    trait to work, and where attempting to instantiate the trait will cause
          compiler errors (see bug reports <a href="https://svn.boost.org/trac/boost/ticket/3730" target="_top">#3730</a>
          and <a href="https://svn.boost.org/trac/boost/ticket/11323" target="_top">11323</a>).
          Further more the issues may well be compiler specific. In this situation
          the user should supply a full specialization of the trait to work around
          the problem.
        </p></td></tr>
</tabl