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<a href="a00071.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> // <functional> -*- C++ -*-</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> // Copyright (C) 2001-2018 Free Software Foundation, Inc.</div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> //</div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> // This file is part of the GNU ISO C++ Library. This library is free</div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> // software; you can redistribute it and/or modify it under the</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> // terms of the GNU General Public License as published by the</div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> // Free Software Foundation; either version 3, or (at your option)</div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> // any later version.</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> // This library is distributed in the hope that it will be useful,</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> // but WITHOUT ANY WARRANTY; without even the implied warranty of</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> // GNU General Public License for more details.</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> // Under Section 7 of GPL version 3, you are granted additional</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> // permissions described in the GCC Runtime Library Exception, version</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> // 3.1, as published by the Free Software Foundation.</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> // You should have received a copy of the GNU General Public License and</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> // a copy of the GCC Runtime Library Exception along with this program;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> // <http://www.gnu.org/licenses/>.</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> /*</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  * Copyright (c) 1997</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  * Silicon Graphics Computer Systems, Inc.</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>  * Permission to use, copy, modify, distribute and sell this software</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  * and its documentation for any purpose is hereby granted without fee,</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  * provided that the above copyright notice appear in all copies and</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  * that both that copyright notice and this permission notice appear</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  * in supporting documentation. Silicon Graphics makes no</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  * representations about the suitability of this software for any</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  * purpose. It is provided "as is" without express or implied warranty.</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  *</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  */</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> /** @file include/functional</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  * This is a Standard C++ Library header.</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  */</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> #ifndef _GLIBCXX_FUNCTIONAL</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> #define _GLIBCXX_FUNCTIONAL 1</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> #pragma GCC system_header</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> #include <bits/c++config.h></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> #include <bits/stl_function.h></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> #if __cplusplus >= 201103L</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> #include <new></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> #include <tuple></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> #include <type_traits></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> #include <bits/functional_hash.h></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> #include <bits/invoke.h></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> #include <bits/refwrap.h> // std::reference_wrapper and _Mem_fn_traits</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> #include <bits/std_function.h> // std::function</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> #if __cplusplus > 201402L</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> # include <unordered_map></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> # include <vector></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> # include <array></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> # include <utility></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> # include <bits/stl_algo.h></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> #endif</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> namespace std _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</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> #if __cplusplus > 201402L</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> # define __cpp_lib_invoke 201411</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>  /// Invoke a callable object.</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  template<typename _Callable, typename... _Args></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  inline invoke_result_t<_Callable, _Args...></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  invoke(_Callable&& __fn, _Args&&... __args)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  noexcept(is_nothrow_invocable_v<_Callable, _Args...>)</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  {</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  return std::__invoke(std::forward<_Callable>(__fn),</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  std::forward<_Args>(__args)...);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> #endif</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  template<typename _MemFunPtr,</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  bool __is_mem_fn = is_member_function_pointer<_MemFunPtr>::value></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  class _Mem_fn_base</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  : public _Mem_fn_traits<_MemFunPtr>::__maybe_type</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>  using _Traits = _Mem_fn_traits<_MemFunPtr>;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  using _Arity = typename _Traits::__arity;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  using _Varargs = typename _Traits::__vararg;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  template<typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  friend struct _Bind_check_arity;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  _MemFunPtr _M_pmf;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  public:</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  using result_type = typename _Traits::__result_type;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  explicit constexpr</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  _Mem_fn_base(_MemFunPtr __pmf) noexcept : _M_pmf(__pmf) { }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  template<typename... _Args></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  auto</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  operator()(_Args&&... __args) const</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  noexcept(noexcept(</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  std::__invoke(_M_pmf, std::forward<_Args>(__args)...)))</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  -> decltype(std::__invoke(_M_pmf, std::forward<_Args>(__args)...))</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  { return std::__invoke(_M_pmf, std::forward<_Args>(__args)...); }</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  };</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>  // Partial specialization for member object pointers.</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  template<typename _MemObjPtr></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  class _Mem_fn_base<_MemObjPtr, false></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>  using _Arity = integral_constant<size_t, 0>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  using _Varargs = false_type;</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>  template<typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  friend struct _Bind_check_arity;</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>  _MemObjPtr _M_pm;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  public:</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  explicit constexpr</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  _Mem_fn_base(_MemObjPtr __pm) noexcept : _M_pm(__pm) { }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  template<typename _Tp></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  auto</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  operator()(_Tp&& __obj) const</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  noexcept(noexcept(std::__invoke(_M_pm, std::forward<_Tp>(__obj))))</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  -> decltype(std::__invoke(_M_pm, std::forward<_Tp>(__obj)))</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  { return std::__invoke(_M_pm, std::forward<_Tp>(__obj)); }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  };</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  template<typename _MemberPointer></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  struct _Mem_fn; // undefined</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  template<typename _Res, typename _Class></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  struct _Mem_fn<_Res _Class::*></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  : _Mem_fn_base<_Res _Class::*></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  using _Mem_fn_base<_Res _Class::*>::_Mem_fn_base;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  };</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>  // _GLIBCXX_RESOLVE_LIB_DEFECTS</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  // 2048. Unnecessary mem_fn overloads</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  /**</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  * @brief Returns a function object that forwards to the member</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  * pointer @a pm.</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  * @ingroup functors</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  */</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  template<typename _Tp, typename _Class></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  inline _Mem_fn<_Tp _Class::*></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  mem_fn(_Tp _Class::* __pm) noexcept</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  {</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  return _Mem_fn<_Tp _Class::*>(__pm);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </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>  * @brief Determines if the given type _Tp is a function object that</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  * should be treated as a subexpression when evaluating calls to</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  * function objects returned by bind().</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  *</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  * C++11 [func.bind.isbind].</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  * @ingroup binders</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  */</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  template<typename _Tp></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  struct is_bind_expression</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  : public false_type { };</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  /**</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  * @brief Determines if the given type _Tp is a placeholder in a</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  * bind() expression and, if so, which placeholder it is.</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  *</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  * C++11 [func.bind.isplace].</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  * @ingroup binders</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  */</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  template<typename _Tp></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  struct is_placeholder</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  : public integral_constant<int, 0></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  { };</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> #if __cplusplus > 201402L</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  template <typename _Tp> inline constexpr bool is_bind_expression_v</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  = is_bind_expression<_Tp>::value;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  template <typename _Tp> inline constexpr int is_placeholder_v</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  = is_placeholder<_Tp>::value;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> #endif // C++17</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  /** @brief The type of placeholder objects defined by libstdc++.</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  * @ingroup binders</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  */</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  template<int _Num> struct _Placeholder { };</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  /** @namespace std::placeholders</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  * @brief ISO C++11 entities sub-namespace for functional.</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  * @ingroup binders</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  */</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  namespace placeholders</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  /* Define a large number of placeholders. There is no way to</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  * simplify this with variadic templates, because we're introducing</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  * unique names for each.</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  */</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  extern const _Placeholder<1> _1;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  extern const _Placeholder<2> _2;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  extern const _Placeholder<3> _3;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  extern const _Placeholder<4> _4;</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  extern const _Placeholder<5> _5;</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  extern const _Placeholder<6> _6;</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  extern const _Placeholder<7> _7;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  extern const _Placeholder<8> _8;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  extern const _Placeholder<9> _9;</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  extern const _Placeholder<10> _10;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  extern const _Placeholder<11> _11;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  extern const _Placeholder<12> _12;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  extern const _Placeholder<13> _13;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  extern const _Placeholder<14> _14;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  extern const _Placeholder<15> _15;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  extern const _Placeholder<16> _16;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  extern const _Placeholder<17> _17;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  extern const _Placeholder<18> _18;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  extern const _Placeholder<19> _19;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  extern const _Placeholder<20> _20;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  extern const _Placeholder<21> _21;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  extern const _Placeholder<22> _22;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  extern const _Placeholder<23> _23;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  extern const _Placeholder<24> _24;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  extern const _Placeholder<25> _25;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  extern const _Placeholder<26> _26;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  extern const _Placeholder<27> _27;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  extern const _Placeholder<28> _28;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  extern const _Placeholder<29> _29;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </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>  * Partial specialization of is_placeholder that provides the placeholder</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  * number for the placeholder objects defined by libstdc++.</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  * @ingroup binders</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  */</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  template<int _Num></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  struct is_placeholder<_Placeholder<_Num> ></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  : public integral_constant<int, _Num></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</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>  template<int _Num></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  struct is_placeholder<const _Placeholder<_Num> ></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  : public integral_constant<int, _Num></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  { };</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  // Like tuple_element_t but SFINAE-friendly.</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  template<std::size_t __i, typename _Tuple></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  using _Safe_tuple_element_t</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  = typename enable_if<(__i < tuple_size<_Tuple>::value),</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  tuple_element<__i, _Tuple>>::type::type;</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>  /**</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  * Maps an argument to bind() into an actual argument to the bound</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  * function object [func.bind.bind]/10. Only the first parameter should</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  * be specified: the rest are used to determine among the various</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  * implementations. Note that, although this class is a function</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  * object, it isn't entirely normal because it takes only two</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  * parameters regardless of the number of parameters passed to the</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  * bind expression. The first parameter is the bound argument and</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  * the second parameter is a tuple containing references to the</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  * rest of the arguments.</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  */</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  template<typename _Arg,</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  bool _IsBindExp = is_bind_expression<_Arg>::value,</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  bool _IsPlaceholder = (is_placeholder<_Arg>::value > 0)></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  class _Mu;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  /**</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  * If the argument is reference_wrapper<_Tp>, returns the</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  * underlying reference.</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  * C++11 [func.bind.bind] p10 bullet 1.</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  */</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  template<typename _Tp></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  class _Mu<reference_wrapper<_Tp>, false, false></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  {</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  public:</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  /* Note: This won't actually work for const volatile</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  * reference_wrappers, because reference_wrapper::get() is const</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  * but not volatile-qualified. This might be a defect in the TR.</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  */</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  template<typename _CVRef, typename _Tuple></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  _Tp&</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  operator()(_CVRef& __arg, _Tuple&) const volatile</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  { return __arg.get(); }</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  };</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  /**</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  * If the argument is a bind expression, we invoke the underlying</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  * function object with the same cv-qualifiers as we are given and</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  * pass along all of our arguments (unwrapped).</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  * C++11 [func.bind.bind] p10 bullet 2.</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  */</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  template<typename _Arg></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  class _Mu<_Arg, true, false></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  {</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  public:</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  template<typename _CVArg, typename... _Args></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  auto</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  operator()(_CVArg& __arg,</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  tuple<_Args...>& __tuple) const volatile</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  -> decltype(__arg(declval<_Args>()...))</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  {</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  // Construct an index tuple and forward to __call</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  typedef typename _Build_index_tuple<sizeof...(_Args)>::__type</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  _Indexes;</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  return this->__call(__arg, __tuple, _Indexes());</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</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>  private:</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  // Invokes the underlying function object __arg by unpacking all</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  // of the arguments in the tuple.</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  template<typename _CVArg, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  auto</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  __call(_CVArg& __arg, tuple<_Args...>& __tuple,</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  const _Index_tuple<_Indexes...>&) const volatile</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  -> decltype(__arg(declval<_Args>()...))</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  {</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  return __arg(std::get<_Indexes>(std::move(__tuple))...);</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  }</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  };</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>  /**</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  * If the argument is a placeholder for the Nth argument, returns</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  * a reference to the Nth argument to the bind function object.</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  * C++11 [func.bind.bind] p10 bullet 3.</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>  template<typename _Arg></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  class _Mu<_Arg, false, true></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  {</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  public:</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  template<typename _Tuple></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  _Safe_tuple_element_t<(is_placeholder<_Arg>::value - 1), _Tuple>&&</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  operator()(const volatile _Arg&, _Tuple& __tuple) const volatile</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>  return</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  ::std::get<(is_placeholder<_Arg>::value - 1)>(std::move(__tuple));</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  }</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  };</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>  /**</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  * If the argument is just a value, returns a reference to that</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  * value. The cv-qualifiers on the reference are determined by the caller.</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  * C++11 [func.bind.bind] p10 bullet 4.</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  */</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  template<typename _Arg></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  class _Mu<_Arg, false, false></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  {</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  public:</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  template<typename _CVArg, typename _Tuple></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  _CVArg&&</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  operator()(_CVArg&& __arg, _Tuple&) const volatile</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  { return std::forward<_CVArg>(__arg); }</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> </div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  // std::get<I> for volatile-qualified tuples</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  template<std::size_t _Ind, typename... _Tp></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  inline auto</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  __volget(volatile tuple<_Tp...>& __tuple)</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  -> __tuple_element_t<_Ind, tuple<_Tp...>> volatile&</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  { return std::get<_Ind>(const_cast<tuple<_Tp...>&>(__tuple)); }</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  // std::get<I> for const-volatile-qualified tuples</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  template<std::size_t _Ind, typename... _Tp></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  inline auto</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  __volget(const volatile tuple<_Tp...>& __tuple)</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  -> __tuple_element_t<_Ind, tuple<_Tp...>> const volatile&</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  { return std::get<_Ind>(const_cast<const tuple<_Tp...>&>(__tuple)); }</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  /// Type of the function object returned from bind().</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  template<typename _Signature></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  struct _Bind;</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  template<typename _Functor, typename... _Bound_args></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  class _Bind<_Functor(_Bound_args...)></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  : public _Weak_result_type<_Functor></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  {</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  typedef typename _Build_index_tuple<sizeof...(_Bound_args)>::__type</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  _Bound_indexes;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  _Functor _M_f;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  tuple<_Bound_args...> _M_bound_args;</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>  // Call unqualified</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  template<typename _Result, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  _Result</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>)</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  {</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  return std::__invoke(_M_f,</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  _Mu<_Bound_args>()(std::get<_Indexes>(_M_bound_args), __args)...</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> </div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  // Call as const</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  template<typename _Result, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  _Result</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  __call_c(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const</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>  return std::__invoke(_M_f,</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  _Mu<_Bound_args>()(std::get<_Indexes>(_M_bound_args), __args)...</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  );</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  }</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  // Call as volatile</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  template<typename _Result, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  _Result</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  __call_v(tuple<_Args...>&& __args,</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  _Index_tuple<_Indexes...>) volatile</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>  return std::__invoke(_M_f,</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  _Mu<_Bound_args>()(__volget<_Indexes>(_M_bound_args), __args)...</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  );</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  }</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  // Call as const volatile</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  template<typename _Result, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  _Result</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  __call_c_v(tuple<_Args...>&& __args,</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  _Index_tuple<_Indexes...>) const volatile</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  {</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  return std::__invoke(_M_f,</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  _Mu<_Bound_args>()(__volget<_Indexes>(_M_bound_args), __args)...</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  );</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  }</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>  template<typename _BoundArg, typename _CallArgs></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  using _Mu_type = decltype(</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  _Mu<typename remove_cv<_BoundArg>::type>()(</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  std::declval<_BoundArg&>(), std::declval<_CallArgs&>()) );</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  template<typename _Fn, typename _CallArgs, typename... _BArgs></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  using _Res_type_impl</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  = typename result_of< _Fn&(_Mu_type<_BArgs, _CallArgs>&&...) >::type;</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>  template<typename _CallArgs></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  using _Res_type = _Res_type_impl<_Functor, _CallArgs, _Bound_args...>;</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  template<typename _CallArgs></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  using __dependent = typename</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  enable_if<bool(tuple_size<_CallArgs>::value+1), _Functor>::type;</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> </div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  template<typename _CallArgs, template<class> class __cv_quals></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  using _Res_type_cv = _Res_type_impl<</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  typename __cv_quals<__dependent<_CallArgs>>::type,</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  _CallArgs,</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  typename __cv_quals<_Bound_args>::type...>;</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  public:</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  template<typename... _Args></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  explicit _Bind(const _Functor& __f, _Args&&... __args)</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  : _M_f(__f), _M_bound_args(std::forward<_Args>(__args)...)</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  { }</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> </div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  template<typename... _Args></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  explicit _Bind(_Functor&& __f, _Args&&... __args)</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  : _M_f(std::move(__f)), _M_bound_args(std::forward<_Args>(__args)...)</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>  _Bind(const _Bind&) = default;</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span> </div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  _Bind(_Bind&& __b)</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  : _M_f(std::move(__b._M_f)), _M_bound_args(std::move(__b._M_bound_args))</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  { }</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>  // Call unqualified</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  template<typename... _Args,</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  typename _Result = _Res_type<tuple<_Args...>>></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  _Result</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  operator()(_Args&&... __args)</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  {</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  return this->__call<_Result>(</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  _Bound_indexes());</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> </div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  // Call as const</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  template<typename... _Args,</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  typename _Result = _Res_type_cv<tuple<_Args...>, add_const>></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  _Result</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  operator()(_Args&&... __args) const</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  {</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  return this->__call_c<_Result>(</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  _Bound_indexes());</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  }</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> #if __cplusplus > 201402L</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> # define _GLIBCXX_DEPR_BIND \</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  [[deprecated("std::bind does not support volatile in C++17")]]</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> #else</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> # define _GLIBCXX_DEPR_BIND</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> #endif</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  // Call as volatile</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  template<typename... _Args,</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  typename _Result = _Res_type_cv<tuple<_Args...>, add_volatile>></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  _GLIBCXX_DEPR_BIND</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  _Result</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  operator()(_Args&&... __args) volatile</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>  return this->__call_v<_Result>(</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  _Bound_indexes());</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> </div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  // Call as const volatile</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  template<typename... _Args,</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  typename _Result = _Res_type_cv<tuple<_Args...>, add_cv>></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  _GLIBCXX_DEPR_BIND</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  _Result</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  operator()(_Args&&... __args) const volatile</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  {</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  return this->__call_c_v<_Result>(</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  _Bound_indexes());</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</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> </div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  /// Type of the function object returned from bind<R>().</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  template<typename _Result, typename _Signature></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  struct _Bind_result;</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> </div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  template<typename _Result, typename _Functor, typename... _Bound_args></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  class _Bind_result<_Result, _Functor(_Bound_args...)></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>  typedef typename _Build_index_tuple<sizeof...(_Bound_args)>::__type</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  _Bound_indexes;</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span> </div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  _Functor _M_f;</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  tuple<_Bound_args...> _M_bound_args;</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>  // sfinae types</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  template<typename _Res></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  using __enable_if_void</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  = typename enable_if<is_void<_Res>{}>::type;</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> </div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  template<typename _Res></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  using __disable_if_void</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  = typename enable_if<!is_void<_Res>{}, _Result>::type;</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> </div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  // Call unqualified</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  __disable_if_void<_Res></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>)</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  {</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  return std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  (std::get<_Indexes>(_M_bound_args), __args)...);</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  }</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> </div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  // Call unqualified, return void</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  __enable_if_void<_Res></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>)</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  {</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  (std::get<_Indexes>(_M_bound_args), __args)...);</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  }</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> </div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  // Call as const</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  __disable_if_void<_Res></div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  {</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  return std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  (std::get<_Indexes>(_M_bound_args), __args)...);</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  }</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> </div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  // Call as const, return void</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  __enable_if_void<_Res></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  {</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  (std::get<_Indexes>(_M_bound_args), __args)...);</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> </div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  // Call as volatile</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  __disable_if_void<_Res></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) volatile</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  {</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  return std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  (__volget<_Indexes>(_M_bound_args), __args)...);</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  }</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>  // Call as volatile, return void</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  __enable_if_void<_Res></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) volatile</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>  std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  (__volget<_Indexes>(_M_bound_args), __args)...);</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> </div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  // Call as const volatile</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  __disable_if_void<_Res></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  __call(tuple<_Args...>&& __args,</div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  _Index_tuple<_Indexes...>) const volatile</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  {</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  return std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  (__volget<_Indexes>(_M_bound_args), __args)...);</div><div class="line"><a name="l00613"></a><span class="lineno"> 613</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>  // Call as const volatile, return void</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  template<typename _Res, typename... _Args, std::size_t... _Indexes></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  __enable_if_void<_Res></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  __call(tuple<_Args...>&& __args,</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  _Index_tuple<_Indexes...>) const volatile</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  {</div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  std::__invoke(_M_f, _Mu<_Bound_args>()</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  (__volget<_Indexes>(_M_bound_args), __args)...);</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> </div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  public:</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  typedef _Result result_type;</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>  template<typename... _Args></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  explicit _Bind_result(const _Functor& __f, _Args&&... __args)</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  : _M_f(__f), _M_bound_args(std::forward<_Args>(__args)...)</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> </div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  template<typename... _Args></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  explicit _Bind_result(_Functor&& __f, _Args&&... __args)</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  : _M_f(std::move(__f)), _M_bound_args(std::forward<_Args>(__args)...)</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  { }</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> </div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  _Bind_result(const _Bind_result&) = default;</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>  _Bind_result(_Bind_result&& __b)</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  : _M_f(std::move(__b._M_f)), _M_bound_args(std::move(__b._M_bound_args))</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  { }</div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> </div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  // Call unqualified</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  template<typename... _Args></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  result_type</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  operator()(_Args&&... __args)</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>  return this->__call<_Result>(</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  _Bound_indexes());</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  }</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span> </div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  // Call as const</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  template<typename... _Args></div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  result_type</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  operator()(_Args&&... __args) const</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  {</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  return this->__call<_Result>(</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  _Bound_indexes());</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  }</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  // Call as volatile</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  template<typename... _Args></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  _GLIBCXX_DEPR_BIND</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  result_type</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  operator()(_Args&&... __args) volatile</div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  {</div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  return this->__call<_Result>(</div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  _Bound_indexes());</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  }</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>  // Call as const volatile</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  template<typename... _Args></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  _GLIBCXX_DEPR_BIND</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  result_type</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  operator()(_Args&&... __args) const volatile</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>  return this->__call<_Result>(</div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  std::forward_as_tuple(std::forward<_Args>(__args)...),</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  _Bound_indexes());</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>  };</div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span> #undef _GLIBCXX_DEPR_BIND</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>  /**</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  * @brief Class template _Bind is always a bind expression.</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  * @ingroup binders</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>  template<typename _Signature></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  struct is_bind_expression<_Bind<_Signature> ></div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  : public true_type { };</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span> </div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  /**</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  * @brief Class template _Bind is always a bind expression.</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  * @ingroup binders</div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  */</div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  template<typename _Signature></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  struct is_bind_expression<const _Bind<_Signature> ></div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  : public true_type { };</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span> </div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  /**</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  * @brief Class template _Bind is always a bind expression.</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  * @ingroup binders</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  */</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  template<typename _Signature></div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  struct is_bind_expression<volatile _Bind<_Signature> ></div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  : public true_type { };</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> </div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  /**</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  * @brief Class template _Bind is always a bind expression.</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  * @ingroup binders</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  */</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  template<typename _Signature></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  struct is_bind_expression<const volatile _Bind<_Signature>></div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  : public true_type { };</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> </div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  /**</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  * @brief Class template _Bind_result is always a bind expression.</div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  * @ingroup binders</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  */</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  template<typename _Result, typename _Signature></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  struct is_bind_expression<_Bind_result<_Result, _Signature>></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  : public true_type { };</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> </div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  /**</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  * @brief Class template _Bind_result is always a bind expression.</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  * @ingroup binders</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  */</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  template<typename _Result, typename _Signature></div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  struct is_bind_expression<const _Bind_result<_Result, _Signature>></div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  : public true_type { };</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>  /**</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  * @brief Class template _Bind_result is always a bind expression.</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  * @ingroup binders</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  */</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  template<typename _Result, typename _Signature></div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  struct is_bind_expression<volatile _Bind_result<_Result, _Signature>></div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  : public true_type { };</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span> </div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  /**</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  * @brief Class template _Bind_result is always a bind expression.</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  * @ingroup binders</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  */</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  template<typename _Result, typename _Signature></div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  struct is_bind_expression<const volatile _Bind_result<_Result, _Signature>></div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  : public true_type { };</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span> </div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  template<typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  struct _Bind_check_arity { };</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span> </div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  template<typename _Ret, typename... _Args, typename... _BoundArgs></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  struct _Bind_check_arity<_Ret (*)(_Args...), _BoundArgs...></div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  {</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  static_assert(sizeof...(_BoundArgs) == sizeof...(_Args),</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  "Wrong number of arguments for function");</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> </div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  template<typename _Ret, typename... _Args, typename... _BoundArgs></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  struct _Bind_check_arity<_Ret (*)(_Args......), _BoundArgs...></div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  {</div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  static_assert(sizeof...(_BoundArgs) >= sizeof...(_Args),</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  "Wrong number of arguments for function");</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  };</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>  template<typename _Tp, typename _Class, typename... _BoundArgs></div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  struct _Bind_check_arity<_Tp _Class::*, _BoundArgs...></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>  using _Arity = typename _Mem_fn<_Tp _Class::*>::_Arity;</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  using _Varargs = typename _Mem_fn<_Tp _Class::*>::_Varargs;</div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  static_assert(_Varargs::value</div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  ? sizeof...(_BoundArgs) >= _Arity::value + 1</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  : sizeof...(_BoundArgs) == _Arity::value + 1,</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  "Wrong number of arguments for pointer-to-member");</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> </div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  // Trait type used to remove std::bind() from overload set via SFINAE</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  // when first argument has integer type, so that std::bind() will</div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  // not be a better match than ::bind() from the BSD Sockets API.</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  template<typename _Tp, typename _Tp2 = typename decay<_Tp>::type></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  using __is_socketlike = __or_<is_integral<_Tp2>, is_enum<_Tp2>>;</div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span> </div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  template<bool _SocketLike, typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  struct _Bind_helper</div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...></div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  {</div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  typedef typename decay<_Func>::type __func_type;</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  typedef _Bind<__func_type(typename decay<_BoundArgs>::type...)> type;</div><div class="line"><a name="l00792"></a><span class="lineno"> 792</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>  // Partial specialization for is_socketlike == true, does not define</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  // nested type so std::bind() will not participate in overload resolution</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  // when the first argument might be a socket file descriptor.</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  template<typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  struct _Bind_helper<true, _Func, _BoundArgs...></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> </div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  /**</div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  * @brief Function template for std::bind.</div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  * @ingroup binders</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>  template<typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  inline typename</div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  _Bind_helper<__is_socketlike<_Func>::value, _Func, _BoundArgs...>::type</div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  bind(_Func&& __f, _BoundArgs&&... __args)</div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  {</div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  typedef _Bind_helper<false, _Func, _BoundArgs...> __helper_type;</div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  return typename __helper_type::type(std::forward<_Func>(__f),</div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  std::forward<_BoundArgs>(__args)...);</div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  }</div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span> </div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  template<typename _Result, typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  struct _Bindres_helper</div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...></div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  {</div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  typedef typename decay<_Func>::type __functor_type;</div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  typedef _Bind_result<_Result,</div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  __functor_type(typename decay<_BoundArgs>::type...)></div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  type;</div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  };</div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span> </div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  /**</div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  * @brief Function template for std::bind<R>.</div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  * @ingroup binders</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>  template<typename _Result, typename _Func, typename... _BoundArgs></div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  inline</div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  typename _Bindres_helper<_Result, _Func, _BoundArgs...>::type</div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  bind(_Func&& __f, _BoundArgs&&... __args)</div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  {</div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  typedef _Bindres_helper<_Result, _Func, _BoundArgs...> __helper_type;</div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  return typename __helper_type::type(std::forward<_Func>(__f),</div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  std::forward<_BoundArgs>(__args)...);</div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  }</div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span> #if __cplusplus >= 201402L</div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  /// Generalized negator.</div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  template<typename _Fn></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  class _Not_fn</div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  {</div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  template<typename _Fn2, typename... _Args></div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  using __inv_res_t = typename __invoke_result<_Fn2, _Args...>::type;</div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span> </div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  template<typename _Tp></div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  static decltype(!std::declval<_Tp>())</div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  _S_not() noexcept(noexcept(!std::declval<_Tp>()));</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>  public:</div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  template<typename _Fn2></div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  _Not_fn(_Fn2&& __fn, int)</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  : _M_fn(std::forward<_Fn2>(__fn)) { }</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>  _Not_fn(const _Not_fn& __fn) = default;</div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  _Not_fn(_Not_fn&& __fn) = default;</div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  ~_Not_fn() = default;</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> </div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  // Macro to define operator() with given cv-qualifiers ref-qualifiers,</div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  // forwarding _M_fn and the function arguments with the same qualifiers,</div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  // and deducing the return type and exception-specification.</div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span> #define _GLIBCXX_NOT_FN_CALL_OP( _QUALS ) \</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  template<typename... _Args> \</div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  decltype(_S_not<__inv_res_t<_Fn _QUALS, _Args...>>()) \</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  operator()(_Args&&... __args) _QUALS \</div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  noexcept(__is_nothrow_invocable<_Fn _QUALS, _Args...>::value \</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  && noexcept(_S_not<__inv_res_t<_Fn _QUALS, _Args...>>())) \</div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  { \</div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  return !std::__invoke(std::forward< _Fn _QUALS >(_M_fn), \</div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  std::forward<_Args>(__args)...); \</div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  }</div><div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  _GLIBCXX_NOT_FN_CALL_OP( & )</div><div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  _GLIBCXX_NOT_FN_CALL_OP( const & )</div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  _GLIBCXX_NOT_FN_CALL_OP( && )</div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  _GLIBCXX_NOT_FN_CALL_OP( const && )</div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span> #undef _GLIBCXX_NOT_FN_CALL</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>  private:</div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  _Fn _M_fn;</div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  };</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>  template<typename _Tp, typename _Pred></div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  struct __is_byte_like : false_type { };</div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span> </div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  template<typename _Tp></div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  struct __is_byte_like<_Tp, equal_to<_Tp>></div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  : __bool_constant<sizeof(_Tp) == 1 && is_integral<_Tp>::value> { };</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>  template<typename _Tp></div><div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  struct __is_byte_like<_Tp, equal_to<void>></div><div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  : __bool_constant<sizeof(_Tp) == 1 && is_integral<_Tp>::value> { };</div><div class="line"><a name="l00893"></a><span class="lineno"> 893</span> </div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span> #if __cplusplus >= 201703L</div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  // Declare std::byte (full definition is in <cstddef>).</div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  enum class byte : unsigned char;</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>  template<></div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  struct __is_byte_like<byte, equal_to<byte>></div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  : true_type { };</div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span> </div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  template<></div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  struct __is_byte_like<byte, equal_to<void>></div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  : true_type { };</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> #define __cpp_lib_not_fn 201603</div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  /// [func.not_fn] Function template not_fn</div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  template<typename _Fn></div><div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  inline auto</div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  not_fn(_Fn&& __fn)</div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  noexcept(std::is_nothrow_constructible<std::decay_t<_Fn>, _Fn&&>::value)</div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  {</div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  return _Not_fn<std::decay_t<_Fn>>{std::forward<_Fn>(__fn), 0};</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> </div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  // Searchers</div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span> #define __cpp_lib_boyer_moore_searcher 201603</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>  template<typename _ForwardIterator1, typename _BinaryPredicate = equal_to<>></div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  class default_searcher</div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  {</div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  public:</div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  default_searcher(_ForwardIterator1 __pat_first,</div><div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  _ForwardIterator1 __pat_last,</div><div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  _BinaryPredicate __pred = _BinaryPredicate())</div><div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  : _M_m(__pat_first, __pat_last, std::move(__pred))</div><div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  { }</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>  template<typename _ForwardIterator2></div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  pair<_ForwardIterator2, _ForwardIterator2></div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  operator()(_ForwardIterator2 __first, _ForwardIterator2 __last) const</div><div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  {</div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  _ForwardIterator2 __first_ret =</div><div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  std::search(__first, __last, std::get<0>(_M_m), std::get<1>(_M_m),</div><div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  std::get<2>(_M_m));</div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  auto __ret = std::make_pair(__first_ret, __first_ret);</div><div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  if (__ret.first != __last)</div><div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  std::advance(__ret.second, std::distance(std::get<0>(_M_m),</div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  std::get<1>(_M_m)));</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  return __ret;</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>  private:</div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  tuple<_ForwardIterator1, _ForwardIterator1, _BinaryPredicate> _M_m;</div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  };</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>  template<typename _Key, typename _Tp, typename _Hash, typename _Pred></div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  struct __boyer_moore_map_base</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>  template<typename _RAIter></div><div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  __boyer_moore_map_base(_RAIter __pat, size_t __patlen,</div><div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  _Hash&& __hf, _Pred&& __pred)</div><div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  : _M_bad_char{ __patlen, std::move(__hf), std::move(__pred) }</div><div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  {</div><div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  if (__patlen > 0)</div><div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  for (__diff_type __i = 0; __i < __patlen - 1; ++__i)</div><div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  _M_bad_char[__pat[__i]] = __patlen - 1 - __i;</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> </div><div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  using __diff_type = _Tp;</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>  __diff_type</div><div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  _M_lookup(_Key __key, __diff_type __not_found) const</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>  auto __iter = _M_bad_char.find(__key);</div><div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  if (__iter == _M_bad_char.end())</div><div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  return __not_found;</div><div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  return __iter->second;</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> </div><div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  _Pred</div><div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  _M_pred() const { return _M_bad_char.key_eq(); }</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>  _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _Pred> _M_bad_char;</div><div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  };</div><div class="line"><a name="l00976"></a><span class="lineno"> 976</span> </div><div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  template<typename _Tp, size_t _Len, typename _Pred></div><div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  struct __boyer_moore_array_base</div><div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  {</div><div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  template<typename _RAIter, typename _Unused></div><div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  __boyer_moore_array_base(_RAIter __pat, size_t __patlen,</div><div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  _Unused&&, _Pred&& __pred)</div><div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  : _M_bad_char{ _GLIBCXX_STD_C::array<_Tp, _Len>{}, std::move(__pred) }</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>  std::get<0>(_M_bad_char).fill(__patlen);</div><div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  if (__patlen > 0)</div><div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  for (__diff_type __i = 0; __i < __patlen - 1; ++__i)</div><div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  {</div><div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  auto __ch = __pat[__i];</div><div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  using _UCh = make_unsigned_t<decltype(__ch)>;</div><div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  auto __uch = static_cast<_UCh>(__ch);</div><div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  std::get<0>(_M_bad_char)[__uch] = __patlen - 1 - __i;</div><div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  }</div><div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  }</div><div class="line"><a name="l00995"></a><span class="lineno"> 995</span> </div><div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  using __diff_type = _Tp;</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>  template<typename _Key></div><div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  __diff_type</div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  _M_lookup(_Key __key, __diff_type __not_found) const</div><div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  {</div><div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  auto __ukey = static_cast<make_unsigned_t<_Key>>(__key);</div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  if (__ukey >= _Len)</div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  return __not_found;</div><div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  return std::get<0>(_M_bad_char)[__ukey];</div><div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  }</div><div class="line"><a name="l01007"></a><span class="lineno"> 1007</span> </div><div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  const _Pred&</div><div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  _M_pred() const { return std::get<1>(_M_bad_char); }</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>  tuple<_GLIBCXX_STD_C::array<_Tp, _Len>, _Pred> _M_bad_char;</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> </div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  // Use __boyer_moore_array_base when pattern consists of narrow characters</div><div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  // (or std::byte) and uses std::equal_to as the predicate.</div><div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  template<typename _RAIter, typename _Hash, typename _Pred,</div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  typename _Val = typename iterator_traits<_RAIter>::value_type,</div><div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  typename _Diff = typename iterator_traits<_RAIter>::difference_type></div><div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  using __boyer_moore_base_t</div><div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  = conditional_t<__is_byte_like<_Val, _Pred>::value,</div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  __boyer_moore_array_base<_Diff, 256, _Pred>,</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  __boyer_moore_map_base<_Val, _Diff, _Hash, _Pred>>;</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>  template<typename _RAIter, typename _Hash</div><div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  = hash<typename iterator_traits<_RAIter>::value_type>,</div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  typename _BinaryPredicate = equal_to<>></div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  class boyer_moore_searcher</div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  : __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate></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>  using _Base = __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>;</div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  using typename _Base::__diff_type;</div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span> </div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  public:</div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  boyer_moore_searcher(_RAIter __pat_first, _RAIter __pat_last,</div><div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  _Hash __hf = _Hash(),</div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  _BinaryPredicate __pred = _BinaryPredicate());</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span> </div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  template<typename _RandomAccessIterator2></div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  pair<_RandomAccessIterator2, _RandomAccessIterator2></div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  operator()(_RandomAccessIterator2 __first,</div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  _RandomAccessIterator2 __last) const;</div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span> </div><div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  private:</div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  bool</div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  _M_is_prefix(_RAIter __word, __diff_type __len,</div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  __diff_type __pos)</div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  {</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  const auto& __pred = this->_M_pred();</div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  __diff_type __suffixlen = __len - __pos;</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  for (__diff_type __i = 0; __i < __suffixlen; ++__i)</div><div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  if (!__pred(__word[__i], __word[__pos + __i]))</div><div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  return false;</div><div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  return true;</div><div class="line"><a name="l01054"></a><span class="lineno"> 1054</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>  __diff_type</div><div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  _M_suffix_length(_RAIter __word, __diff_type __len,</div><div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  __diff_type __pos)</div><div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  {</div><div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  const auto& __pred = this->_M_pred();</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  __diff_type __i = 0;</div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  while (__pred(__word[__pos - __i], __word[__len - 1 - __i])</div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  && __i < __pos)</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  {</div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  ++__i;</div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  }</div><div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  return __i;</div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  }</div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span> </div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  template<typename _Tp></div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  __diff_type</div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  _M_bad_char_shift(_Tp __c) const</div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  { return this->_M_lookup(__c, _M_pat_end - _M_pat); }</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>  _RAIter _M_pat;</div><div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  _RAIter _M_pat_end;</div><div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  _GLIBCXX_STD_C::vector<__diff_type> _M_good_suffix;</div><div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  };</div><div class="line"><a name="l01079"></a><span class="lineno"> 1079</span> </div><div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  template<typename _RAIter, typename _Hash</div><div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  = hash<typename iterator_traits<_RAIter>::value_type>,</div><div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  typename _BinaryPredicate = equal_to<>></div><div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  class boyer_moore_horspool_searcher</div><div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  : __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate></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>  using _Base = __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>;</div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  using typename _Base::__diff_type;</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>  public:</div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  boyer_moore_horspool_searcher(_RAIter __pat,</div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  _RAIter __pat_end,</div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  _Hash __hf = _Hash(),</div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  _BinaryPredicate __pred</div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  = _BinaryPredicate())</div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  : _Base(__pat, __pat_end - __pat, std::move(__hf), std::move(__pred)),</div><div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  _M_pat(__pat), _M_pat_end(__pat_end)</div><div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  { }</div><div class="line"><a name="l01098"></a><span class="lineno"> 1098</span> </div><div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  template<typename _RandomAccessIterator2></div><div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  pair<_RandomAccessIterator2, _RandomAccessIterator2></div><div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  operator()(_RandomAccessIterator2 __first,</div><div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  _RandomAccessIterator2 __last) const</div><div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  {</div><div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  const auto& __pred = this->_M_pred();</div><div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  auto __patlen = _M_pat_end - _M_pat;</div><div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  if (__patlen == 0)</div><div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  return std::make_pair(__first, __first);</div><div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>  auto __len = __last - __first;</div><div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  while (__len >= __patlen)</div><div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  {</div><div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  for (auto __scan = __patlen - 1;</div><div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  __pred(__first[__scan], _M_pat[__scan]); --__scan)</div><div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  if (__scan == 0)</div><div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>  return std::make_pair(__first, __first + __patlen);</div><div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>  auto __shift = _M_bad_char_shift(__first[__patlen - 1]);</div><div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  __len -= __shift;</div><div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>  __first += __shift;</div><div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  }</div><div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>  return std::make_pair(__last, __last);</div><div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  }</div><div class="line"><a name="l01121"></a><span class="lineno"> 1121</span> </div><div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  private:</div><div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  template<typename _Tp></div><div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  __diff_type</div><div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  _M_bad_char_shift(_Tp __c) const</div><div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  { return this->_M_lookup(__c, _M_pat_end - _M_pat); }</div><div class="line"><a name="l01127"></a><span class="lineno"> 1127</span> </div><div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  _RAIter _M_pat;</div><div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  _RAIter _M_pat_end;</div><div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  };</div><div class="line"><a name="l01131"></a><span class="lineno"> 1131</span> </div><div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>  template<typename _RAIter, typename _Hash, typename _BinaryPredicate></div><div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  boyer_moore_searcher<_RAIter, _Hash, _BinaryPredicate>::</div><div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  boyer_moore_searcher(_RAIter __pat, _RAIter __pat_end,</div><div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  _Hash __hf, _BinaryPredicate __pred)</div><div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  : _Base(__pat, __pat_end - __pat, std::move(__hf), std::move(__pred)),</div><div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  _M_pat(__pat), _M_pat_end(__pat_end), _M_good_suffix(__pat_end - __pat)</div><div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  {</div><div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  auto __patlen = __pat_end - __pat;</div><div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>  if (__patlen == 0)</div><div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  return;</div><div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>  __diff_type __last_prefix = __patlen - 1;</div><div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  for (__diff_type __p = __patlen - 1; __p >= 0; --__p)</div><div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>  {</div><div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  if (_M_is_prefix(__pat, __patlen, __p + 1))</div><div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  __last_prefix = __p + 1;</div><div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  _M_good_suffix[__p] = __last_prefix + (__patlen - 1 - __p);</div><div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  }</div><div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  for (__diff_type __p = 0; __p < __patlen - 1; ++__p)</div><div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>  {</div><div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  auto __slen = _M_suffix_length(__pat, __patlen, __p);</div><div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>  auto __pos = __patlen - 1 - __slen;</div><div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  if (!__pred(__pat[__p - __slen], __pat[__pos]))</div><div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  _M_good_suffix[__pos] = __patlen - 1 - __p + __slen;</div><div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  }</div><div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  }</div><div class="line"><a name="l01157"></a><span class="lineno"> 1157</span> </div><div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  template<typename _RAIter, typename _Hash, typename _BinaryPredicate></div><div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  template<typename _RandomAccessIterator2></div><div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  pair<_RandomAccessIterator2, _RandomAccessIterator2></div><div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  boyer_moore_searcher<_RAIter, _Hash, _BinaryPredicate>::</div><div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  operator()(_RandomAccessIterator2 __first,</div><div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  _RandomAccessIterator2 __last) const</div><div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  {</div><div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>  auto __patlen = _M_pat_end - _M_pat;</div><div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  if (__patlen == 0)</div><div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>  return std::make_pair(__first, __first);</div><div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  const auto& __pred = this->_M_pred();</div><div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  __diff_type __i = __patlen - 1;</div><div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>  auto __stringlen = __last - __first;</div><div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  while (__i < __stringlen)</div><div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  {</div><div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  __diff_type __j = __patlen - 1;</div><div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>  while (__j >= 0 && __pred(__first[__i], _M_pat[__j]))</div><div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  {</div><div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  --__i;</div><div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  --__j;</div><div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  }</div><div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>  if (__j < 0)</div><div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  {</div><div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  const auto __match = __first + __i + 1;</div><div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  return std::make_pair(__match, __match + __patlen);</div><div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  }</div><div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  __i += std::max(_M_bad_char_shift(__first[__i]),</div><div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  _M_good_suffix[__j]);</div><div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  }</div><div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  return std::make_pair(__last, __last);</div><div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  }</div><div class="line"><a name="l01189"></a><span class="lineno"> 1189</span> </div><div class="line"><a name="l01190"></a><span class="lineno"> 1190</span> #endif // C++17</div><div class="line"><a name="l01191"></a><span class="lineno"> 1191</span> #endif // C++14</div><div class="line"><a name="l01192"></a><span class="lineno"> 1192</span> </div><div class="line"><a name="l01193"></a><span class="lineno"> 1193</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l01194"></a><span class="lineno"> 1194</span> } // namespace std</div><div class="line"><a name="l01195"></a><span class="lineno"> 1195</span> </div><div class="line"><a name="l01196"></a><span class="lineno"> 1196</span> #endif // C++11</div><div class="line"><a name="l01197"></a><span class="lineno"> 1197</span> </div><div class="line"><a name="l01198"></a><span class="lineno"> 1198</span> #endif // _GLIBCXX_FUNCTIONAL</div></div><!-- fragment --></div><!-- contents -->
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