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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="variadic_macro_data.vmd_reentrant"></a><a class="link" href="vmd_reentrant.html" title="Boost PP re-entrant versions">Boost PP re-entrant
    versions</a>
</h2></div></div></div>
<p>
      Nearly all macros in VMD have equivalent reentrant versions which are meant
      to be used in a BOOST_PP_WHILE loop. These are versions which have an underscore
      D suffix, take the next available BOOST_PP_WHILE iteration as their first parameter,
      and then have the exact same functionality as their unsuffixed equivalents.
      They can be used in BOOST_PP_WHILE loops to provide slightly quicker preprocessing
      but, as the documentation for BOOST_PP_WHILE and BOOST_PP_WHILE_##d explain,
      they do not have to be used.
    </p>
<p>
      These macros are:
    </p>
<p>
      Arrays
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          BOOST_VMD_IS_ARRAY_D
        </li>
<li class="listitem">
          BOOST_VMD_IS_EMPTY_ARRAY_D
        </li>
<li class="listitem">
          BOOST_VMD_ASSERT_IS_ARRAY_D
        </li>
</ul></div>
<p>
      Identifiers
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          BOOST_VMD_IS_IDENTIFIER_D
        </li>
<li class="listitem">
          BOOST_VMD_ASSERT_IS_IDENTIFIER_D
        </li>
</ul></div>
<p>
      Lists
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          BOOST_VMD_IS_LIST_D
        </li>
<li class="listitem">
          BOOST_VMD_IS_EMPTY_LIST_D
        </li>
<li class="listitem">
          BOOST_VMD_ASSERT_IS_LIST_D
        </li>
</ul></div>
<p>
      Sequences
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          BOOST_VMD_ELEM_D
        </li>
<li class="listitem">
          BOOST_VMD_ENUM_D
        </li>
<li class="listitem">
          BOOST_VMD_EQUAL_D
        </li>
<li class="listitem">
          BOOST_VMD_GET_TYPE_D
        </li>
<li class="listitem">
          BOOST_VMD_IS_MULTI_D
        </li>
<li class="listitem">
          BOOST_VMD_IS_UNARY_D
        </li>
<li class="listitem">
          BOOST_VMD_NOT_EQUAL_D
        </li>
<li class="listitem">
          BOOST_VMD_SIZE_D
        </li>
<li class="listitem">
          BOOST_VMD_TO_ARRAY_D
        </li>
<li class="listitem">
          BOOST_VMD_TO_LIST_D
        </li>
<li class="listitem">
          BOOST_VMD_TO_SEQ_D
        </li>
<li class="listitem">
          BOOST_VMD_TO_TUPLE_D
        </li>
</ul></div>
<p>
      Seqs
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          BOOST_VMD_IS_SEQ_D
        </li>
<li class="listitem">
          BOOST_VMD_ASSERT_IS_SEQ_D
        </li>
</ul></div>
<p>
      Types
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          BOOST_VMD_IS_TYPE_D
        </li>
<li class="listitem">
          BOOST_VMD_ASSERT_IS_TYPE_D
        </li>
</ul></div>
<p>
      Other
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          BOOST_VMD_IS_PARENS_EMPTY_D
        </li></ul></div>
</div>
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