pan><span class="special">;</span>
    <a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a> <a class="link" href="../boost/logic/operator__idp95415648.html" title="Function operator!"><span class="keyword">operator</span><span class="special">!</span></a><span class="special">(</span><a class="link" href="../boost/logic/tribool.html" title="Class tribool">tribool</a><span class="special">)</span><span class="special">;</span>
    <a class="link" href="../boost/logic/tribool.h