All the different object has different address.

Author: Wang Jiazi

C++/MemoryModel/EmptyObject.cpp

@@ -0,0 +1,16 @@
+#include <iostream>
+#include <stdio.h>
+using namespace std;
+
+class Empty {};
+
+class Derive: public Empty
+{
+    Empty a;
+};
+
+int main()
+{
+    cout<<sizeof(Empty)<<endl;
+    cout<<sizeof(Derive)<<endl;
+}