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<p>Forward declares <code><a class="el" href="group__group-Foldable.html#ga17fe9c1982c882807f3358b4138c5744" title="Compute the product of the numbers of a structure.More generally, product will take any foldable stru...">boost::hana::product</a></code>.  
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Namespaces</h2></td></tr>
<tr class="memitem:namespaceboost_1_1hana"><td class="memItemLeft" align="right" valign="top"> &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceboost_1_1hana.html">boost::hana</a></td></tr>
<tr class="memdesc:namespaceboost_1_1hana"><td class="mdescLeft">&#160;</td><td class="mdescRight">Namespace containing everything in the library. <br /></td></tr>
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Variables</h2></td></tr>
<tr class="memitem:ga17fe9c1982c882807f3358b4138c5744"><td class="memItemLeft" align="right" valign="top">constexpr auto&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group-Foldable.html#ga17fe9c1982c882807f3358b4138c5744">boost::hana::product</a> = see documentation</td></tr>
<tr class="memdesc:ga17fe9c1982c882807f3358b4138c5744"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute the product of the numbers of a structure.More generally, <code>product</code> will take any foldable structure containing objects forming a Ring and reduce them using the Ring's binary operation. The initial state for folding is the identity of the Ring's operation. It is sometimes necessary to specify the Ring to use; this is possible by using <code>product&lt;R&gt;</code>. If no Ring is specified, the structure will use the Ring formed by the elements it contains (if it knows it), or <code><a class="el" href="structboost_1_1hana_1_1integral__constant__tag.html" title="Tag representing hana::integral_constant.">integral_constant_tag</a>&lt;int&gt;</code> otherwise. Hence,.  <a href="group__group-Foldable.html#ga17fe9c1982c882807f3358b4138c5744">More...</a><br /></td></tr>
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<div class="textblock"><p>Forward declares <code><a class="el" href="group__group-Foldable.html#ga17fe9c1982c882807f3358b4138c5744" title="Compute the product of the numbers of a structure.More generally, product will take any foldable stru...">boost::hana::product</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://boost.org/LICENSE_1_0.txt</a>) </dd></dl>
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