has_inverse</span><span class="special">&lt;</span> <span class="identifier">codomain_type</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"> <a name="idp41711056-bb"></a><span class="identifier">BOOST_STATIC_CONSTANT</span><span class="special">(</span><span class="keyword">int</span><span class="speci