title: Loosing scope of pointer type properties
body: <p>This problem is creeping up in many places in my code,but the general behavior is this:<br>
  There is a view controller and a detailview controller.I create an object of a custom class in the view controller.This object contains pointer type attributes like strings.I use this to initialize a property of the custom class type in the detail view using a setter method.
  But when i try to access these properties in the detail view,i find that the pointer type attributes of the object are either shown as 'out of scope' or their type has changed to some arbitrary type.For example when  i debugged last time , my nsstring properties had become CFSet or something like that.
  <br>can any onne suggest the root cause for this problem?</p>