</i>. </dd>
      <dt>macro</dt>
      <dd> A binary macro of the form <i>macro</i>(<i>r</i>, <i>state</i>).&nbsp;
        This macro is expanded by <b>BOOST_PP_FOR</b> with the next available <b>BOOST_PP_FOR</b>
        repetition and the current <i>state</i>.&nbsp; This macro is is
        repeated by <b>BOOST_PP_FOR</b> until <i>pred</i> returns <i>0</i>. </dd>
    </dl>
    <h4>Remarks</h4>
    <div> This macro expands to the sequence:
      <div> <i>macro</i>(<i>r</i>, <i>state</i>) <i>macro</i>(<i>r</