;</span><span class="keyword">typename</span> Integral<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../boost/icl/has_inverse_bo_idp41958112.html" title="Struct template has_inverse&lt;boost::rational&lt; Integral &gt;&gt;">has_inverse</a><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">rational</span><span class="special">&lt;</span> <span class="identifier">Integral</span> <span 