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// Copyright Louis Dionne 2013-2017
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<div class="title">boost::fusion::tuple< T > Struct Template Reference<div class="ingroups"><a class="el" href="group__group-ext.html">External adapters</a> » <a class="el" href="group__group-ext-fusion.html">Boost.Fusion adapters</a></div></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
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<div class="textblock"><h3>template<typename ... T><br />
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struct boost::fusion::tuple< T ></h3>
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<p>Adapter for Boost.Fusion tuples. </p>
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<h2><a class="anchor" id="autotoc_md6"></a>
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Modeled concepts</h2>
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<p>A Fusion tuple is a model of the <code>Sequence</code> concept, and all the concepts it refines. That makes it essentially the same as a Hana tuple, although the complexity of some operations might differ from that of a tuple.</p>
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<div class="fragment"><div class="line"><span class="comment">// Copyright Louis Dionne 2013-2017</span></div>
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<div class="line"><span class="comment">// Distributed under the Boost Software License, Version 1.0.</span></div>
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<div class="line"><span class="comment">// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)</span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="assert_8hpp.html">boost/hana/assert.hpp</a>></span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="equal_8hpp.html">boost/hana/equal.hpp</a>></span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="ext_2boost_2fusion_2tuple_8hpp.html">boost/hana/ext/boost/fusion/tuple.hpp</a>></span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="integral__constant_8hpp.html">boost/hana/integral_constant.hpp</a>></span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="transform_8hpp.html">boost/hana/transform.hpp</a>></span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#include <boost/fusion/include/make_tuple.hpp></span></div>
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<div class="line"><span class="preprocessor">#include <boost/fusion/include/tuple.hpp></span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#include <string></span></div>
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<div class="line"><span class="keyword">namespace </span>fusion = boost::fusion;</div>
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<div class="line"><span class="keyword">namespace </span>hana = <a class="code" href="namespaceboost_1_1hana.html">boost::hana</a>;</div>
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<div class="line"> </div>
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<div class="line"> </div>
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<div class="line"><span class="keyword">struct </span>Fish { std::string name; };</div>
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<div class="line"><span class="keyword">struct </span>Cat { std::string name; };</div>
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<div class="line"><span class="keyword">struct </span>Dog { std::string name; };</div>
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<div class="line"> </div>
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<div class="line"><span class="keywordtype">int</span> main() {</div>
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<div class="line"> fusion::tuple<Fish, Cat, Dog> animals{Fish{<span class="stringliteral">"Nemo"</span>}, Cat{<span class="stringliteral">"Garfield"</span>}, Dog{<span class="stringliteral">"Snoopy"</span>}};</div>
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<div class="line"> <a class="code" href="group__group-_iterable.html#ga8a67ea10e8082dbe6705e573fa978444">hana::front</a>(animals).name = <span class="stringliteral">"Moby Dick"</span>;</div>
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<div class="line"> </div>
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<div class="line"> <span class="keyword">auto</span> names = hana::transform(animals, [](<span class="keyword">auto</span> a) {</div>
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<div class="line"> <span class="keywordflow">return</span> a.name;</div>
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<div class="line"> });</div>
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<div class="line"> </div>
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<div class="line"> <a class="code" href="group__group-assertions.html#ga4796ae107d58b67e0bbccd5ae6f70101">BOOST_HANA_RUNTIME_CHECK</a>(<a class="code" href="group__group-_comparable.html#gacaf1ebea6b3ab96ac9dcb82f0e64e547">hana::equal</a>(</div>
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<div class="line"> names,</div>
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<div class="line"> fusion::make_tuple(<span class="stringliteral">"Moby Dick"</span>, <span class="stringliteral">"Garfield"</span>, <span class="stringliteral">"Snoopy"</span>)</div>
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<div class="line"> ));</div>
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<div class="line">}</div>
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</div><!-- fragment --> </div></div><!-- contents -->
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</div><!-- doc-content -->
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<div class="ttc" id="aequal_8hpp_html"><div class="ttname"><a href="equal_8hpp.html">equal.hpp</a></div><div class="ttdoc">Defines boost::hana::equal.</div></div>
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<div class="ttc" id="aintegral__constant_8hpp_html"><div class="ttname"><a href="integral__constant_8hpp.html">integral_constant.hpp</a></div><div class="ttdoc">Defines boost::hana::integral_constant.</div></div>
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<div class="ttc" id="agroup__group-_iterable_html_ga8a67ea10e8082dbe6705e573fa978444"><div class="ttname"><a href="group__group-_iterable.html#ga8a67ea10e8082dbe6705e573fa978444">boost::hana::front</a></div><div class="ttdeci">constexpr auto front</div><div class="ttdoc">Returns the first element of a non-empty iterable.</div><div class="ttdef"><b>Definition:</b> front.hpp:32</div></div>
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<div class="ttc" id="anamespaceboost_1_1hana_html"><div class="ttname"><a href="namespaceboost_1_1hana.html">boost::hana</a></div><div class="ttdoc">Namespace containing everything in the library.</div><div class="ttdef"><b>Definition:</b> accessors.hpp:20</div></div>
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<div class="ttc" id="aassert_8hpp_html"><div class="ttname"><a href="assert_8hpp.html">assert.hpp</a></div><div class="ttdoc">Defines macros to perform different kinds of assertions.</div></div>
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<div class="ttc" id="atransform_8hpp_html"><div class="ttname"><a href="transform_8hpp.html">transform.hpp</a></div><div class="ttdoc">Defines boost::hana::transform.</div></div>
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<div class="ttc" id="agroup__group-assertions_html_ga4796ae107d58b67e0bbccd5ae6f70101"><div class="ttname"><a href="group__group-assertions.html#ga4796ae107d58b67e0bbccd5ae6f70101">BOOST_HANA_RUNTIME_CHECK</a></div><div class="ttdeci">#define BOOST_HANA_RUNTIME_CHECK(...)</div><div class="ttdoc">Equivalent to BOOST_HANA_RUNTIME_ASSERT, but not influenced by the BOOST_HANA_CONFIG_DISABLE_ASSERTIO...</div><div class="ttdef"><b>Definition:</b> assert.hpp:209</div></div>
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<div class="ttc" id="aext_2boost_2fusion_2tuple_8hpp_html"><div class="ttname"><a href="ext_2boost_2fusion_2tuple_8hpp.html">tuple.hpp</a></div><div class="ttdoc">Adapts boost::fusion::tuple for use with Hana.</div></div>
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<div class="ttc" id="agroup__group-_comparable_html_gacaf1ebea6b3ab96ac9dcb82f0e64e547"><div class="ttname"><a href="group__group-_comparable.html#gacaf1ebea6b3ab96ac9dcb82f0e64e547">boost::hana::equal</a></div><div class="ttdeci">constexpr auto equal</div><div class="ttdoc">Returns a Logical representing whether x is equal to y.</div><div class="ttdef"><b>Definition:</b> equal.hpp:64</div></div>
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Copyright Louis Dionne 2013-2017
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