="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Forward declares <code><a class="el" href="group__group-_ring.html#gadea531feb3b0a1c5c3d777f7ab45e932" title="Identity of the Ring multiplication.">boost::hana::one</a></code>. </p>
<dl class="section copyright"><dt>Copyright</dt><dd>Louis Dionne 2013-2017 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at <a href="http://boost.org/LICENSE_1_0.txt">http