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<a href="a01552.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">// <tuple> -*- C++ -*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</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="comment">// This library is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</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">/** @file include/tuple</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is a Standard C++ Library header.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifndef _GLIBCXX_TUPLE</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#define _GLIBCXX_TUPLE 1</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#pragma GCC system_header</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#ifndef __GXX_EXPERIMENTAL_CXX0X__</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span><span class="preprocessor"># include <<a class="code" href="a01013.html">bits/c++0x_warning.h</a>></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="a01574.html">utility</a>></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <bits/uses_allocator.h></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span>std _GLIBCXX_VISIBILITY(default)</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// Adds a const reference to a non-reference type.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">struct </span>__add_c_ref</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  { <span class="keyword">typedef</span> <span class="keyword">const</span> _Tp& type; };</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">struct </span>__add_c_ref<_Tp&></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  { <span class="keyword">typedef</span> _Tp& type; };</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Adds a reference to a non-reference type.</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">struct </span>__add_ref</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  { <span class="keyword">typedef</span> _Tp& type; };</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">struct </span>__add_ref<_Tp&></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  { <span class="keyword">typedef</span> _Tp& type; };</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// Adds an rvalue reference to a non-reference type.</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">struct </span>__add_r_ref</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  { <span class="keyword">typedef</span> _Tp&& type; };</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">struct </span>__add_r_ref<_Tp&></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  { <span class="keyword">typedef</span> _Tp& type; };</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Idx, <span class="keyword">typename</span> _Head, <span class="keywordtype">bool</span> _IsEmptyNotFinal></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">struct </span>_Head_base;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Idx, <span class="keyword">typename</span> _Head></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">struct </span>_Head_base<_Idx, _Head, true></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  : <span class="keyword">public</span> _Head</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  constexpr _Head_base()</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  : _Head() { }</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  constexpr _Head_base(<span class="keyword">const</span> _Head& __h)</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  : _Head(__h) { }</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  enable_if<!is_convertible<_UHead,</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  __uses_alloc_base>::value>::type></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  constexpr _Head_base(_UHead&& __h)</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  : _Head(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__h)) { }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  _Head_base(__uses_alloc0)</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  : _Head() { }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  _Head_base(__uses_alloc1<_Alloc> __a)</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  : _Head(allocator_arg, *__a._M_a) { }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  _Head_base(__uses_alloc2<_Alloc> __a)</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  : _Head(*__a._M_a) { }</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  _Head_base(__uses_alloc0, _UHead&& __uhead)</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  : _Head(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__uhead)) { }</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _UHead></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead)</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  : _Head(allocator_arg, *__a._M_a, std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__uhead)) { }</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _UHead></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead)</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  : _Head(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__uhead), *__a._M_a) { }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">static</span> constexpr _Head&</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  _M_head(_Head_base& __b) noexcept { <span class="keywordflow">return</span> __b; }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">static</span> constexpr <span class="keyword">const</span> _Head&</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  _M_head(<span class="keyword">const</span> _Head_base& __b) noexcept { <span class="keywordflow">return</span> __b; }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  };</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Idx, <span class="keyword">typename</span> _Head></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">struct </span>_Head_base<_Idx, _Head, false></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  {</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  constexpr _Head_base()</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  : _M_head_impl() { }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  constexpr _Head_base(<span class="keyword">const</span> _Head& __h)</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  : _M_head_impl(__h) { }</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  enable_if<!is_convertible<_UHead,</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  __uses_alloc_base>::value>::type></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  constexpr _Head_base(_UHead&& __h)</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  : _M_head_impl(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__h)) { }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  _Head_base(__uses_alloc0)</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  : _M_head_impl() { }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  _Head_base(__uses_alloc1<_Alloc> __a)</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  : _M_head_impl(allocator_arg, *__a._M_a) { }</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  _Head_base(__uses_alloc2<_Alloc> __a)</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  : _M_head_impl(*__a._M_a) { }</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  _Head_base(__uses_alloc0, _UHead&& __uhead)</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  : _M_head_impl(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__uhead)) { }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _UHead></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead)</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  : _M_head_impl(allocator_arg, *__a._M_a, std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__uhead))</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  { }</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _UHead></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead)</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  : _M_head_impl(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_UHead>(__uhead), *__a._M_a) { }</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">static</span> constexpr _Head&</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  _M_head(_Head_base& __b) noexcept { <span class="keywordflow">return</span> __b._M_head_impl; }</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">static</span> constexpr <span class="keyword">const</span> _Head&</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  _M_head(<span class="keyword">const</span> _Head_base& __b) noexcept { <span class="keywordflow">return</span> __b._M_head_impl; }</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  _Head _M_head_impl;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  };</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"></span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> * Contains the actual implementation of the @c tuple template, stored</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> * as a recursive inheritance hierarchy from the first element (most</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> * derived class) to the last (least derived class). The @c Idx</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> * parameter gives the 0-based index of the element stored at this</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> * point in the hierarchy; we use it to implement a constant-time</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> * get() operation.</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">template</span><std::size_t _Idx, <span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00178"></a><span class="lineno"><a class="code" href="a00421.html"> 178</a></span>  <span class="keyword">struct </span><a class="code" href="a00421.html">_Tuple_impl</a>; </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"></span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> * Zero-element tuple implementation. This is the basis case for the </span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> * inheritance recursion.</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Idx></div>
<div class="line"><a name="l00185"></a><span class="lineno"><a class="code" href="a00535.html"> 185</a></span>  <span class="keyword">struct </span><a class="code" href="a00421.html">_Tuple_impl</a><_Idx></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  {</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">template</span><std::size_t, <span class="keyword">typename</span>...> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00421.html">_Tuple_impl</a>;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="a00421.html">_Tuple_impl</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="code" href="a00421.html">_Tuple_impl</a>(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a>, <span class="keyword">const</span> _Alloc&) { }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <a class="code" href="a00421.html">_Tuple_impl</a>(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a>, <span class="keyword">const</span> _Alloc&, <span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl</a>&) { }</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <a class="code" href="a00421.html">_Tuple_impl</a>(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a>, <span class="keyword">const</span> _Alloc&, <a class="code" href="a00421.html">_Tuple_impl</a>&&) { }</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">void</span> _M_swap(<a class="code" href="a00421.html">_Tuple_impl</a>&) noexcept { <span class="comment">/* no-op */</span> }</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  };</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">// Use the Empty Base-class Optimization for empty, non-final types.</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">using</span> __empty_not_final</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  = <span class="keyword">typename</span> <a class="code" href="a00628.html" title="Define a member typedef type to one of two argument types.">conditional<__is_final(_Tp), false_type, is_empty<_Tp></a>>::type;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"></span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * Recursive tuple implementation. Here we store the @c Head element</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * and derive from a @c Tuple_impl containing the remaining elements</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * (which contains the @c Tail).</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">template</span><std::size_t _Idx, <span class="keyword">typename</span> _Head, <span class="keyword">typename</span>... _Tail></div>
<div class="line"><a name="l00215"></a><span class="lineno"><a class="code" href="a00536.html"> 215</a></span>  <span class="keyword">struct </span><a class="code" href="a00421.html">_Tuple_impl</a><_Idx, _Head, _Tail...></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  : <span class="keyword">public</span> <a class="code" href="a00421.html">_Tuple_impl</a><_Idx + 1, _Tail...>,</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">private</span> _Head_base<_Idx, _Head, __empty_not_final<_Head>::value></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  {</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">template</span><std::size_t, <span class="keyword">typename</span>...> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00421.html">_Tuple_impl</a>;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">typedef</span> <a class="code" href="a00421.html">_Tuple_impl</a><_Idx + 1, _Tail...> <a class="code" href="a00421.html">_Inherited</a>;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">typedef</span> _Head_base<_Idx, _Head, __empty_not_final<_Head>::value> _Base;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">static</span> constexpr _Head& </div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  _M_head(<a class="code" href="a00421.html">_Tuple_impl</a>& __t) noexcept { <span class="keywordflow">return</span> _Base::_M_head(__t); }</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">static</span> constexpr <span class="keyword">const</span> _Head&</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  _M_head(<span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl</a>& __t) noexcept { <span class="keywordflow">return</span> _Base::_M_head(__t); }</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">static</span> constexpr <a class="code" href="a00421.html">_Inherited</a>&</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  _M_tail(<a class="code" href="a00421.html">_Tuple_impl</a>& __t) noexcept { <span class="keywordflow">return</span> __t; }</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">static</span> constexpr <span class="keyword">const</span> <a class="code" href="a00421.html">_Inherited</a>&</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  _M_tail(<span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl</a>& __t) noexcept { <span class="keywordflow">return</span> __t; }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  constexpr <a class="code" href="a00421.html">_Tuple_impl</a>()</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  : <a class="code" href="a00421.html">_Inherited</a>(), _Base() { }</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">explicit</span> </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  constexpr _Tuple_impl(<span class="keyword">const</span> _Head& __head, <span class="keyword">const</span> _Tail&... __tail)</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tail...), _Base(__head) { }</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead, <span class="keyword">typename</span>... _UTail, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_Tail) == <span class="keyword">sizeof</span>...(_UTail)>::type> </div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">explicit</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  constexpr _Tuple_impl(_UHead&& __head, _UTail&&... __tail)</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  : <a class="code" href="a00421.html">_Inherited</a>(std::forward<_UTail>(__tail)...),</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  _Base(std::forward<_UHead>(__head)) { }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  constexpr _Tuple_impl(<span class="keyword">const</span> _Tuple_impl&) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  constexpr</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  _Tuple_impl(_Tuple_impl&& __in)</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  noexcept(__and_<<a class="code" href="a00774.html" title="is_nothrow_move_constructible">is_nothrow_move_constructible<_Head></a>,</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <a class="code" href="a00774.html" title="is_nothrow_move_constructible">is_nothrow_move_constructible<_Inherited></a>>::value)</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  : <a class="code" href="a00421.html">_Inherited</a>(std::move(_M_tail(__in))), </div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  _Base(std::forward<_Head>(_M_head(__in))) { }</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  constexpr _Tuple_impl(<span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...></a>& __in)</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  : <a class="code" href="a00421.html">_Inherited</a>(<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...>::_M_tail</a>(__in)),</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  _Base(<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...>::_M_head</a>(__in)) { }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead, <span class="keyword">typename</span>... _UTails></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  constexpr _Tuple_impl(<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...></a>&& __in)</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  : <a class="code" href="a00421.html">_Inherited</a>(std::move</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  (<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail</a>(__in))),</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  _Base(std::forward<_UHead></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  (<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head</a>(__in))) { }</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a)</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a),</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  _Base(__use_alloc<_Head>(__a)) { }</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keyword">const</span> _Head& __head, <span class="keyword">const</span> _Tail&... __tail)</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, __tail...),</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  _Base(__use_alloc<_Head, _Alloc, _Head>(__a), __head) { }</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _UHead, <span class="keyword">typename</span>... _UTail,</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">typename</span> = <span class="keyword">typename</span> <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_Tail)</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  == <span class="keyword">sizeof</span>...(_UTail)>::type></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  _UHead&& __head, _UTail&&... __tail)</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, std::forward<_UTail>(__tail)...),</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  std::forward<_UHead>(__head)) { }</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keyword">const</span> _Tuple_impl& __in)</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, _M_tail(__in)), </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  _Base(__use_alloc<_Head, _Alloc, _Head>(__a), _M_head(__in)) { }</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  _Tuple_impl&& __in)</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, std::move(_M_tail(__in))), </div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  _Base(__use_alloc<_Head, _Alloc, _Head>(__a),</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  std::forward<_Head>(_M_head(__in))) { }</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...></a>& __in)</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a,</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...>::_M_tail</a>(__in)),</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  _Base(__use_alloc<_Head, _Alloc, _Head>(__a),</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...>::_M_head</a>(__in)) { }</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _UHead, <span class="keyword">typename</span>... _UTails></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  _Tuple_impl(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...></a>&& __in)</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, std::move</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  (<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail</a>(__in))),</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  std::forward<_UHead></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  (<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head</a>(__in))) { }</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  _Tuple_impl&</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  operator=(<span class="keyword">const</span> _Tuple_impl& __in)</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  _M_head(*<span class="keyword">this</span>) = _M_head(__in);</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  _M_tail(*<span class="keyword">this</span>) = _M_tail(__in);</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  _Tuple_impl&</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  operator=(_Tuple_impl&& __in)</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  noexcept(__and_<<a class="code" href="a00773.html" title="is_nothrow_move_assignable">is_nothrow_move_assignable<_Head></a>,</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <a class="code" href="a00773.html" title="is_nothrow_move_assignable">is_nothrow_move_assignable<_Inherited></a>>::value)</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  {</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  _M_head(*<span class="keyword">this</span>) = std::forward<_Head>(_M_head(__in));</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  _M_tail(*<span class="keyword">this</span>) = std::move(_M_tail(__in));</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  _Tuple_impl&</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  operator=(<span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...></a>& __in)</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  {</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  _M_head(*<span class="keyword">this</span>) = <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...>::_M_head</a>(__in);</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  _M_tail(*<span class="keyword">this</span>) = <a class="code" href="a00421.html">_Tuple_impl<_Idx, _UElements...>::_M_tail</a>(__in);</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _UHead, <span class="keyword">typename</span>... _UTails></div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  _Tuple_impl&</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  operator=(<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...></a>&& __in)</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  {</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  _M_head(*<span class="keyword">this</span>) = std::forward<_UHead></div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  (<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head</a>(__in));</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  _M_tail(*<span class="keyword">this</span>) = std::move</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  (<a class="code" href="a00421.html">_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail</a>(__in));</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordtype">void</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  _M_swap(_Tuple_impl& __in)</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  noexcept(noexcept(swap(std::declval<_Head&>(),</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  std::declval<_Head&>()))</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  && noexcept(_M_tail(__in)._M_swap(_M_tail(__in))))</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  {</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">using</span> std::swap;</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  swap(_M_head(*<span class="keyword">this</span>), _M_head(__in));</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  _Inherited::_M_swap(_M_tail(__in));</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  }</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  };</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment"></span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment"> /// Primary class template, tuple</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements> </div>
<div class="line"><a name="l00374"></a><span class="lineno"><a class="code" href="a00932.html"> 374</a></span>  <span class="keyword">class </span><a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a> : <span class="keyword">public</span> <a class="code" href="a00421.html">_Tuple_impl</a><0, _Elements...></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  {</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keyword">typedef</span> <a class="code" href="a00421.html">_Tuple_impl</a><0, _Elements...> <a class="code" href="a00421.html">_Inherited</a>;</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  constexpr <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a>()</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  : <a class="code" href="a00421.html">_Inherited</a>() { }</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keyword">explicit</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  constexpr tuple(<span class="keyword">const</span> _Elements&... __elements)</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  : <a class="code" href="a00421.html">_Inherited</a>(__elements...) { }</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><__and_<<a class="code" href="a00749.html" title="is_convertible">is_convertible</a><_UElements,</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  _Elements>...>::value>::type></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keyword">explicit</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  constexpr tuple(_UElements&&... __elements)</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  : <a class="code" href="a00421.html">_Inherited</a>(std::forward<_UElements>(__elements)...) { }</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  constexpr tuple(<span class="keyword">const</span> tuple&) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  constexpr tuple(tuple&&) = <span class="keywordflow">default</span>; </div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><__and_<<a class="code" href="a00749.html" title="is_convertible">is_convertible</a><<span class="keyword">const</span> _UElements&,</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  _Elements>...>::value>::type></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  constexpr tuple(<span class="keyword">const</span> <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_UElements...></a>& __in)</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  : <a class="code" href="a00421.html">_Inherited</a>(<span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="a00421.html">_Tuple_impl</a><0, _UElements...<span class="keyword">></span>&>(__in))</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  { }</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><__and_<<a class="code" href="a00749.html" title="is_convertible">is_convertible</a><_UElements,</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  _Elements>...>::value>::type></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  constexpr tuple(<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_UElements...></a>&& __in)</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  : <a class="code" href="a00421.html">_Inherited</a>(<span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Tuple_impl</a><0, _UElements...<span class="keyword">></span>&&>(__in)) { }</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="comment">// Allocator-extended constructors.</span></div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a)</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a) { }</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keyword">const</span> _Elements&... __elements)</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, __elements...) { }</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_UElements)</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  == <span class="keyword">sizeof</span>...(_Elements)>::type></div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  _UElements&&... __elements)</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, std::forward<_UElements>(__elements)...)</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  { }</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> </div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, <span class="keyword">const</span> tuple& __in)</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, static_cast<const _Inherited&>(__in)) { }</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> </div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, tuple&& __in)</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, static_cast<_Inherited&&>(__in)) { }</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_UElements)</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  == <span class="keyword">sizeof</span>...(_Elements)>::type></div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keyword">const</span> <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_UElements...></a>& __in)</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a,</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="a00421.html">_Tuple_impl</a><0, _UElements...<span class="keyword">></span>&>(__in))</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  { }</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> </div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_UElements)</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  == <span class="keyword">sizeof</span>...(_Elements)>::type></div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_UElements...></a>&& __in)</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a,</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Tuple_impl</a><0, _UElements...<span class="keyword">></span>&&>(__in))</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  { }</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> </div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  tuple&</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  operator=(<span class="keyword">const</span> tuple& __in)</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  {</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = __in;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  }</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> </div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  tuple&</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  operator=(tuple&& __in)</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  noexcept(<a class="code" href="a00773.html" title="is_nothrow_move_assignable">is_nothrow_move_assignable<_Inherited>::value</a>)</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  {</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = std::move(__in);</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  }</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_UElements)</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  == <span class="keyword">sizeof</span>...(_Elements)>::type></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  tuple&</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  operator=(<span class="keyword">const</span> <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_UElements...></a>& __in)</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  {</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = __in;</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  }</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> </div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _UElements, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if</a><<span class="keyword">sizeof</span>...(_UElements)</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  == <span class="keyword">sizeof</span>...(_Elements)>::type></div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  tuple&</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  operator=(<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_UElements...></a>&& __in)</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  {</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = std::move(__in);</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  }</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> </div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordtype">void</span></div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  swap(tuple& __in)</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  noexcept(noexcept(__in._M_swap(__in)))</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  { _Inherited::_M_swap(__in); }</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  };</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> </div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="comment">// Explicit specialization, zero-element tuple.</span></div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keyword">template</span><> </div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keyword">class </span><a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a><></div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  {</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordtype">void</span> swap(<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a>&) noexcept { <span class="comment">/* no-op */</span> }</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  };</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="comment"></span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="comment"> /// Partial specialization, 2-element tuple.</span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="comment"> /// Includes construction and assignment from a pair.</span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _T1, <span class="keyword">typename</span> _T2></div>
<div class="line"><a name="l00507"></a><span class="lineno"><a class="code" href="a00933.html"> 507</a></span>  <span class="keyword">class </span><a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a><_T1, _T2> : <span class="keyword">public</span> <a class="code" href="a00421.html">_Tuple_impl</a><0, _T1, _T2></div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  {</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keyword">typedef</span> <a class="code" href="a00421.html">_Tuple_impl<0, _T1, _T2></a> <a class="code" href="a00421.html">_Inherited</a>;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> </div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  constexpr <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a>()</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  : <a class="code" href="a00421.html">_Inherited</a>() { }</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keyword">explicit</span></div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  constexpr tuple(<span class="keyword">const</span> _T1& __a1, <span class="keyword">const</span> _T2& __a2)</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  : <a class="code" href="a00421.html">_Inherited</a>(__a1, __a2) { }</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> </div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if<__and_<is_convertible<_U1, _T1></a>,</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <a class="code" href="a00749.html" title="is_convertible">is_convertible<_U2, _T2></a>>::value>::type></div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keyword">explicit</span></div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  constexpr tuple(_U1&& __a1, _U2&& __a2)</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  : <a class="code" href="a00421.html">_Inherited</a>(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { }</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> </div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  constexpr tuple(<span class="keyword">const</span> tuple&) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> </div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  constexpr tuple(tuple&&) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> </div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if<__and_<is_convertible<const _U1&, _T1></a>,</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <a class="code" href="a00749.html" title="is_convertible">is_convertible<const _U2&, _T2></a>>::value>::type></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  constexpr tuple(<span class="keyword">const</span> <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_U1, _U2></a>& __in)</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  : <a class="code" href="a00421.html">_Inherited</a>(<span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="a00421.html">_Tuple_impl<0, _U1, _U2></a>&<span class="keyword">></span>(__in)) { }</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> </div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if<__and_<is_convertible<_U1, _T1></a>,</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="a00749.html" title="is_convertible">is_convertible<_U2, _T2></a>>::value>::type></div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  constexpr tuple(<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_U1, _U2></a>&& __in)</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  : <a class="code" href="a00421.html">_Inherited</a>(<span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Tuple_impl<0, _U1, _U2></a>&&<span class="keyword">></span>(__in)) { }</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> </div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if<__and_<is_convertible<const _U1&, _T1></a>,</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <a class="code" href="a00749.html" title="is_convertible">is_convertible<const _U2&, _T2></a>>::value>::type></div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  constexpr tuple(<span class="keyword">const</span> <a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair<_U1, _U2></a>& __in)</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  : <a class="code" href="a00421.html">_Inherited</a>(__in.<a class="code" href="a00460.html#a198b03cffc037835dc1dc01c926ce251" title="second_type is the second bound type">first</a>, __in.<a class="code" href="a00460.html#a91179413226db12e66346d3673b7835f" title="first is a copy of the first object">second</a>) { }</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> </div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <a class="code" href="a00441.html" title="Define a member typedef type only if a boolean constant is true.">enable_if<__and_<is_convertible<_U1, _T1></a>,</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <a class="code" href="a00749.html" title="is_convertible">is_convertible<_U2, _T2></a>>::value>::type></div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  constexpr tuple(<a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair<_U1, _U2></a>&& __in)</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  : <a class="code" href="a00421.html">_Inherited</a>(std::forward<_U1>(__in.<a class="code" href="a00460.html#a198b03cffc037835dc1dc01c926ce251" title="second_type is the second bound type">first</a>),</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  std::forward<_U2>(__in.<a class="code" href="a00460.html#a91179413226db12e66346d3673b7835f" title="first is a copy of the first object">second</a>)) { }</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> </div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="comment">// Allocator-extended constructors.</span></div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> </div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a)</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a) { }</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keyword">const</span> _T1& __a1, <span class="keyword">const</span> _T2& __a2)</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, __a1, __a2) { }</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> </div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, _U1&& __a1, _U2&& __a2)</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, std::forward<_U1>(__a1),</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  std::forward<_U2>(__a2)) { }</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> </div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, <span class="keyword">const</span> tuple& __in)</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, static_cast<const _Inherited&>(__in)) { }</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, tuple&& __in)</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, static_cast<_Inherited&&>(__in)) { }</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keyword">const</span> <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_U1, _U2></a>& __in)</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a,</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="a00421.html">_Tuple_impl<0, _U1, _U2></a>&<span class="keyword">></span>(__in))</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  { }</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> </div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_U1, _U2></a>&& __in)</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Tuple_impl<0, _U1, _U2></a>&&<span class="keyword">></span>(__in))</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  { }</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span> </div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a,</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keyword">const</span> <a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair<_U1, _U2></a>& __in)</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, __in.<a class="code" href="a00460.html#a198b03cffc037835dc1dc01c926ce251" title="second_type is the second bound type">first</a>, __in.<a class="code" href="a00460.html#a91179413226db12e66346d3673b7835f" title="first is a copy of the first object">second</a>) { }</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> </div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Alloc, <span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  tuple(<a class="code" href="a00553.html" title="[allocator.tag]">allocator_arg_t</a> __tag, <span class="keyword">const</span> _Alloc& __a, <a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair<_U1, _U2></a>&& __in)</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  : <a class="code" href="a00421.html">_Inherited</a>(__tag, __a, std::forward<_U1>(__in.<a class="code" href="a00460.html#a198b03cffc037835dc1dc01c926ce251" title="second_type is the second bound type">first</a>),</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  std::forward<_U2>(__in.<a class="code" href="a00460.html#a91179413226db12e66346d3673b7835f" title="first is a copy of the first object">second</a>)) { }</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span> </div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  tuple&</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  operator=(<span class="keyword">const</span> tuple& __in)</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  {</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = __in;</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  }</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> </div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  tuple&</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  operator=(tuple&& __in)</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  noexcept(<a class="code" href="a00773.html" title="is_nothrow_move_assignable">is_nothrow_move_assignable<_Inherited>::value</a>)</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  {</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = std::move(__in);</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  }</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> </div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  tuple&</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  operator=(<span class="keyword">const</span> <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_U1, _U2></a>& __in)</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  {</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = __in;</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  }</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> </div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  tuple&</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  operator=(<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_U1, _U2></a>&& __in)</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  {</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="keyword">static_cast<</span><a class="code" href="a00421.html">_Inherited</a>&<span class="keyword">></span>(*this) = std::move(__in);</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  }</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span> </div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  tuple&</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  operator=(<span class="keyword">const</span> <a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair<_U1, _U2></a>& __in)</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  {</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  this->_M_head(*<span class="keyword">this</span>) = __in.<a class="code" href="a00460.html#a198b03cffc037835dc1dc01c926ce251" title="second_type is the second bound type">first</a>;</div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  this->_M_tail(*this)._M_head(*<span class="keyword">this</span>) = __in.<a class="code" href="a00460.html#a91179413226db12e66346d3673b7835f" title="first is a copy of the first object">second</a>;</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  }</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> </div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _U1, <span class="keyword">typename</span> _U2></div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  tuple&</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  operator=(<a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair<_U1, _U2></a>&& __in)</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  {</div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  this->_M_head(*<span class="keyword">this</span>) = std::forward<_U1>(__in.<a class="code" href="a00460.html#a198b03cffc037835dc1dc01c926ce251" title="second_type is the second bound type">first</a>);</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  this->_M_tail(*this)._M_head(*<span class="keyword">this</span>) = std::forward<_U2>(__in.<a class="code" href="a00460.html#a91179413226db12e66346d3673b7835f" title="first is a copy of the first object">second</a>);</div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  }</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keywordtype">void</span></div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  swap(tuple& __in)</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  noexcept(noexcept(__in._M_swap(__in)))</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  { _Inherited::_M_swap(__in); }</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  };</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span> </div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="comment"></span></div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="comment"> /// Gives the type of the ith element of a given tuple type.</span></div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="comment"></span> <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> __i, <span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00659"></a><span class="lineno"><a class="code" href="a00967.html"> 659</a></span>  <span class="keyword">struct </span><a class="code" href="a00966.html" title="tuple_element">tuple_element</a>;</div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="comment"></span></div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="comment"> * Recursive case for tuple_element: strip off the first element in</span></div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="comment"> * the tuple and retrieve the (i-1)th element of the remaining tuple.</span></div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keyword">template</span><std::size_t __i, <span class="keyword">typename</span> _Head, <span class="keyword">typename</span>... _Tail></div>
<div class="line"><a name="l00666"></a><span class="lineno"><a class="code" href="a00935.html"> 666</a></span>  <span class="keyword">struct </span><a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a><_Head, _Tail...> ></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  : <a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i - 1, tuple<_Tail...> > { };</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"></span></div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="comment"> * Basis case for tuple_element: The first element is the one we're seeking.</span></div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Head, <span class="keyword">typename</span>... _Tail></div>
<div class="line"><a name="l00673"></a><span class="lineno"><a class="code" href="a00934.html"> 673</a></span>  <span class="keyword">struct </span><a class="code" href="a00966.html" title="tuple_element">tuple_element</a><0, <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a><_Head, _Tail...> ></div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  {</div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keyword">typedef</span> _Head type;</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  };</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span> </div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> __i, <span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keyword">struct </span><a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, const _Tp></div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  {</div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span></div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <a class="code" href="a00544.html" title="add_const">add_const<typename tuple_element<__i, _Tp>::type</a>>::type type;</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  };</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> __i, <span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keyword">struct </span><a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, volatile _Tp></div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  {</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span></div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  add_volatile<typename tuple_element<__i, _Tp>::type>::type type;</div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  };</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> </div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> __i, <span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keyword">struct </span><a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, const volatile _Tp></div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  {</div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span></div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  add_cv<typename tuple_element<__i, _Tp>::type>::type type;</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  };</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="comment"></span></div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="comment"> /// Finds the size of a given tuple type.</span></div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00701"></a><span class="lineno"><a class="code" href="a00968.html"> 701</a></span>  <span class="keyword">struct </span><a class="code" href="a00969.html" title="tuple_size">tuple_size</a>;</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span> </div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keyword">struct </span><a class="code" href="a00969.html" title="tuple_size">tuple_size</a><const _Tp></div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  : <span class="keyword">public</span> integral_constant<</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  typename remove_cv<decltype(tuple_size<_Tp>::value)>::type,</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  tuple_size<_Tp>::value> { };</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span> </div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keyword">struct </span><a class="code" href="a00969.html" title="tuple_size">tuple_size</a><volatile _Tp></div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  : <span class="keyword">public</span> integral_constant<</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  typename remove_cv<decltype(tuple_size<_Tp>::value)>::type,</div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  tuple_size<_Tp>::value> { };</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span> </div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  <span class="keyword">struct </span><a class="code" href="a00969.html" title="tuple_size">tuple_size</a><const volatile _Tp></div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  : <span class="keyword">public</span> integral_constant<</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  typename remove_cv<decltype(tuple_size<_Tp>::value)>::type,</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  tuple_size<_Tp>::value> { };</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="comment"></span></div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span> <span class="comment"> /// class tuple_size</span></div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00723"></a><span class="lineno"><a class="code" href="a00936.html"> 723</a></span>  <span class="keyword">struct </span><a class="code" href="a00969.html" title="tuple_size">tuple_size</a><<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a><_Elements...>></div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  : <span class="keyword">public</span> <a class="code" href="a00447.html" title="integral_constant">integral_constant</a><std::size_t, sizeof...(_Elements)> { };</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span> </div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="keyword">template</span><std::size_t __i, <span class="keyword">typename</span> _Head, <span class="keyword">typename</span>... _Tail></div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  constexpr <span class="keyword">typename</span> __add_ref<_Head>::type</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  __get_helper(<a class="code" href="a00421.html">_Tuple_impl<__i, _Head, _Tail...></a>& __t) noexcept</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  { <span class="keywordflow">return</span> <a class="code" href="a00421.html">_Tuple_impl<__i, _Head, _Tail...>::_M_head</a>(__t); }</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span> </div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <span class="keyword">template</span><std::size_t __i, <span class="keyword">typename</span> _Head, <span class="keyword">typename</span>... _Tail></div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  constexpr <span class="keyword">typename</span> __add_c_ref<_Head>::type</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  __get_helper(<span class="keyword">const</span> <a class="code" href="a00421.html">_Tuple_impl<__i, _Head, _Tail...></a>& __t) noexcept</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  { <span class="keywordflow">return</span> <a class="code" href="a00421.html">_Tuple_impl<__i, _Head, _Tail...>::_M_head</a>(__t); }</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span> </div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="comment">// Return a reference (const reference, rvalue reference) to the ith element</span></div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="comment">// of a tuple. Any const or non-const ref elements are returned with their</span></div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <span class="comment">// original type.</span></div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keyword">template</span><std::size_t __i, <span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  constexpr <span class="keyword">typename</span> __add_ref<</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keyword">typename</span> <a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, tuple<_Elements...>>::type</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  >::type</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keyword">get</span>(tuple<_Elements...>& __t) noexcept</div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  { <span class="keywordflow">return</span> __get_helper<__i>(__t); }</div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span> </div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  <span class="keyword">template</span><std::size_t __i, <span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  constexpr <span class="keyword">typename</span> __add_c_ref<</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keyword">typename</span> <a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, tuple<_Elements...>>::type</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  >::type</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keyword">get</span>(<span class="keyword">const</span> tuple<_Elements...>& __t) noexcept</div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  { <span class="keywordflow">return</span> __get_helper<__i>(__t); }</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span> </div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="keyword">template</span><std::size_t __i, <span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  constexpr <span class="keyword">typename</span> __add_r_ref<</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="keyword">typename</span> <a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i, tuple<_Elements...>>::type</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  >::type</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="keyword">get</span>(tuple<_Elements...>&& __t) noexcept</div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  { <span class="keywordflow">return</span> <a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">std::forward</a><<span class="keyword">typename</span> <a class="code" href="a00966.html" title="tuple_element">tuple_element</a><__i,</div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  tuple<_Elements...>>::type&&>(get<__i>(__t)); }</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span> </div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="comment">// This class helps construct the various comparison operations on tuples</span></div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  <span class="keyword">template</span><std::size_t __check_equal_size, std::size_t __i, std::size_t __j,</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keyword">typename</span> _Tp, <span class="keyword">typename</span> _Up></div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <span class="keyword">struct </span>__tuple_compare;</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> </div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> __i, std::<span class="keywordtype">size_t</span> __j, <span class="keyword">typename</span> _Tp, <span class="keyword">typename</span> _Up></div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="keyword">struct </span>__tuple_compare<0, __i, __j, _Tp, _Up></div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  {</div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> </div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  __eq(<span class="keyword">const</span> _Tp& __t, <span class="keyword">const</span> _Up& __u)</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  {</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordflow">return</span> (get<__i>(__t) == get<__i>(__u) &&</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  __tuple_compare<0, __i + 1, __j, _Tp, _Up>::__eq(__t, __u));</div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  }</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  </div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> </div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  __less(<span class="keyword">const</span> _Tp& __t, <span class="keyword">const</span> _Up& __u)</div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  {</div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="keywordflow">return</span> ((get<__i>(__t) < get<__i>(__u))</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  || !(get<__i>(__u) < get<__i>(__t)) &&</div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  __tuple_compare<0, __i + 1, __j, _Tp, _Up>::__less(__t, __u));</div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  }</div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  };</div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> </div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> __i, <span class="keyword">typename</span> _Tp, <span class="keyword">typename</span> _Up></div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="keyword">struct </span>__tuple_compare<0, __i, __i, _Tp, _Up></div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  {</div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> </div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  __eq(<span class="keyword">const</span> _Tp&, <span class="keyword">const</span> _Up&) { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  </div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> </div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  __less(<span class="keyword">const</span> _Tp&, <span class="keyword">const</span> _Up&) { <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  };</div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span> </div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _TElements, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  operator==(<span class="keyword">const</span> tuple<_TElements...>& __t,</div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="keyword">const</span> tuple<_UElements...>& __u)</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  {</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="keyword">typedef</span> tuple<_TElements...> _Tp;</div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keyword">typedef</span> tuple<_UElements...> _Up;</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="keywordflow">return</span> (__tuple_compare<<a class="code" href="a00969.html" title="tuple_size">tuple_size<_Tp>::value</a> - <a class="code" href="a00969.html" title="tuple_size">tuple_size<_Up>::value</a>,</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  0, <a class="code" href="a00969.html" title="tuple_size">tuple_size<_Tp>::value</a>, _Tp, _Up>::__eq(__t, __u));</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  }</div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span> </div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _TElements, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  operator<(<span class="keyword">const</span> tuple<_TElements...>& __t,</div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="keyword">const</span> tuple<_UElements...>& __u)</div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  {</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="keyword">typedef</span> tuple<_TElements...> _Tp;</div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keyword">typedef</span> tuple<_UElements...> _Up;</div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <span class="keywordflow">return</span> (__tuple_compare<<a class="code" href="a00969.html" title="tuple_size">tuple_size<_Tp>::value</a> - <a class="code" href="a00969.html" title="tuple_size">tuple_size<_Up>::value</a>,</div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  0, <a class="code" href="a00969.html" title="tuple_size">tuple_size<_Tp>::value</a>, _Tp, _Up>::__less(__t, __u));</div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  }</div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span> </div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _TElements, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  operator!=(<span class="keyword">const</span> tuple<_TElements...>& __t,</div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="keyword">const</span> tuple<_UElements...>& __u)</div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  { <span class="keywordflow">return</span> !(__t == __u); }</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span> </div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _TElements, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  operator>(<span class="keyword">const</span> tuple<_TElements...>& __t,</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="keyword">const</span> tuple<_UElements...>& __u)</div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  { <span class="keywordflow">return</span> __u < __t; }</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span> </div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _TElements, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  operator<=(<span class="keyword">const</span> tuple<_TElements...>& __t,</div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keyword">const</span> tuple<_UElements...>& __u)</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  { <span class="keywordflow">return</span> !(__u < __t); }</div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span> </div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _TElements, <span class="keyword">typename</span>... _UElements></div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  operator>=(<span class="keyword">const</span> tuple<_TElements...>& __t,</div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <span class="keyword">const</span> tuple<_UElements...>& __u)</div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  { <span class="keywordflow">return</span> !(__t < __u); }</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span> </div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  <span class="comment">// NB: DR 705.</span></div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  constexpr tuple<typename __decay_and_strip<_Elements>::__type...></div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  make_tuple(_Elements&&... __args)</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  {</div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <span class="keyword">typedef</span> tuple<typename __decay_and_strip<_Elements>::__type...></div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  __result_type;</div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="keywordflow">return</span> __result_type(std::forward<_Elements>(__args)...);</div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  }</div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span> </div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  constexpr tuple<_Elements&&...></div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  forward_as_tuple(_Elements&&... __args) noexcept</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  { <span class="keywordflow">return</span> tuple<_Elements&&...>(std::forward<_Elements>(__args)...); }</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span> </div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span> </div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  <span class="keyword">template</span><<span class="keyword">typename</span>, std::<span class="keywordtype">size_t</span>> <span class="keyword">struct </span>array;</div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span> </div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Int, <span class="keyword">typename</span> _Tp, std::<span class="keywordtype">size_t</span> _Nm></div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  constexpr _Tp& <span class="keyword">get</span>(array<_Tp, _Nm>&) noexcept;</div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span> </div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Int, <span class="keyword">typename</span> _Tp, std::<span class="keywordtype">size_t</span> _Nm></div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  constexpr _Tp&& <span class="keyword">get</span>(array<_Tp, _Nm>&&) noexcept;</div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span> </div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Int, <span class="keyword">typename</span> _Tp, std::<span class="keywordtype">size_t</span> _Nm></div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  constexpr <span class="keyword">const</span> _Tp& <span class="keyword">get</span>(<span class="keyword">const</span> array<_Tp, _Nm>&) noexcept;</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span> </div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="keyword">template</span><<span class="keyword">typename</span>></div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="keyword">struct </span>__is_tuple_like_impl : <a class="code" href="a01642.html#gaebe6729ab5488ecc76c762873d226857" title="The type used as a compile-time boolean with false value.">false_type</a></div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  { };</div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span> </div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Tps></div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <span class="keyword">struct </span>__is_tuple_like_impl<tuple<_Tps...>> : <a class="code" href="a01642.html#ga6a860513044e23d34e553ea986e83fa1" title="The type used as a compile-time boolean with true value.">true_type</a></div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  { };</div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span> </div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _T1, <span class="keyword">typename</span> _T2></div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="keyword">struct </span>__is_tuple_like_impl<pair<_T1, _T2>> : <a class="code" href="a01642.html#ga6a860513044e23d34e553ea986e83fa1" title="The type used as a compile-time boolean with true value.">true_type</a></div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  { };</div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span> </div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp, std::<span class="keywordtype">size_t</span> _Nm></div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  <span class="keyword">struct </span>__is_tuple_like_impl<array<_Tp, _Nm>> : <a class="code" href="a01642.html#ga6a860513044e23d34e553ea986e83fa1" title="The type used as a compile-time boolean with true value.">true_type</a></div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  { };</div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span> </div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  <span class="comment">// Internal type trait that allows us to sfinae-protect tuple_cat.</span></div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  <span class="keyword">struct </span>__is_tuple_like</div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  : <span class="keyword">public</span> __is_tuple_like_impl<typename std::remove_cv</div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  <typename std::remove_reference<_Tp>::type>::type>::type</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  { };</div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span> </div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <span class="comment">// Stores a tuple of indices. Also used by bind() to extract the elements</span></div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  <span class="comment">// in a tuple. </span></div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <span class="keyword">template</span><std::size_t... _Indexes></div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  <span class="keyword">struct </span>_Index_tuple</div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  {</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  <span class="keyword">typedef</span> _Index_tuple<_Indexes..., <span class="keyword">sizeof</span>...(_Indexes)> __next;</div>
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  };</div>
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span> </div>
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  <span class="comment">// Builds an _Index_tuple<0, 1, 2, ..., _Num-1>.</span></div>
<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> _Num></div>
<div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="keyword">struct </span>_Build_index_tuple</div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  {</div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Build_index_tuple<_Num - 1>::__type::__next __type;</div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  };</div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span> </div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keyword">template</span><></div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  <span class="keyword">struct </span>_Build_index_tuple<0></div>
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  {</div>
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  <span class="keyword">typedef</span> _Index_tuple<> __type;</div>
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  };</div>
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span> </div>
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span>, <span class="keyword">typename</span>, <span class="keyword">typename</span>, std::<span class="keywordtype">size_t</span>></div>
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  <span class="keyword">struct </span>__make_tuple_impl;</div>
<div class="line"><a name="l00914"></a><span class="lineno"> 914</span> </div>
<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="keyword">template</span><std::size_t _Idx, <span class="keyword">typename</span> _Tuple, <span class="keyword">typename</span>... _Tp,</div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  std::size_t _Nm></div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  <span class="keyword">struct </span>__make_tuple_impl<_Idx, tuple<_Tp...>, _Tuple, _Nm></div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  {</div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __make_tuple_impl<_Idx + 1, tuple<_Tp...,</div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  <span class="keyword">typename</span> std::tuple_element<_Idx, _Tuple>::type>, _Tuple, _Nm>::__type</div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  __type;</div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  };</div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span> </div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  <span class="keyword">template</span><std::size_t _Nm, <span class="keyword">typename</span> _Tuple, <span class="keyword">typename</span>... _Tp></div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="keyword">struct </span>__make_tuple_impl<_Nm, tuple<_Tp...>, _Tuple, _Nm></div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  {</div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="keyword">typedef</span> tuple<_Tp...> __type;</div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  };</div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span> </div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tuple></div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="keyword">struct </span>__do_make_tuple</div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  : <span class="keyword">public</span> __make_tuple_impl<0, tuple<>, _Tuple,</div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  std::tuple_size<_Tuple>::value></div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  { };</div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span> </div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  <span class="comment">// Returns the std::tuple equivalent of a tuple-like type.</span></div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tuple></div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keyword">struct </span>__make_tuple</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  : <span class="keyword">public</span> __do_make_tuple<typename std::remove_cv</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <typename std::remove_reference<_Tuple>::type>::type></div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  { };</div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span> </div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  <span class="comment">// Combines several std::tuple's into a single one.</span></div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  <span class="keyword">template</span><<span class="keyword">typename</span>...></div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  <span class="keyword">struct </span>__combine_tuples;</div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span> </div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  <span class="keyword">template</span><></div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  <span class="keyword">struct </span>__combine_tuples<></div>
<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  {</div>
<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  <span class="keyword">typedef</span> tuple<> __type;</div>
<div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  };</div>
<div class="line"><a name="l00952"></a><span class="lineno"> 952</span> </div>
<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Ts></div>
<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  <span class="keyword">struct </span>__combine_tuples<tuple<_Ts...>></div>
<div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  {</div>
<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <span class="keyword">typedef</span> tuple<_Ts...> __type;</div>
<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  };</div>
<div class="line"><a name="l00958"></a><span class="lineno"> 958</span> </div>
<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _T1s, <span class="keyword">typename</span>... _T2s, <span class="keyword">typename</span>... _Rem></div>
<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="keyword">struct </span>__combine_tuples<tuple<_T1s...>, tuple<_T2s...>, _Rem...></div>
<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  {</div>
<div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __combine_tuples<tuple<_T1s..., _T2s...>,</div>
<div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  _Rem...>::__type __type;</div>
<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  };</div>
<div class="line"><a name="l00965"></a><span class="lineno"> 965</span> </div>
<div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  <span class="comment">// Computes the result type of tuple_cat given a set of tuple-like types.</span></div>
<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Tpls></div>
<div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  <span class="keyword">struct </span>__tuple_cat_result</div>
<div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  {</div>
<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __combine_tuples</div>
<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  <<span class="keyword">typename</span> __make_tuple<_Tpls>::__type...>::__type __type;</div>
<div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  };</div>
<div class="line"><a name="l00973"></a><span class="lineno"> 973</span> </div>
<div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <span class="comment">// Helper to determine the index set for the first tuple-like</span></div>
<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  <span class="comment">// type of a given set.</span></div>
<div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  <span class="keyword">template</span><<span class="keyword">typename</span>...></div>
<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  <span class="keyword">struct </span>__make_1st_indices;</div>
<div class="line"><a name="l00978"></a><span class="lineno"> 978</span> </div>
<div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  <span class="keyword">template</span><></div>
<div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  <span class="keyword">struct </span>__make_1st_indices<></div>
<div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  {</div>
<div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  <span class="keyword">typedef</span> std::_Index_tuple<> __type;</div>
<div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  };</div>
<div class="line"><a name="l00984"></a><span class="lineno"> 984</span> </div>
<div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp, <span class="keyword">typename</span>... _Tpls></div>
<div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  <span class="keyword">struct </span>__make_1st_indices<_Tp, _Tpls...></div>
<div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  {</div>
<div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::_Build_index_tuple<std::tuple_size<</div>
<div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  <span class="keyword">typename</span> std::remove_reference<_Tp>::type>::value>::__type __type;</div>
<div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  };</div>
<div class="line"><a name="l00991"></a><span class="lineno"> 991</span> </div>
<div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  <span class="comment">// Performs the actual concatenation by step-wise expanding tuple-like</span></div>
<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  <span class="comment">// objects into the elements, which are finally forwarded into the</span></div>
<div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  <span class="comment">// result tuple.</span></div>
<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Ret, <span class="keyword">typename</span> _Indices, <span class="keyword">typename</span>... _Tpls></div>
<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="keyword">struct </span>__tuple_concater;</div>
<div class="line"><a name="l00997"></a><span class="lineno"> 997</span> </div>
<div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Ret, std::size_t... _Is, <span class="keyword">typename</span> _Tp, <span class="keyword">typename</span>... _Tpls></div>
<div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  <span class="keyword">struct </span>__tuple_concater<_Ret, std::_Index_tuple<_Is...>, _Tp, _Tpls...></div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  {</div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Us></div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  <span class="keyword">static</span> constexpr _Ret</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  _S_do(_Tp&& __tp, _Tpls&&... __tps, _Us&&... __us)</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  {</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __make_1st_indices<_Tpls...>::__type __idx;</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  <span class="keyword">typedef</span> __tuple_concater<_Ret, __idx, _Tpls...> __next;</div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  <span class="keywordflow">return</span> __next::_S_do(std::forward<_Tpls>(__tps)...,</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  std::forward<_Us>(__us)...,</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  std::get<_Is>(std::forward<_Tp>(__tp))...);</div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  }</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  };</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span> </div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Ret></div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  <span class="keyword">struct </span>__tuple_concater<_Ret, std::_Index_tuple<>></div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  {</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Us></div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  <span class="keyword">static</span> constexpr _Ret</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  _S_do(_Us&&... __us)</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  {</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="keywordflow">return</span> _Ret(std::forward<_Us>(__us)...);</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  }</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  };</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span> </div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Tpls, <span class="keyword">typename</span> = <span class="keyword">typename</span></div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  enable_if<__and_<__is_tuple_like<_Tpls>...>::value>::type></div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  constexpr <span class="keyword">auto</span></div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  tuple_cat(_Tpls&&... __tpls)</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  -> <span class="keyword">typename</span> __tuple_cat_result<_Tpls...>::__type</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  {</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __tuple_cat_result<_Tpls...>::__type __ret;</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __make_1st_indices<_Tpls...>::__type __idx;</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  <span class="keyword">typedef</span> __tuple_concater<__ret, __idx, _Tpls...> __concater;</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  <span class="keywordflow">return</span> __concater::_S_do(std::forward<_Tpls>(__tpls)...);</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  }</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span> </div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <span class="keyword">inline</span> tuple<_Elements&...></div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  tie(_Elements&... __args) noexcept</div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  { <span class="keywordflow">return</span> tuple<_Elements&...>(__args...); }</div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span> </div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements></div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> </div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y)</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  noexcept(noexcept(__x.swap(__y)))</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  { __x.swap(__y); }</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span> </div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  <span class="comment">// A class (and instance) which can be used in 'tie' when an element</span></div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  <span class="comment">// of a tuple is not required</span></div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  <span class="keyword">struct </span>_Swallow_assign</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  {</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Tp></div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  <span class="keyword">const</span> _Swallow_assign&</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  operator=(<span class="keyword">const</span> _Tp&)<span class="keyword"> const</span></div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  };</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span> </div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  <span class="keyword">const</span> _Swallow_assign ignore{};</div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span> <span class="comment"></span></div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span> <span class="comment"> /// Partial specialization for tuples</span></div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span>... _Types, <span class="keyword">typename</span> _Alloc></div>
<div class="line"><a name="l01061"></a><span class="lineno"><a class="code" href="a00955.html"> 1061</a></span>  <span class="keyword">struct </span><a class="code" href="a00954.html" title="[allocator.uses.trait]">uses_allocator</a><<a class="code" href="a00932.html" title="Primary class template, tuple.">tuple</a><_Types...>, _Alloc> : <a class="code" href="a00447.html" title="integral_constant">true_type</a> { };</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span> </div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  <span class="comment">// See stl_pair.h...</span></div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  <span class="keyword">template</span><<span class="keyword">class</span> _T1, <span class="keyword">class</span> _T2></div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Args1, <span class="keyword">typename</span>... _Args2></div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  <span class="keyword">inline</span></div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  <a class="code" href="a00460.html#a79bb1a193a2b60cc58921de917a04ac5" title="second is a copy of the second object">pair<_T1, _T2>::</a></div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> <a class="code" href="a00460.html#a79bb1a193a2b60cc58921de917a04ac5" title="second is a copy of the second object"> pair</a>(<a class="code" href="a00872.html" title="piecewise_construct_t">piecewise_construct_t</a>,</div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_Args1...></a> __first, <a class="code" href="a00932.html" title="Primary class template, tuple.">tuple<_Args2...></a> __second)</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  : <a class="code" href="a00460.html" title="Struct holding two objects of arbitrary type.">pair</a>(__first, __second,</div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  typename _Build_index_tuple<sizeof...(_Args1)>::__type(),</div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  typename _Build_index_tuple<sizeof...(_Args2)>::__type())</div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  { }</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span> </div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  <span class="keyword">template</span><<span class="keyword">class</span> _T1, <span class="keyword">class</span> _T2></div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Args1, std::size_t... _Indexes1,</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  <span class="keyword">typename</span>... _Args2, std::size_t... _Indexes2></div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  <span class="keyword">inline</span></div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  <a class="code" href="a00460.html#a79bb1a193a2b60cc58921de917a04ac5" title="second is a copy of the second object">pair<_T1, _T2>::</a></div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span> <a class="code" href="a00460.html#a79bb1a193a2b60cc58921de917a04ac5" title="second is a copy of the second object"> pair</a>(tuple<_Args1...>& __tuple1, tuple<_Args2...>& __tuple2,</div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>)</div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  : first(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_Args1>(std::get<_Indexes1>(__tuple1))...),</div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  second(std::<a class="code" href="a01643.html#gacb5baec338e12b99cb6bddea7506c7c6" title="Forward an lvalue.">forward</a><_Args2>(std::get<_Indexes2>(__tuple2))...)</div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  { }</div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span> </div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span> _GLIBCXX_END_NAMESPACE_VERSION</div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span> } <span class="comment">// namespace</span></div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span> </div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span> <span class="preprocessor">#endif // __GXX_EXPERIMENTAL_CXX0X__</span></div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span> <span class="preprocessor">#endif // _GLIBCXX_TUPLE</span></div>
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