an class="special">)</span>
<span class="preprocessor">#define</span> <span class="identifier">BOOST_VMD_REGISTER_UDEF_HEXAGON</span> <span class="special">(</span><span class="identifier">UDEF_HEXAGON</span><span class="special">)</span>

<span class="preprocessor">#define</span> <span class="identifier">BOOST_VMD_DETECT_UDEF_CIRCLE_UDEF_CIRCLE</span>
<span class="preprocessor">#define</span> <span class="identifier">BOOST_VMD_DETECT_UDEF_SQUARE_UDEF_SQUARE</span>
<span class="preprocessor">#define</span> 