[Boost-users] reversible_ptr_container question

I am using ptr_vector and tried to get last element from the vector using rbegin() - which apparently is not supported by ptr_vector unless I missed smth. After some search I found "reversible_ptr_container" in #include I have my doubts if this is the one I should use because it is not easily found in the documentation and buried in the "details". The questions are: 1. For rbegin() relative to ptr_vector - should I employ reversible_ptr_containier? If yes then short example will be highly appreciated. 2. How to get last element from ptr_vector (not using --end())?