Boost C++ Libraries: Ticket #9137: mpl::and_<mpl::true_> returns false https://svn.boost.org/trac10/ticket/9137 <p> The following snippet fails to compile: </p> <pre class="wiki">#include &lt;boost/mpl/and.hpp&gt; #include &lt;boost/mpl/bool.hpp&gt; int main() { using namespace boost::mpl; static_assert(and_&lt;true_&gt;::value, "?"); //fires } </pre><p> See also the following thread at the mailing list <a class="ext-link" href="http://lists.boost.org/Archives/boost/2013/09/206333.php"><span class="icon">​</span>http://lists.boost.org/Archives/boost/2013/09/206333.php</a> </p> en-us Boost C++ Libraries /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/9137 Trac 1.4.3 Daryle Walker Sat, 21 Sep 2013 03:32:51 GMT cc set https://svn.boost.org/trac10/ticket/9137#comment:1 https://svn.boost.org/trac10/ticket/9137#comment:1 <ul> <li><strong>cc</strong> <span class="trac-author">dwalker07@…</span> added </li> </ul> Ticket