weak_ptr seems to work for poly types

include/cereal/types/polymorphic.hpp

@@ -31,7 +31,6 @@
 #include <cereal/types/memory.hpp>
 #include <cereal/details/polymorphic_impl.hpp>
 #include <cereal/details/util.hpp>
-#include <iostream>
 //! Registers a polymorphic type with cereal
 /*! Polymorphic types must be registered before pointers
     to them can be serialized.  This also assumes that
@@ -99,9 +98,7 @@ namespace cereal
           ar.registerPolymorphicName(nameid, name);
         }
         else
-        {
           name = ar.getPolymorphicName(nameid);
-        }
 
         auto & bindingMap = detail::StaticObject<detail::InputBindingMap<Archive>>::getInstance().map;
 
@@ -152,8 +149,7 @@ namespace cereal
   typename std::enable_if<std::is_polymorphic<T>::value, void>::type
   save( Archive & ar, std::weak_ptr<T> const & ptr )
   {
-    std::cout << "poly weak" << std::endl;
-    auto sptr = ptr.lock();
+    auto const sptr = ptr.lock();
     ar( sptr );
   }
 

sandbox_rtti.cpp

@@ -51,6 +51,8 @@ struct Base
 
 struct MyType : public Base
 {
+  int x;
+
   void foo() {}
 
   template<class Archive>
@@ -69,18 +71,24 @@ CEREAL_REGISTER_TYPE(MyType);
 
 struct YourType : public Base
 {
+  YourType(int xx) : x(xx) {}
+  YourType() : x(-1) {}
+  int x;
+
   void foo() {}
 
   template<class Archive>
     void save(Archive & ar) const
     {
       std::cout << "Saving YourType" << std::endl;
+      ar( x );
     }
 
   template<class Archive>
     void load(Archive & ar)
     {
       std::cout << "Loading YourType" << std::endl;
+      ar( x );
     }
 };
 CEREAL_REGISTER_TYPE(YourType);
@@ -94,7 +102,7 @@ int main()
     cereal::BinaryOutputArchive oarchive(ostream);
 
     std::shared_ptr<Base> ptr1 = std::make_shared<MyType>();
-    std::shared_ptr<Base> ptr2 = std::make_shared<YourType>();
+    std::shared_ptr<Base> ptr2 = std::make_shared<YourType>(33);
     std::unique_ptr<Base> ptr3(new MyType);
     std::weak_ptr<Base>   ptr4 = ptr2;
 
@@ -104,8 +112,6 @@ int main()
     oarchive(ptr4);
   }
 
-
-
   {
     std::ifstream istream("rtti.txt");
     cereal::BinaryInputArchive iarchive(istream);
@@ -121,4 +127,5 @@ int main()
     iarchive(ptr4);
   }
 
+  //std::remove("rtti.txt");
 }