=special>...</span>
    <span class=identifier>ordered_non_unique</span><span class=special>&lt;</span>
      <span class=comment>// compiler error: can't convert &amp;employee::salary to
      // std::size_t (employee::*)() const</span>
      <span class=identifier><b>const_mem_fun</b></span><span class=special>&lt;</span><span class=identifier>employee</span><span class=special>,</span><span class=identifier>std</span><span class=special>::</span><span class=identifier>size_t</span><span class=special>,&a