Made zone segments aligned in memory and included a pointer to the zone in the header. Larger objec…

src/list.h

Index: src/list.h
diff --git a/src/list.h b/src/list.h
index 83e5f4594ee5ae0bbdd0ac8d9f7337701c58a0c3..3a53d214ffeb93128236e5a486d73f55a4a7b4c6 100644
--- a/src/list.h
+++ b/src/list.h
@@ -173,6 +173,9 @@ class List {
     length_ = 0;
   }
 
+ protected:
+  T* data() const { return data_; }
+
  private:
   T* data_;
   int capacity_;