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<a href="apply__tuple_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*******************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * tlx/meta/apply_tuple.hpp</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Part of tlx - http:https://panthema.net/tlx</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Copyright (C) 2016-2017 Timo Bingmann <[email protected]></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * All rights reserved. Published under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> ******************************************************************************/</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#ifndef TLX_META_APPLY_TUPLE_HEADER</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#define TLX_META_APPLY_TUPLE_HEADER</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <tuple></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <<a class="code" href="index__sequence_8hpp.html">tlx/meta/index_sequence.hpp</a>></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span><a class="code" href="namespacetlx.html">tlx</a> {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">//! \addtogroup tlx_meta</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">//! \{</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/******************************************************************************/</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// Tuple Applier: takes a std::tuple<> and applies a variadic template function</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// to it. Hence, this expands the content of the tuple as the arguments.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="namespacetlx_1_1meta__detail.html"> 28</a></span> <span class="keyword">namespace </span>meta_detail {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Functor, <span class="keyword">typename</span> Tuple, std::size_t... Is></div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="namespacetlx_1_1meta__detail.html#a4ba8f68ca15f7ebea1a34e993da8ecbd"> 31</a></span> <span class="keyword">auto</span> <a class="code" href="namespacetlx_1_1meta__detail.html#a4ba8f68ca15f7ebea1a34e993da8ecbd">apply_tuple_impl</a>(Functor&& f, Tuple&& t, <a class="code" href="structtlx_1_1index__sequence.html">index_sequence<Is...></a>) {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">return</span> std::forward<Functor>(f)(</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  std::get<Is>(std::forward<Tuple>(t)) ...);</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> }</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> } <span class="comment">// namespace meta_detail</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">//! Call the functor f with the contents of t as arguments.</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"></span><span class="keyword">template</span> <<span class="keyword">typename</span> Functor, <span class="keyword">typename</span> Tuple></div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="group__tlx__meta.html#ga697505eebc05040893022611ce8866c1"> 40</a></span> <span class="keyword">auto</span> <a class="code" href="group__tlx__meta.html#ga697505eebc05040893022611ce8866c1">apply_tuple</a>(Functor&& f, Tuple&& t) {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">using</span> Indices = <a class="code" href="structtlx_1_1make__index__sequence.html">make_index_sequence</a><</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  std::tuple_size<typename std::decay<Tuple>::type>::value>;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> <a class="code" href="namespacetlx_1_1meta__detail.html#a4ba8f68ca15f7ebea1a34e993da8ecbd">meta_detail::apply_tuple_impl</a>(</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  std::forward<Functor>(f), std::forward<Tuple>(t), Indices());</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"></span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">//! \}</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"></span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> } <span class="comment">// namespace tlx</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#endif // !TLX_META_APPLY_TUPLE_HEADER</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">/******************************************************************************/</span></div><div class="ttc" id="structtlx_1_1make__index__sequence_html"><div class="ttname"><a href="structtlx_1_1make__index__sequence.html">tlx::make_index_sequence</a></div><div class="ttdef"><b>Definition:</b> <a href="index__sequence_8hpp_source.html#l00048">index_sequence.hpp:48</a></div></div>
<div class="ttc" id="namespacetlx_html"><div class="ttname"><a href="namespacetlx.html">tlx</a></div><div class="ttdef"><b>Definition:</b> <a href="exclusive__scan_8hpp_source.html#l00017">exclusive_scan.hpp:17</a></div></div>
<div class="ttc" id="namespacetlx_1_1meta__detail_html_a4ba8f68ca15f7ebea1a34e993da8ecbd"><div class="ttname"><a href="namespacetlx_1_1meta__detail.html#a4ba8f68ca15f7ebea1a34e993da8ecbd">tlx::meta_detail::apply_tuple_impl</a></div><div class="ttdeci">auto apply_tuple_impl(Functor &&f, Tuple &&t, index_sequence< Is... >)</div><div class="ttdef"><b>Definition:</b> <a href="apply__tuple_8hpp_source.html#l00031">apply_tuple.hpp:31</a></div></div>
<div class="ttc" id="index__sequence_8hpp_html"><div class="ttname"><a href="index__sequence_8hpp.html">index_sequence.hpp</a></div></div>
<div class="ttc" id="group__tlx__meta_html_ga697505eebc05040893022611ce8866c1"><div class="ttname"><a href="group__tlx__meta.html#ga697505eebc05040893022611ce8866c1">tlx::apply_tuple</a></div><div class="ttdeci">auto apply_tuple(Functor &&f, Tuple &&t)</div><div class="ttdoc">Call the functor f with the contents of t as arguments. </div><div class="ttdef"><b>Definition:</b> <a href="apply__tuple_8hpp_source.html#l00040">apply_tuple.hpp:40</a></div></div>
<div class="ttc" id="structtlx_1_1index__sequence_html"><div class="ttname"><a href="structtlx_1_1index__sequence.html">tlx::index_sequence</a></div><div class="ttdef"><b>Definition:</b> <a href="index__sequence_8hpp_source.html#l00025">index_sequence.hpp:25</a></div></div>
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