Greetings: Ok, this a nice feature that just got added to the pointer. I just added support for "void" pointers and works perfectly. We can see the object being deleted correctly after the shifted_ptr<void> is destructed. Furthermore a very nice property shifted_ptr_base has is that it can be casted to a regular pointer and back again to a shifted_ptr_base and the pointee will still be correctly deallocated. I never saw any production code using perfect C++ coding and sometimes it happens we rely on "working undefined behaviors". Multithreaded support has been added but unfortunately I didn't see any function returning the current thread id. Was this disregarded? Finally I am using cleaner preprocessor coding for variadic function templates: http://www.boost-consulting.com/vault/index.php?action=downloadfile&filename=shifted_ptr.zip&directory=Memory& Thanks, -Phil