title: iOS automatic @synthesize without creating an ivar
body: <p>If I have a <code>@property</code> which I didn't want to have backed via an <code>ivar</code> I simply omitted the <code>@synthesize</code> and had manual getters which returned a calculated value.</p>
  
  <p>However, now since Xcode 4.4 if I don't specify <code>@synthesize</code> do compiler will automatically generate it. Does that mean it will also generate an <code>ivar</code> even do I don't need/use it?</p>
  
  <p>I could eventually force to not auto-synthesize by using <code>dynamic</code>. However that would be wrong, since <code>@dynamic</code> is supposed to be used for turning off warnings if <a href="https://stackoverflow.com/a/1160526/184367">getter and setter are implemented somewhere else or during runtime</a>.</p>