diff --git a/ptrtest.cpp b/ptrtest.cpp
new file mode 100644
index 0000000..27f0b7a
--- /dev/null
+++ b/ptrtest.cpp
@@ -0,0 +1,13 @@
+#include <memory>
+#include <iostream>
+
+#define GenPrint(name) \
+    name() {std::cout <<     #name "()\n";} \
+   ~name() {std::cout << "~" #name "()\n";}
+
+class Base                  {public: GenPrint(Base)};
+class A                     {public: GenPrint(A) std::shared_ptr<Base> base;};
+class Derived : public Base {public: GenPrint(Derived)};
+
+int main() {A a; a.base.reset(new Derived());}
+
diff --git a/ptrtest2.cpp b/ptrtest2.cpp
new file mode 100644
index 0000000..dfbda71
--- /dev/null
+++ b/ptrtest2.cpp
@@ -0,0 +1,13 @@
+#include <memory>
+#include <iostream>
+
+#define GenPrint(name) \
+            name() {std::cout <<     #name "()\n";} \
+   virtual ~name() {std::cout << "~" #name "()\n";}
+
+class Base                  {public: GenPrint(Base)};
+class A                     {public: GenPrint(A) std::unique_ptr<Base> base;};
+class Derived : public Base {public: GenPrint(Derived)};
+
+int main() {A a; a.base.reset(new Derived());}
+