2009-02-05  Chris Fairles  <cfairles@gcc.gnu.org>

        * include/std/tuple (_Head_base<>::_Head_base(_UHead&&)): Formatting.
        (_Head_base<>::__swap_impl): Rename to _M_swap_impl.
        (_Tuple_impl<>::__swap_impl): Likewise and make protected to avoid
        exposing it in public std::tuple interface.

From-SVN: r143979