auto_ptr for VS 2005
If you are using VS 2005, you probably already know that auto_ptr is broken in VS 2005. Refer comment section of below page for more details: http://msdn.microsoft.com/en-us/library/ew3fk483%28v=vs.80%29.aspx
If for some reason you cannot use boost smart pointer or shift to VS 2008 and above, you can use this implementation of auto_ptr.
ManagedPtrList is derived from std::list which does not have virtual destructor. Hence assigning ManagedPtrList to std::list to free the nodes should be avoided. To keep the rule simple: Avoid assigning ManagedPtrList to std::list. For more information, read guideline #4 of: http://www.gotw.ca/publications/mill18.htm