[aptitude @ Disallow (assert against) the creation of strong references to widgets with a zero reference count.]

Since widgets are now created with a reference count of 1, it is now an
invariant that every widget with a zero reference count is dead.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/vscreen/vscreen_widget.h b/src/vscreen/vscreen_widget.h
index 6dac4280..22e79041 100644
--- a/src/vscreen/vscreen_widget.h
+++ b/src/vscreen/vscreen_widget.h
@@ -179,6 +179,8 @@ protected:
 public:
   void incref()
   {
+    assert(refcount > 0);
+
     ++refcount;
   }