I think you can only use class_addIvar() in between corresponding calls to objc_allocateClassPair() and objc_registerClass().
Docs: http://developer.apple.com/library/ios/documentation/cocoa/reference/ObjCRuntimeRef/Reference/reference.html#//apple_ref/doc/uid/TP40001418-CH1g-SW10 Dave On Oct 8, 2010, at 5:39 PM, Rick Mann wrote: > I'm trying to add an ivar to a (sub)class in the base class' +initialize > method. I'm not sure if it's too late to do it at this point or not. If I > can't do it here, i don't know where to make the call. > > I'm calling it like this: > > char const* ivarNameCString = ivarName.UTF8String; > > size_t size = sizeof (NSData*); > uint8_t align = log2(size); > bool success = class_addIvar(self.class, ivarNameCString, size, align, > "@"); > > The values for the parameters end up being: > > ivarNameCString: mOutputDataCacheChannel1 > size: 8 > align: 3 > > The documentation doesn't specify what the last parameter should be, other > than to name it "types." I assumed that was supposed to be a type string, > although I don't know why you would specify more than one. > > Anyway, this returns false, but I have no idea why. > > Can anyone help me out? Thanks! > > -- > Rick > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > 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/davedelong%40me.com > > This email sent to davedel...@me.com
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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 arch...@mail-archive.com
