[boost] [circular_buffer] encapsulation problems

Hi Jan, Have you ever seen http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2007/n2212.html ? I'm implementing some simple map data-struture as a wrapper around boost::circular_buffer<boost::optional<Pod>>. In my copy-constructor I want to memcpy into a newly created circular_buffer of the correct size, but that is not really possible. In n2212 I outline a solution to this problem. Would you consider to implement them? I think the functions will also make circular_buffer more efficient for use in MPI and Asio. -Thorsten