<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libstdc++: string_view Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.15 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('a01013_source.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">string_view</div> </div> </div><!--header--> <div class="contents"> <a href="a01013.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Components for manipulating non-owning sequences of characters -*- C++ -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright (C) 2013-2018 Free Software Foundation, Inc.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// This library is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/** @file experimental/string_view</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is a TS C++ Library header.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">//</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// N3762 basic_string_view library</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">//</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifndef _GLIBCXX_EXPERIMENTAL_STRING_VIEW</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define _GLIBCXX_EXPERIMENTAL_STRING_VIEW 1</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#pragma GCC system_header</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> <span class="preprocessor">#if __cplusplus >= 201402L</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="a17151.html">string</a>></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include <<a class="code" href="a00095.html">limits</a>></span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <<a class="code" href="a00995.html">experimental/bits/lfts_config.h</a>></span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">namespace </span><a class="code" href="a01538.html">std</a> _GLIBCXX_VISIBILITY(default)</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> _GLIBCXX_BEGIN_NAMESPACE_VERSION</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> <span class="keyword">namespace </span>experimental</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">inline</span> <span class="keyword">namespace </span>fundamentals_v1</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#define __cpp_lib_experimental_string_view 201411</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"></span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> /**</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * @class basic_string_view <experimental/string_view></span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * @brief A non-owning reference to a string.</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> *</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * @ingroup strings</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * @ingroup sequences</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * @ingroup experimental</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> *</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * @tparam _CharT Type of character</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * @tparam _Traits Traits for character type, defaults to</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> * char_traits<_CharT>.</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> *</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> * A basic_string_view looks like this:</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> *</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * @code</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * _CharT* _M_str</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * size_t _M_len</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> * @endcode</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> */</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits = std::<span class="keywordtype">char</span>_traits<_CharT>></div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="a10092.html"> 74</a></span>  <span class="keyword">class </span><a class="code" href="a10092.html">basic_string_view</a></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  {</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// types</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">using</span> traits_type = _Traits;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">using</span> value_type = _CharT;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">using</span> pointer = <span class="keyword">const</span> _CharT*;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">using</span> const_pointer = <span class="keyword">const</span> _CharT*;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">using</span> reference = <span class="keyword">const</span> _CharT&;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">using</span> const_reference = <span class="keyword">const</span> _CharT&;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">using</span> const_iterator = <span class="keyword">const</span> _CharT*;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">using</span> iterator = const_iterator;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">using</span> <a class="code" href="a07612.html">const_reverse_iterator</a> = <a class="code" href="a07612.html">std::reverse_iterator<const_iterator></a>;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">using</span> <a class="code" href="a07612.html">reverse_iterator</a> = <a class="code" href="a07612.html">const_reverse_iterator</a>;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">using</span> size_type = size_t;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">using</span> difference_type = ptrdiff_t;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">static</span> constexpr size_type npos = size_type(-1);</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>  <span class="comment">// [string.view.cons], construct/copy</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  constexpr</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="a10092.html">basic_string_view</a>() noexcept</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  : _M_len{0}, _M_str{<span class="keyword">nullptr</span>}</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> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  constexpr <a class="code" href="a10092.html">basic_string_view</a>(<span class="keyword">const</span> <a class="code" href="a10092.html">basic_string_view</a>&) noexcept = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Allocator></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="a10092.html">basic_string_view</a>(<span class="keyword">const</span> <a class="code" href="a04768.html">basic_string</a><_CharT, _Traits,</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  _Allocator>& __str) noexcept</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  : _M_len{__str.length()}, _M_str{__str.data()}</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  { }</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>  constexpr <a class="code" href="a10092.html">basic_string_view</a>(<span class="keyword">const</span> _CharT* __str)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  : _M_len{__str == <span class="keyword">nullptr</span> ? 0 : traits_type::length(__str)},</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  _M_str{__str}</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  { }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  constexpr <a class="code" href="a10092.html">basic_string_view</a>(<span class="keyword">const</span> _CharT* __str, size_type __len)</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  : _M_len{__len},</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  _M_str{__str}</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> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="a10092.html">basic_string_view</a>&</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  operator=(<span class="keyword">const</span> <a class="code" href="a10092.html">basic_string_view</a>&) noexcept = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// [string.view.iterators], iterators</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  constexpr const_iterator</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  begin() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  { <span class="keywordflow">return</span> this->_M_str; }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  constexpr const_iterator</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  end() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  { <span class="keywordflow">return</span> this->_M_str + this->_M_len; }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  constexpr const_iterator</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  cbegin() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  { <span class="keywordflow">return</span> this->_M_str; }</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  constexpr const_iterator</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  cend() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  { <span class="keywordflow">return</span> this->_M_str + this->_M_len; }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="a07612.html">const_reverse_iterator</a></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  rbegin() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  { <span class="keywordflow">return</span> <a class="code" href="a07612.html">const_reverse_iterator</a>(this->end()); }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <a class="code" href="a07612.html">const_reverse_iterator</a></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  rend() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  { <span class="keywordflow">return</span> <a class="code" href="a07612.html">const_reverse_iterator</a>(this->begin()); }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="a07612.html">const_reverse_iterator</a></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  crbegin() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  { <span class="keywordflow">return</span> <a class="code" href="a07612.html">const_reverse_iterator</a>(this->end()); }</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>  <a class="code" href="a07612.html">const_reverse_iterator</a></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  crend() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  { <span class="keywordflow">return</span> <a class="code" href="a07612.html">const_reverse_iterator</a>(this->begin()); }</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// [string.view.capacity], capacity</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  constexpr size_type</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  size() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  { <span class="keywordflow">return</span> this->_M_len; }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  constexpr size_type</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  length() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  { <span class="keywordflow">return</span> _M_len; }</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>  constexpr size_type</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  max_size() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> (npos - <span class="keyword">sizeof</span>(size_type) - <span class="keyword">sizeof</span>(<span class="keywordtype">void</span>*))</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  / <span class="keyword">sizeof</span>(value_type) / 4;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  empty() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  { <span class="keywordflow">return</span> this->_M_len == 0; }</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// [string.view.access], element access</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>  constexpr <span class="keyword">const</span> _CharT&</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  operator[](size_type __pos)<span class="keyword"> const</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// TODO: Assert to restore in a way compatible with the constexpr.</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// __glibcxx_assert(__pos < this->_M_len);</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> *(this->_M_str + __pos);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  constexpr <span class="keyword">const</span> _CharT&</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  at(size_type __pos)<span class="keyword"> const</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">return</span> __pos < this->_M_len</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  ? *(this->_M_str + __pos)</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  : (__throw_out_of_range_fmt(__N(<span class="stringliteral">"basic_string_view::at: __pos "</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="stringliteral">"(which is %zu) >= this->size() "</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="stringliteral">"(which is %zu)"</span>),</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  __pos, this->size()),</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  *this->_M_str);</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  constexpr <span class="keyword">const</span> _CharT&</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  front()<span class="keyword"> const</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// TODO: Assert to restore in a way compatible with the constexpr.</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// __glibcxx_assert(this->_M_len > 0);</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> *this->_M_str;</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> </div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  constexpr <span class="keyword">const</span> _CharT&</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  back()<span class="keyword"> const</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// TODO: Assert to restore in a way compatible with the constexpr.</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// __glibcxx_assert(this->_M_len > 0);</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">return</span> *(this->_M_str + this->_M_len - 1);</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  }</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  constexpr <span class="keyword">const</span> _CharT*</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  data() <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  { <span class="keywordflow">return</span> this->_M_str; }</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// [string.view.modifiers], modifiers:</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  constexpr <span class="keywordtype">void</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  remove_prefix(size_type __n)</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  {</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  __glibcxx_assert(this->_M_len >= __n);</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  this->_M_str += __n;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  this->_M_len -= __n;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  constexpr <span class="keywordtype">void</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  remove_suffix(size_type __n)</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  { this->_M_len -= __n; }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  constexpr <span class="keywordtype">void</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  swap(<a class="code" href="a10092.html">basic_string_view</a>& __sv) noexcept</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  {</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keyword">auto</span> __tmp = *<span class="keyword">this</span>;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  *<span class="keyword">this</span> = __sv;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  __sv = __tmp;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </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>  <span class="comment">// [string.view.ops], string operations:</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>  <span class="keyword">template</span><<span class="keyword">typename</span> _Allocator></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">explicit</span> <span class="keyword">operator</span> <a class="code" href="a04768.html">basic_string<_CharT, _Traits, _Allocator></a>()<span class="keyword"> const</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">return</span> { this->_M_str, this->_M_len };</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Allocator = std::allocator<_CharT>></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <a class="code" href="a04768.html">basic_string<_CharT, _Traits, _Allocator></a></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  to_string(<span class="keyword">const</span> _Allocator& __alloc = _Allocator())<span class="keyword"> const</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">return</span> { this->_M_str, this->_M_len, __alloc };</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</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>  size_type</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  copy(_CharT* __str, size_type __n, size_type __pos = 0)<span class="keyword"> const</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  __glibcxx_requires_string_len(__str, __n);</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">if</span> (__pos > this->_M_len)</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  __throw_out_of_range_fmt(__N(<span class="stringliteral">"basic_string_view::copy: __pos "</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="stringliteral">"(which is %zu) > this->size() "</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="stringliteral">"(which is %zu)"</span>),</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  __pos, this->size());</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  size_type __rlen{<a class="code" href="a01482.html#gad48656de2f272a953455e1fff2532125">std::min</a>(__n, size_type{this->_M_len - __pos})};</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> __begin = this->_M_str + __pos,</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  __end = __begin + __rlen; __begin != __end;)</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  *__str++ = *__begin++;</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">return</span> __rlen;</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="comment">// [string.view.ops], string operations:</span></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>  constexpr <a class="code" href="a10092.html">basic_string_view</a></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  substr(size_type __pos = 0, size_type __n = npos)<span class="keyword"> const</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">return</span> __pos <= this->_M_len</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  ? <a class="code" href="a10092.html">basic_string_view</a>{this->_M_str + __pos,</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="a01482.html#gad48656de2f272a953455e1fff2532125">std::min</a>(__n, size_type{this->_M_len - __pos})}</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  : (__throw_out_of_range_fmt(__N(<span class="stringliteral">"basic_string_view::substr: __pos "</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="stringliteral">"(which is %zu) > this->size() "</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="stringliteral">"(which is %zu)"</span>),</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  __pos, this->size()), <a class="code" href="a10092.html">basic_string_view</a>{});</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  compare(<a class="code" href="a10092.html">basic_string_view</a> __str) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  {</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordtype">int</span> __ret = traits_type::compare(this->_M_str, __str._M_str,</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <a class="code" href="a01482.html#gad48656de2f272a953455e1fff2532125">std::min</a>(this->_M_len, __str._M_len));</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">if</span> (__ret == 0)</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  __ret = _S_compare(this->_M_len, __str._M_len);</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  compare(size_type __pos1, size_type __n1, <a class="code" href="a10092.html">basic_string_view</a> __str)<span class="keyword"> const</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> this->substr(__pos1, __n1).compare(__str); }</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  compare(size_type __pos1, size_type __n1,</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <a class="code" href="a10092.html">basic_string_view</a> __str, size_type __pos2, size_type __n2)<span class="keyword"> const</span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> this->substr(__pos1, __n1).compare(__str.substr(__pos2, __n2)); }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  compare(<span class="keyword">const</span> _CharT* __str) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  { <span class="keywordflow">return</span> this->compare(<a class="code" href="a10092.html">basic_string_view</a>{__str}); }</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  compare(size_type __pos1, size_type __n1, <span class="keyword">const</span> _CharT* __str)<span class="keyword"> const</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> this->substr(__pos1, __n1).compare(<a class="code" href="a10092.html">basic_string_view</a>{__str}); }</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  compare(size_type __pos1, size_type __n1,</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">const</span> _CharT* __str, size_type __n2)<span class="keyword"> const</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span> this->substr(__pos1, __n1)</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  .compare(<a class="code" href="a10092.html">basic_string_view</a>(__str, __n2));</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> </div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  constexpr size_type</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  find(<a class="code" href="a10092.html">basic_string_view</a> __str, size_type __pos = 0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  { <span class="keywordflow">return</span> this->find(__str._M_str, __pos, __str._M_len); }</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  constexpr size_type</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  find(_CharT __c, size_type __pos=0) <span class="keyword">const</span> noexcept;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  constexpr size_type</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  find(<span class="keyword">const</span> _CharT* __str, size_type __pos, size_type __n) <span class="keyword">const</span> noexcept;</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>  constexpr size_type</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  find(<span class="keyword">const</span> _CharT* __str, size_type __pos=0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  { <span class="keywordflow">return</span> this->find(__str, __pos, traits_type::length(__str)); }</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  constexpr size_type</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  rfind(<a class="code" href="a10092.html">basic_string_view</a> __str, size_type __pos = npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  { <span class="keywordflow">return</span> this->rfind(__str._M_str, __pos, __str._M_len); }</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  constexpr size_type</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  rfind(_CharT __c, size_type __pos = npos) <span class="keyword">const</span> noexcept;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  constexpr size_type</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  rfind(<span class="keyword">const</span> _CharT* __str, size_type __pos, size_type __n) <span class="keyword">const</span> noexcept;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  constexpr size_type</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  rfind(<span class="keyword">const</span> _CharT* __str, size_type __pos = npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  { <span class="keywordflow">return</span> this->rfind(__str, __pos, traits_type::length(__str)); }</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>  constexpr size_type</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  find_first_of(<a class="code" href="a10092.html">basic_string_view</a> __str, size_type __pos = 0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  { <span class="keywordflow">return</span> this->find_first_of(__str._M_str, __pos, __str._M_len); }</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  constexpr size_type</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  find_first_of(_CharT __c, size_type __pos = 0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  { <span class="keywordflow">return</span> this->find(__c, __pos); }</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  constexpr size_type</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  find_first_of(<span class="keyword">const</span> _CharT* __str, size_type __pos, size_type __n) <span class="keyword">const</span>;</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> </div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  constexpr size_type</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  find_first_of(<span class="keyword">const</span> _CharT* __str, size_type __pos = 0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  { <span class="keywordflow">return</span> this->find_first_of(__str, __pos, traits_type::length(__str)); }</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> </div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  constexpr size_type</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  find_last_of(<a class="code" href="a10092.html">basic_string_view</a> __str,</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  size_type __pos = npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  { <span class="keywordflow">return</span> this->find_last_of(__str._M_str, __pos, __str._M_len); }</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  constexpr size_type</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  find_last_of(_CharT __c, size_type __pos=npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  { <span class="keywordflow">return</span> this->rfind(__c, __pos); }</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>  constexpr size_type</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  find_last_of(<span class="keyword">const</span> _CharT* __str, size_type __pos, size_type __n) <span class="keyword">const</span>;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  constexpr size_type</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  find_last_of(<span class="keyword">const</span> _CharT* __str, size_type __pos = npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  { <span class="keywordflow">return</span> this->find_last_of(__str, __pos, traits_type::length(__str)); }</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>  constexpr size_type</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  find_first_not_of(<a class="code" href="a10092.html">basic_string_view</a> __str,</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  size_type __pos = 0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  { <span class="keywordflow">return</span> this->find_first_not_of(__str._M_str, __pos, __str._M_len); }</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  constexpr size_type</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  find_first_not_of(_CharT __c, size_type __pos = 0) <span class="keyword">const</span> noexcept;</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>  constexpr size_type</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  find_first_not_of(<span class="keyword">const</span> _CharT* __str,</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  size_type __pos, size_type __n) <span class="keyword">const</span>;</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  constexpr size_type</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  find_first_not_of(<span class="keyword">const</span> _CharT* __str, size_type __pos = 0) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  {</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keywordflow">return</span> this->find_first_not_of(__str, __pos,</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  traits_type::length(__str));</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  }</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>  constexpr size_type</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  find_last_not_of(<a class="code" href="a10092.html">basic_string_view</a> __str,</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  size_type __pos = npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  { <span class="keywordflow">return</span> this->find_last_not_of(__str._M_str, __pos, __str._M_len); }</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>  constexpr size_type</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  find_last_not_of(_CharT __c, size_type __pos = npos) <span class="keyword">const</span> noexcept;</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  constexpr size_type</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  find_last_not_of(<span class="keyword">const</span> _CharT* __str,</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  size_type __pos, size_type __n) <span class="keyword">const</span>;</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  constexpr size_type</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  find_last_not_of(<span class="keyword">const</span> _CharT* __str,</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  size_type __pos = npos) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  {</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordflow">return</span> this->find_last_not_of(__str, __pos,</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  traits_type::length(__str));</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  }</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> </div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">int</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  _S_compare(size_type __n1, size_type __n2) noexcept</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>  <span class="keywordflow">return</span> difference_type(__n1 - __n2) > <a class="code" href="a02520.html#a27b481b529885d1b1b714c7fe69a1945">std::numeric_limits<int>::max</a>()</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  ? <a class="code" href="a02520.html#a27b481b529885d1b1b714c7fe69a1945">std::numeric_limits<int>::max</a>()</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  : difference_type(__n1 - __n2) < <a class="code" href="a02520.html#aae25581f91ebab83161d2da3fe0cdb9d">std::numeric_limits<int>::min</a>()</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  ? <a class="code" href="a02520.html#aae25581f91ebab83161d2da3fe0cdb9d">std::numeric_limits<int>::min</a>()</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  : static_cast<int>(difference_type(__n1 - __n2));</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  }</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>  <span class="keywordtype">size_t</span> _M_len;</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keyword">const</span> _CharT* _M_str;</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>  <span class="comment">// [string.view.comparison], non-member basic_string_view comparison functions</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> </div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keyword">namespace </span>__detail</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  {</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="comment">// Identity transform to create a non-deduced context, so that only one</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="comment">// argument participates in template argument deduction and the other</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="comment">// argument gets implicitly converted to the deduced type. See n3766.html.</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keyword">using</span> __idt = <a class="code" href="a01476.html#ga3ef38e934006ae2422e5a7f136238d22">common_type_t<_Tp></a>;</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> </div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  operator==(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  { <span class="keywordflow">return</span> __x.size() == __y.size() && __x.compare(__y) == 0; }</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>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  operator==(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  __detail::__idt<basic_string_view<_CharT, _Traits>> __y) noexcept</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  { <span class="keywordflow">return</span> __x.size() == __y.size() && __x.compare(__y) == 0; }</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>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  operator==(__detail::__idt<basic_string_view<_CharT, _Traits>> __x,</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  { <span class="keywordflow">return</span> __x.size() == __y.size() && __x.compare(__y) == 0; }</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>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  operator!=(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  { <span class="keywordflow">return</span> !(__x == __y); }</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span> </div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  operator!=(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  __detail::__idt<basic_string_view<_CharT, _Traits>> __y) noexcept</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  { <span class="keywordflow">return</span> !(__x == __y); }</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span> </div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  operator!=(__detail::__idt<basic_string_view<_CharT, _Traits>> __x,</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  { <span class="keywordflow">return</span> !(__x == __y); }</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  operator< (basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  { <span class="keywordflow">return</span> __x.compare(__y) < 0; }</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> </div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  operator< (basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  __detail::__idt<basic_string_view<_CharT, _Traits>> __y) noexcept</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  { <span class="keywordflow">return</span> __x.compare(__y) < 0; }</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> </div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  operator< (__detail::__idt<basic_string_view<_CharT, _Traits>> __x,</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  { <span class="keywordflow">return</span> __x.compare(__y) < 0; }</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  operator> (basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  { <span class="keywordflow">return</span> __x.compare(__y) > 0; }</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  operator> (basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  __detail::__idt<basic_string_view<_CharT, _Traits>> __y) noexcept</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  { <span class="keywordflow">return</span> __x.compare(__y) > 0; }</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  operator> (__detail::__idt<basic_string_view<_CharT, _Traits>> __x,</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  { <span class="keywordflow">return</span> __x.compare(__y) > 0; }</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> </div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  operator<=(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  { <span class="keywordflow">return</span> __x.compare(__y) <= 0; }</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> </div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  operator<=(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  __detail::__idt<basic_string_view<_CharT, _Traits>> __y) noexcept</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  { <span class="keywordflow">return</span> __x.compare(__y) <= 0; }</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  operator<=(__detail::__idt<basic_string_view<_CharT, _Traits>> __x,</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  { <span class="keywordflow">return</span> __x.compare(__y) <= 0; }</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> </div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  operator>=(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  { <span class="keywordflow">return</span> __x.compare(__y) >= 0; }</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  operator>=(basic_string_view<_CharT, _Traits> __x,</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  __detail::__idt<basic_string_view<_CharT, _Traits>> __y) noexcept</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  { <span class="keywordflow">return</span> __x.compare(__y) >= 0; }</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> </div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  constexpr <span class="keywordtype">bool</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  operator>=(__detail::__idt<basic_string_view<_CharT, _Traits>> __x,</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  basic_string_view<_CharT, _Traits> __y) noexcept</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  { <span class="keywordflow">return</span> __x.compare(__y) >= 0; }</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> </div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="comment">// [string.view.io], Inserters and extractors</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="keyword">inline</span> basic_ostream<_CharT, _Traits>&</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <a class="code" href="a01538.html#a20aaa750b7ddf43635768c7b2d0385e6">operator<<</a>(basic_ostream<_CharT, _Traits>& __os,</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  basic_string_view<_CharT,_Traits> __str)</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  { <span class="keywordflow">return</span> __ostream_insert(__os, __str.data(), __str.size()); }</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span> </div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span> </div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="comment">// basic_string_view typedef names</span></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>  <span class="keyword">using</span> string_view = basic_string_view<char>;</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keyword">using</span> wstring_view = basic_string_view<wchar_t>;</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_C99_STDINT_TR1</span></div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keyword">using</span> u16string_view = basic_string_view<char16_t>;</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keyword">using</span> u32string_view = basic_string_view<char32_t>;</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> } <span class="comment">// namespace fundamentals_v1</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> } <span class="comment">// namespace experimental</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> </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>  <span class="comment">// [string.view.hash], hash support:</span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keyword">struct </span>hash;</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> </div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keyword">struct </span>hash<experimental::string_view></div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  : <span class="keyword">public</span> __hash_base<size_t, experimental::string_view></div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  {</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  operator()(<span class="keyword">const</span> experimental::string_view& __str) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  { <span class="keywordflow">return</span> std::_Hash_impl::hash(__str.data(), __str.length()); }</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  };</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> </div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keyword">struct </span>__is_fast_hash<hash<experimental::string_view>> : <a class="code" href="a03040.html">std::false_type</a></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  { };</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> </div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keyword">struct </span>hash<experimental::wstring_view></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  : <span class="keyword">public</span> __hash_base<size_t, wstring></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  {</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  operator()(<span class="keyword">const</span> experimental::wstring_view& __s) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  { <span class="keywordflow">return</span> std::_Hash_impl::hash(__s.data(),</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  __s.length() * <span class="keyword">sizeof</span>(wchar_t)); }</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>  <span class="keyword">template</span><></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="keyword">struct </span>__is_fast_hash<hash<experimental::wstring_view>> : <a class="code" href="a03040.html">std::false_type</a></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  { };</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> </div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_C99_STDINT_TR1</span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="keyword">struct </span>hash<experimental::u16string_view></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  : <span class="keyword">public</span> __hash_base<size_t, experimental::u16string_view></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>  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  operator()(<span class="keyword">const</span> experimental::u16string_view& __s) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  { <span class="keywordflow">return</span> std::_Hash_impl::hash(__s.data(),</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  __s.length() * <span class="keyword">sizeof</span>(char16_t)); }</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  };</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span> </div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keyword">struct </span>__is_fast_hash<hash<experimental::u16string_view>> : <a class="code" href="a03040.html">std::false_type</a></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>  <span class="keyword">template</span><></div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keyword">struct </span>hash<experimental::u32string_view></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  : <span class="keyword">public</span> __hash_base<size_t, experimental::u32string_view></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  {</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  operator()(<span class="keyword">const</span> experimental::u32string_view& __s) <span class="keyword">const</span> noexcept</div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  { <span class="keywordflow">return</span> std::_Hash_impl::hash(__s.data(),</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  __s.length() * <span class="keyword">sizeof</span>(char32_t)); }</div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  };</div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> </div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="keyword">struct </span>__is_fast_hash<hash<experimental::u32string_view>> : <a class="code" href="a03040.html">std::false_type</a></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> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> </div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="keyword">namespace </span>experimental</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span> {</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="comment">// I added these EMSR.</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keyword">inline</span> <span class="keyword">namespace </span>literals</div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  {</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="keyword">inline</span> <span class="keyword">namespace </span>string_view_literals</div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  {</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="preprocessor">#pragma GCC diagnostic push</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="preprocessor">#pragma GCC diagnostic ignored "-Wliteral-suffix"</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keyword">inline</span> constexpr basic_string_view<char></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keyword">operator</span><span class="stringliteral">""</span>sv(<span class="keyword">const</span> <span class="keywordtype">char</span>* __str, <span class="keywordtype">size_t</span> __len) noexcept</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  { <span class="keywordflow">return</span> basic_string_view<char>{__str, __len}; }</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> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keyword">inline</span> constexpr basic_string_view<wchar_t></div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keyword">operator</span><span class="stringliteral">""</span>sv(<span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* __str, <span class="keywordtype">size_t</span> __len) noexcept</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  { <span class="keywordflow">return</span> basic_string_view<wchar_t>{__str, __len}; }</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="preprocessor">#endif</span></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> <span class="preprocessor">#ifdef _GLIBCXX_USE_C99_STDINT_TR1</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="keyword">inline</span> constexpr basic_string_view<char16_t></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keyword">operator</span><span class="stringliteral">""</span>sv(<span class="keyword">const</span> char16_t* __str, <span class="keywordtype">size_t</span> __len) noexcept</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  { <span class="keywordflow">return</span> basic_string_view<char16_t>{__str, __len}; }</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>  <span class="keyword">inline</span> constexpr basic_string_view<char32_t></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keyword">operator</span><span class="stringliteral">""</span>sv(<span class="keyword">const</span> char32_t* __str, <span class="keywordtype">size_t</span> __len) noexcept</div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  { <span class="keywordflow">return</span> basic_string_view<char32_t>{__str, __len}; }</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="preprocessor">#pragma GCC diagnostic pop</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  } <span class="comment">// namespace string_literals</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  } <span class="comment">// namespace literals</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span> } <span class="comment">// namespace experimental</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span> </div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span> } <span class="comment">// namespace std</span></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> </div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="preprocessor">#include <<a class="code" href="a17157.html">experimental/bits/string_view.tcc</a>></span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span> </div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="preprocessor">#endif // __cplusplus <= 201103L</span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> </div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="preprocessor">#endif // _GLIBCXX_EXPERIMENTAL_STRING_VIEW</span></div><div class="ttc" id="a17157_html"><div class="ttname"><a href="a17157.html">string_view.tcc</a></div></div> <div class="ttc" id="a04768_html"><div class="ttname"><a href="a04768.html">std::basic_string</a></div><div class="ttdoc">Managing sequences of characters and character-like objects.</div><div class="ttdef"><b>Definition:</b> <a href="a00290_source.html#l03104">basic_string.h:3104</a></div></div> <div class="ttc" id="a01538_html_a20aaa750b7ddf43635768c7b2d0385e6"><div class="ttname"><a href="a01538.html#a20aaa750b7ddf43635768c7b2d0385e6">std::operator<<</a></div><div class="ttdeci">std::basic_ostream< _CharT, _Traits > & operator<<(std::basic_ostream< _CharT, _Traits > &__os, const bitset< _Nb > &__x)</div><div class="ttdoc">Global I/O operators for bitsets.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l01534">bitset:1534</a></div></div> <div class="ttc" id="a17151_html"><div class="ttname"><a href="a17151.html">string</a></div></div> <div class="ttc" id="a07612_html"><div class="ttname"><a href="a07612.html">std::reverse_iterator</a></div><div class="ttdef"><b>Definition:</b> <a href="a17142_source.html#l00101">bits/stl_iterator.h:101</a></div></div> <div class="ttc" id="a01476_html_ga3ef38e934006ae2422e5a7f136238d22"><div class="ttname"><a href="a01476.html#ga3ef38e934006ae2422e5a7f136238d22">std::common_type_t</a></div><div class="ttdeci">typename common_type< _Tp... >::type common_type_t</div><div class="ttdoc">Alias template for common_type.</div><div class="ttdef"><b>Definition:</b> <a href="a00167_source.html#l02302">type_traits:2302</a></div></div> <div class="ttc" id="a10092_html"><div class="ttname"><a href="a10092.html">std::experimental::fundamentals_v1::basic_string_view</a></div><div class="ttdoc">A non-owning reference to a string.</div><div class="ttdef"><b>Definition:</b> <a href="a01013_source.html#l00074">string_view:74</a></div></div> <div class="ttc" id="a00095_html"><div class="ttname"><a href="a00095.html">limits</a></div></div> <div class="ttc" id="a00995_html"><div class="ttname"><a href="a00995.html">lfts_config.h</a></div></div> <div class="ttc" id="a02520_html_aae25581f91ebab83161d2da3fe0cdb9d"><div class="ttname"><a href="a02520.html#aae25581f91ebab83161d2da3fe0cdb9d">std::numeric_limits::min</a></div><div class="ttdeci">static constexpr _Tp min() noexcept</div><div class="ttdef"><b>Definition:</b> <a href="a00095_source.html#l00317">limits:317</a></div></div> <div class="ttc" id="a01538_html"><div class="ttname"><a href="a01538.html">std</a></div><div class="ttdoc">ISO C++ entities toplevel namespace is std.</div></div> <div class="ttc" id="a02520_html_a27b481b529885d1b1b714c7fe69a1945"><div class="ttname"><a href="a02520.html#a27b481b529885d1b1b714c7fe69a1945">std::numeric_limits::max</a></div><div class="ttdeci">static constexpr _Tp max() noexcept</div><div class="ttdef"><b>Definition:</b> <a href="a00095_source.html#l00321">limits:321</a></div></div> <div class="ttc" id="a01482_html_gad48656de2f272a953455e1fff2532125"><div class="ttname"><a href="a01482.html#gad48656de2f272a953455e1fff2532125">std::min</a></div><div class="ttdeci">_GLIBCXX14_CONSTEXPR const _Tp & min(const _Tp &, const _Tp &)</div><div class="ttdoc">This does what you think it does.</div><div class="ttdef"><b>Definition:</b> <a href="a00530_source.html#l00195">stl_algobase.h:195</a></div></div> <div class="ttc" id="a03040_html"><div class="ttname"><a href="a03040.html">std::integral_constant</a></div><div class="ttdoc">integral_constant</div><div class="ttdef"><b>Definition:</b> <a href="a00167_source.html#l00057">type_traits:57</a></div></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_3a83f109ff04170a1f8448445d1bdcba.html">include</a></li><li class="navelem"><a class="el" href="dir_70d4ab3a5261b72adc47eec15b413144.html">experimental</a></li><li class="navelem"><a class="el" href="a01013.html">string_view</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" 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