Thank you all for the explanation. After reading over and experiment, I kind of get what you all are saying.I've probably confused myself too much with the dot syntax to use title = @"fdsfd".
So if i have: NSMutableString *title = [[NSString alloc] init]; [title setString: @"test"]; That would be correct and safe? Thank!! John On Thu, May 28, 2009 at 5:30 PM, Kyle Sluder <[email protected]> wrote: > On Thu, May 28, 2009 at 4:57 PM, John Ku <[email protected]> wrote: > > NSString *title = [[NSString alloc] init]; > > title = @"TEST"; > > NSString is immutable, and Objective-C doesn't have operator > overloading. So what you're doing here is creating an empty NSString, > assigning a pointer to it to your title variable, then immediately > assigning a different pointer-to-NSString-constant to the same > variable. = always does assignment in Objective-C; it never means > "tell this object to change its value to what's on the right side of > the equals sign." > > --Kyle Sluder > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
