Objective-C Property Question

[ajtgarber]

Hello all, right now I'm trying to learn Objective-C so that I can (hopefully) eventually make games for the IPhone.
Right now I'm looking at a tutorial for Objective-C, and I saw this code in it:

Code: Select all

#import <Cocoa/Cocoa.h>

@interface Photo : NSObject {
      NSString* caption;
      NSString* photographer;
}
@property (retain) NSString* caption;
@property (retain) NSString* photographer;

@end

The tutorial says that this will retain the new value, but if you were to @synthesize the two, would it also release caption/photographer?

[avansc]

retain increases or sets the reference count to 1, not completely sure.
@synthesize just auto produces setters and getters.

[ajtgarber]

Do the setters release the old object?

[A Person]

I don't ever retain my NSStrings but retain just adds +1 to the reference count so as to prevent EXC_BAD_ACCESS because of missing memory