sure I grasp what you really are trying to
achieve (it sounds problematic).
-Shawn
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