Garbage collection is an extremely useful programming language feature that is currently absent from C++. The benefits from garbage collection include convenience and safety because the programmer is not responsible for freeing dynamically allocated storage. Many reclamation schemes improve efficiency by compacting objects in memory improving locality and reducing paging. Some reclamation techniques are more efficient than manual reclamation for important classes of data structures. This paper presents a copying collector for C++ that supports polymorphism and does not require indirection through an "object table." This memory reclamation scheme is one of few that is philosophically consistent with the design goals of the C++ programming language: one must not be penalized for features that are not used. This report includes performance measurements from a prototype implementation. Introduction Garbage collection (GC) is a programming environment feature that removes the programmer 's...