Hi Frank, > You mentioned a vector of references. As far as I [know] this is not possible. You are correct, a std::vector of C++ references is not possible. You would have to use a std::vector of pointers, or a std::vector of smart pointers. (Sometimes smart pointers are called references, just to muddy the water.) For smart pointers, I recommend Boost's smart pointers: http://www.boost.org/doc/libs/1_41_0/libs/smart_ptr/smart_ptr.htm Sincerely, --Eljay
