41705552-bb"></a><span class="identifier">BOOST_STATIC_CONSTANT</span><span class="special">(</span><span class="keyword">bool</span><span class="special">,</span> 
                       <span class="identifier">total_invertible</span> <span class="special">=</span> <span class="special">(</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">and_</span><span class="special">&lt;</span> <span class="identifier">is_total</span><span class="special">&lt;</span> <a c