{
   class Inner : public TObject { };

   class Outer {
      Inner *inner = 0;
   public:
      Outer()
      {
         inner = new Inner();
      }
      Outer(const Outer& other)
      {
         inner = new Inner();
      }
      Outer& operator=(const Outer& other)
      {
         return *this;
      }
      virtual ~Outer()
      {
         delete inner;
      }
   };

   TTree t;
   Outer *in_ptr = 0;

   t.Branch("TheBranch", "Outer", &in_ptr);
   t.Fill();
}