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<a href="a00089.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">// Input streams -*- 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) 1997-2018 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> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">//</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// ISO C++ 14882: 27.6.1 Input streams</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> <span class="comment"></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">/** @file include/istream</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * This is a Standard C++ Library header.</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_ISTREAM</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define _GLIBCXX_ISTREAM 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">#include <<a class="code" href="a00080.html">ios</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="a00116.html">ostream</a>></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span><a class="code" href="a01538.html">std</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> /**</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * @brief Template class basic_istream.</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * @ingroup io</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> *</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * @tparam _CharT Type of character stream.</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * @tparam _Traits Traits for character type, defaults to</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * char_traits<_CharT>.</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> *</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * This is the base class for all input streams. It provides text</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * formatting of all builtin types, and communicates with any class</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * derived from basic_streambuf to do the actual input.</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> */</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">class </span>basic_istream : <span class="keyword">virtual</span> <span class="keyword">public</span> basic_ios<_CharT, _Traits></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// Types (inherited from basic_ios (27.4.4)):</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">typedef</span> _CharT char_type;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::int_type int_type;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::pos_type pos_type;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::off_type off_type;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">typedef</span> _Traits traits_type;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// Non-standard Types:</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">typedef</span> basic_streambuf<_CharT, _Traits> __streambuf_type;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">typedef</span> basic_ios<_CharT, _Traits> __ios_type;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">typedef</span> basic_istream<_CharT, _Traits> __istream_type;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">typedef</span> num_get<_CharT, istreambuf_iterator<_CharT, _Traits> ></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  __num_get_type;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">typedef</span> ctype<_CharT> __ctype_type;</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">protected</span>:</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// Data Members:</span><span class="comment"></span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> /**</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * The number of characters extracted in the previous unformatted</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * function; see gcount().</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> */</span></div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="a02456.html#a561684f2822987bda56c7e8817f91892"> 82</a></span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> <a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> /**</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * @brief Base constructor.</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> *</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> * This ctor is almost never called by the user directly, rather from</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * derived classes' initialization lists, which pass a pointer to</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> * their own stream buffer.</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> */</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="a02456.html#aafe5687995bf38a165786a7ec224ee7f"> 93</a></span>  <a class="code" href="a02456.html#aafe5687995bf38a165786a7ec224ee7f">basic_istream</a>(<a class="code" href="a02452.html">__streambuf_type</a>* __sb)</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  : <a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a>(0))</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  { this-><a class="code" href="a02448.html#a62a4b454cbedd686b89e48fa9d6160c4">init</a>(__sb); }</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"></span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> /**</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * @brief Base destructor.</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> *</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> * This does very little apart from providing a virtual base dtor.</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> */</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">virtual</span></div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="a02456.html#a7556d385b49d449f67b8a0cd795977ff"> 103</a></span>  <a class="code" href="a02456.html#a7556d385b49d449f67b8a0cd795977ff">~basic_istream</a>()</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  { <a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a> = <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a>(0); }</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"></span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> /// Safe prefix/suffix operations.</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"></span> <span class="keyword">class </span>sentry;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">friend</span> <span class="keyword">class </span>sentry;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"></span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> * @brief Interface for manipulators.</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> *</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> * Manipulators such as @c std::ws and @c std::dec use these</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * functions in constructs like</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * <code>std::cin >> std::ws</code>.</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * For more information, see the iomanip header.</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> */</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  __istream_type&</div><div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="a02456.html#afbcef374ef55284de359fe5b920c20c3"> 120</a></span>  <a class="code" href="a02456.html#afbcef374ef55284de359fe5b920c20c3">operator>></a>(<a class="code" href="a02456.html">__istream_type</a>& (*__pf)(<a class="code" href="a02456.html">__istream_type</a>&))</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  { <span class="keywordflow">return</span> __pf(*<span class="keyword">this</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>  __istream_type&</div><div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="a02456.html#a84505fa4c5752e1143bb1458b3a23e6a"> 124</a></span>  <a class="code" href="a02456.html#a84505fa4c5752e1143bb1458b3a23e6a">operator>></a>(<a class="code" href="a02448.html">__ios_type</a>& (*__pf)(<a class="code" href="a02448.html">__ios_type</a>&))</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  {</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  __pf(*<span class="keyword">this</span>);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  __istream_type&</div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="a02456.html#aed375bddc8064e0d86b920c2a0dac2a0"> 131</a></span>  <a class="code" href="a02456.html#aed375bddc8064e0d86b920c2a0dac2a0">operator>></a>(<a class="code" href="a05796.html">ios_base</a>& (*__pf)(<a class="code" href="a05796.html">ios_base</a>&))</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  __pf(*<span class="keyword">this</span>);</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }<span class="comment"></span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * @name Extractors</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> *</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> * All the @c operator>> functions (aka <em>formatted input</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> * functions</em>) have some common behavior. Each starts by</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * constructing a temporary object of type std::basic_istream::sentry</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> * with the second argument (noskipws) set to false. This has several</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> * effects, concluding with the setting of a status flag; see the</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"> * sentry documentation for more.</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"> *</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"> * If the sentry status is good, the function tries to extract</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment"> * whatever data is appropriate for the type of the argument.</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> *</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> * If an exception is thrown during extraction, ios_base::badbit</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"> * will be turned on in the stream's error state (without causing an</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"> * ios_base::failure to be thrown) and the original exception will</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"> * be rethrown if badbit is set in the exceptions mask.</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment"> */</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment"></span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> * @brief Integer arithmetic extractors</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * @param __n A variable of builtin integral type.</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> * @return @c *this if successful</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> *</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> * These functions use the stream's current locale (specifically, the</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> * @c num_get facet) to parse the input data.</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> */</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  __istream_type&</div><div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="a02456.html#ae323c8017fbcd54117924b4789569b5a"> 168</a></span>  <a class="code" href="a02456.html#ae323c8017fbcd54117924b4789569b5a">operator>></a>(<span class="keywordtype">bool</span>& __n)</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</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>  __istream_type&</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="a02456.html#afbcef374ef55284de359fe5b920c20c3">operator>></a>(<span class="keywordtype">short</span>& __n);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  __istream_type&</div><div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="a02456.html#affcef40a87f4c392930dd81dfda3798f"> 175</a></span>  <a class="code" href="a02456.html#affcef40a87f4c392930dd81dfda3798f">operator>></a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>& __n)</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</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>  __istream_type&</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="a02456.html#afbcef374ef55284de359fe5b920c20c3">operator>></a>(<span class="keywordtype">int</span>& __n);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  __istream_type&</div><div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="a02456.html#aba91dd572021d240f2385b2eb0c73a07"> 182</a></span>  <a class="code" href="a02456.html#aba91dd572021d240f2385b2eb0c73a07">operator>></a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>& __n)</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</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>  __istream_type&</div><div class="line"><a name="l00186"></a><span class="lineno"><a class="line" href="a02456.html#a4a94cc0cfdd17d93c58228b5141904a6"> 186</a></span>  <a class="code" href="a02456.html#a4a94cc0cfdd17d93c58228b5141904a6">operator>></a>(<span class="keywordtype">long</span>& __n)</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  __istream_type&</div><div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="a02456.html#a6a9a2eb43ef2fe89646033454347aa19"> 190</a></span>  <a class="code" href="a02456.html#a6a9a2eb43ef2fe89646033454347aa19">operator>></a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>& __n)</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_LONG_LONG</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  __istream_type&</div><div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="a02456.html#a78af82a5a9196d27ddee3be0d99354c6"> 195</a></span>  <a class="code" href="a02456.html#a78af82a5a9196d27ddee3be0d99354c6">operator>></a>(<span class="keywordtype">long</span> <span class="keywordtype">long</span>& __n)</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</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>  __istream_type&</div><div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="a02456.html#a884f57a96ba4bda2be39e30ec516793a"> 199</a></span>  <a class="code" href="a02456.html#a884f57a96ba4bda2be39e30ec516793a">operator>></a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span>& __n)</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  { <span class="keywordflow">return</span> _M_extract(__n); }</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> * @brief Floating point arithmetic extractors</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> * @param __f A variable of builtin floating point type.</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * @return @c *this if successful</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> *</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * These functions use the stream's current locale (specifically, the</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * @c num_get facet) to parse the input data.</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> */</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  __istream_type&</div><div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="a02456.html#aadf4b5059f8e6a0d601ab5c2fb8bc150"> 214</a></span>  <a class="code" href="a02456.html#aadf4b5059f8e6a0d601ab5c2fb8bc150">operator>></a>(<span class="keywordtype">float</span>& __f)</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  { <span class="keywordflow">return</span> _M_extract(__f); }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  __istream_type&</div><div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="a02456.html#afbeb775011b09fa4f51d18dc84ffe497"> 218</a></span>  <a class="code" href="a02456.html#afbeb775011b09fa4f51d18dc84ffe497">operator>></a>(<span class="keywordtype">double</span>& __f)</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  { <span class="keywordflow">return</span> _M_extract(__f); }</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  __istream_type&</div><div class="line"><a name="l00222"></a><span class="lineno"><a class="line" href="a02456.html#a2b4d9b107c966dc9ed975ba9cc157783"> 222</a></span>  <a class="code" href="a02456.html#a2b4d9b107c966dc9ed975ba9cc157783">operator>></a>(<span class="keywordtype">long</span> <span class="keywordtype">double</span>& __f)</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  { <span class="keywordflow">return</span> _M_extract(__f); }<span class="comment"></span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> /**</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * @brief Basic arithmetic extractors</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * @param __p A variable of pointer type.</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * @return @c *this if successful</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> *</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> * These functions use the stream's current locale (specifically, the</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment"> * @c num_get facet) to parse the input data.</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment"> */</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  __istream_type&</div><div class="line"><a name="l00235"></a><span class="lineno"><a class="line" href="a02456.html#adeaf1064509afa95a3eb1b49c2d351e1"> 235</a></span>  <a class="code" href="a02456.html#adeaf1064509afa95a3eb1b49c2d351e1">operator>></a>(<span class="keywordtype">void</span>*& __p)</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  { <span class="keywordflow">return</span> _M_extract(__p); }</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"></span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"> /**</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> * @brief Extracting into another streambuf.</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> * @param __sb A pointer to a streambuf</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> *</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> * This function behaves like one of the basic arithmetic extractors,</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * in that it also constructs a sentry object and has the same error</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * handling behavior.</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> *</span></div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> * If @p __sb is NULL, the stream will set failbit in its error state.</span></div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> *</span></div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> * Characters are extracted from this stream and inserted into the</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> * @p __sb streambuf until one of the following occurs:</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> *</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> * - the input stream reaches end-of-file,</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> * - insertion into the output buffer fails (in this case, the</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> * character that would have been inserted is not extracted), or</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"> * - an exception occurs (and in this case is caught)</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> *</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> * If the function inserts no characters, failbit is set.</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment"> */</span></div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  __istream_type&</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <a class="code" href="a02456.html#afbcef374ef55284de359fe5b920c20c3">operator>></a>(__streambuf_type* __sb);<span class="comment"></span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"></span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">// [27.6.1.3] unformatted input</span><span class="comment"></span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> /**</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> * @brief Character counting</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * @return The number of characters extracted by the previous</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> * unformatted input function dispatched for this stream.</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> */</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00269"></a><span class="lineno"><a class="line" href="a02456.html#a14cc48ec617f1c1a65d8532e7807882c"> 269</a></span>  <a class="code" href="a02456.html#a14cc48ec617f1c1a65d8532e7807882c">gcount</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> <a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>; }</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment"></span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment"> * @name Unformatted Input Functions</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment"> *</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment"> * All the unformatted input functions have some common behavior.</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment"> * Each starts by constructing a temporary object of type</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"> * std::basic_istream::sentry with the second argument (noskipws)</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment"> * set to true. This has several effects, concluding with the</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment"> * setting of a status flag; see the sentry documentation for more.</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment"> *</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment"> * If the sentry status is good, the function tries to extract</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment"> * whatever data is appropriate for the type of the argument.</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment"> *</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> * The number of characters extracted is stored for later retrieval</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * by gcount().</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> *</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> * If an exception is thrown during extraction, ios_base::badbit</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> * will be turned on in the stream's error state (without causing an</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"> * ios_base::failure to be thrown) and the original exception will</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> * be rethrown if badbit is set in the exceptions mask.</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> */</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"></span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment"> /**</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> * @brief Simple extraction.</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> * @return A character, or eof().</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> *</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> * Tries to extract a character. If none are available, sets failbit</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> * and returns traits::eof().</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> */</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  int_type</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <a class="code" href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">get</a>();</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="comment"></span></div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="comment"> /**</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment"> * @brief Simple extraction.</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="comment"> * @param __c The character in which to store data.</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="comment"> *</span></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="comment"> * Tries to extract a character and store it in @a __c. If none are</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="comment"> * available, sets failbit and returns traits::eof().</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="comment"> *</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="comment"> * @note This function is not overloaded on signed char and</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="comment"> * unsigned char.</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="comment"> */</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  __istream_type&</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <a class="code" href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">get</a>(char_type& __c);</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="comment"></span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="comment"> /**</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="comment"> * @brief Simple multiple-character extraction.</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="comment"> * @param __s Pointer to an array.</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="comment"> * @param __n Maximum number of characters to store in @a __s.</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="comment"> * @param __delim A "stop" character.</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="comment"> *</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="comment"> * Characters are extracted and stored into @a __s until one of the</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="comment"> * following happens:</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="comment"> *</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="comment"> * - @c __n-1 characters are stored</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="comment"> * - the input sequence reaches EOF</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="comment"> * - the next character equals @a __delim, in which case the character</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="comment"> * is not extracted</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment"> *</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment"> * If no characters are stored, failbit is set in the stream's error</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="comment"> * state.</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment"> *</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment"> * In any case, a null character is stored into the next location in</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment"> * the array.</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"> *</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"> * @note This function is not overloaded on signed char and</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"> * unsigned char.</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> */</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  __istream_type&</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <a class="code" href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">get</a>(char_type* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, char_type __delim);</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="comment"></span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="comment"> /**</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="comment"> * @brief Simple multiple-character extraction.</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="comment"> * @param __s Pointer to an array.</span></div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"> * @param __n Maximum number of characters to store in @a s.</span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="comment"> *</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="comment"> * Returns @c get(__s,__n,widen(&apos;\\n&apos;)).</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="comment"> */</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  __istream_type&</div><div class="line"><a name="l00354"></a><span class="lineno"><a class="line" href="a02456.html#a3844f79355cdc724af9e33fcd9f141f2"> 354</a></span>  <a class="code" href="a02456.html#a3844f79355cdc724af9e33fcd9f141f2">get</a>(<a class="code" href="a02448.html#ab79c2147554ac3080647828e0bd75c17">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">get</a>(__s, __n, this-><a class="code" href="a02448.html#a8b4b27c391cfd8af35923ef8e6b918d1">widen</a>(<span class="charliteral">'\n'</span>)); }</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="comment"></span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment"> /**</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"> * @brief Extraction into another streambuf.</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment"> * @param __sb A streambuf in which to store data.</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="comment"> * @param __delim A "stop" character.</span></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment"> *</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="comment"> * Characters are extracted and inserted into @a __sb until one of the</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment"> * following happens:</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment"> *</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment"> * - the input sequence reaches EOF</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment"> * - insertion into the output buffer fails (in this case, the</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="comment"> * character that would have been inserted is not extracted)</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="comment"> * - the next character equals @a __delim (in this case, the character</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment"> * is not extracted)</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment"> * - an exception occurs (and in this case is caught)</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment"> *</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="comment"> * If no characters are stored, failbit is set in the stream's error</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="comment"> * state.</span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment"> */</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  __istream_type&</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">get</a>(__streambuf_type& __sb, char_type __delim);</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment"></span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment"> /**</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment"> * @brief Extraction into another streambuf.</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment"> * @param __sb A streambuf in which to store data.</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment"> *</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment"> * Returns @c get(__sb,widen(&apos;\\n&apos;)).</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment"> */</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  __istream_type&</div><div class="line"><a name="l00387"></a><span class="lineno"><a class="line" href="a02456.html#a5b971a9237bcd7ed0885083c0eb8ed7a"> 387</a></span>  <a class="code" href="a02456.html#a5b971a9237bcd7ed0885083c0eb8ed7a">get</a>(<a class="code" href="a02452.html">__streambuf_type</a>& __sb)</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">get</a>(__sb, this-><a class="code" href="a02448.html#a8b4b27c391cfd8af35923ef8e6b918d1">widen</a>(<span class="charliteral">'\n'</span>)); }</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="comment"></span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="comment"> /**</span></div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="comment"> * @brief String extraction.</span></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="comment"> * @param __s A character array in which to store the data.</span></div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="comment"> * @param __n Maximum number of characters to extract.</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment"> * @param __delim A "stop" character.</span></div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment"> *</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment"> * Extracts and stores characters into @a __s until one of the</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment"> * following happens. Note that these criteria are required to be</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="comment"> * tested in the order listed here, to allow an input line to exactly</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment"> * fill the @a __s array without setting failbit.</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment"> *</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="comment"> * -# the input sequence reaches end-of-file, in which case eofbit</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment"> * is set in the stream error state</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment"> * -# the next character equals @c __delim, in which case the character</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="comment"> * is extracted (and therefore counted in @c gcount()) but not stored</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="comment"> * -# @c __n-1 characters are stored, in which case failbit is set</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="comment"> * in the stream error state</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="comment"> *</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="comment"> * If no characters are extracted, failbit is set. (An empty line of</span></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment"> * input should therefore not cause failbit to be set.)</span></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="comment"> *</span></div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="comment"> * In any case, a null character is stored in the next location in</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="comment"> * the array.</span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="comment"> */</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  __istream_type&</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <a class="code" href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075">getline</a>(char_type* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, char_type __delim);</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="comment"></span></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment"> /**</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="comment"> * @brief String extraction.</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"> * @param __s A character array in which to store the data.</span></div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment"> * @param __n Maximum number of characters to extract.</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="comment"> *</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment"> * Returns @c getline(__s,__n,widen(&apos;\\n&apos;)).</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment"> */</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  __istream_type&</div><div class="line"><a name="l00427"></a><span class="lineno"><a class="line" href="a02456.html#a4b90accfeac1200f276233a58dd46c46"> 427</a></span>  <a class="code" href="a02456.html#a4b90accfeac1200f276233a58dd46c46">getline</a>(<a class="code" href="a02448.html#ab79c2147554ac3080647828e0bd75c17">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075">getline</a>(__s, __n, this-><a class="code" href="a02448.html#a8b4b27c391cfd8af35923ef8e6b918d1">widen</a>(<span class="charliteral">'\n'</span>)); }</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"></span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="comment"> /**</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="comment"> * @brief Discarding characters</span></div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="comment"> * @param __n Number of characters to discard.</span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="comment"> * @param __delim A "stop" character.</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="comment"> *</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="comment"> * Extracts characters and throws them away until one of the</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment"> * following happens:</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="comment"> * - if @a __n @c != @c std::numeric_limits<int>::max(), @a __n</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="comment"> * characters are extracted</span></div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="comment"> * - the input sequence reaches end-of-file</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="comment"> * - the next character equals @a __delim (in this case, the character</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="comment"> * is extracted); note that this condition will never occur if</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> <span class="comment"> * @a __delim equals @c traits::eof().</span></div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="comment"> *</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <span class="comment"> * NB: Provide three overloads, instead of the single function</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <span class="comment"> * (with defaults) mandated by the Standard: this leads to a</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="comment"> * better performing implementation, while still conforming to</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <span class="comment"> * the Standard.</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="comment"> */</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  __istream_type&</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">ignore</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, int_type __delim);</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>  __istream_type&</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">ignore</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  __istream_type&</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">ignore</a>();</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"></span></div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment"> /**</span></div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="comment"> * @brief Looking ahead in the stream</span></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment"> * @return The next character, or eof().</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment"> *</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="comment"> * If, after constructing the sentry object, @c good() is false,</span></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"> * returns @c traits::eof(). Otherwise reads but does not extract</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> * the next input character.</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"> */</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  int_type</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <a class="code" href="a02456.html#a2f0e75e1691608c66f634191e54ec4d9">peek</a>();</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"></span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="comment"> /**</span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="comment"> * @brief Extraction without delimiters.</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment"> * @param __s A character array.</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="comment"> * @param __n Maximum number of characters to store.</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="comment"> *</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="comment"> * If the stream state is @c good(), extracts characters and stores</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"> * them into @a __s until one of the following happens:</span></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"> * - @a __n characters are stored</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="comment"> * - the input sequence reaches end-of-file, in which case the error</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="comment"> * state is set to @c failbit|eofbit.</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="comment"> *</span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment"> * @note This function is not overloaded on signed char and</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="comment"> * unsigned char.</span></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="comment"> */</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  __istream_type&</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <a class="code" href="a02456.html#a9a4153b69895307ee9f18ebf08e0182a">read</a>(char_type* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"></span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="comment"> /**</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="comment"> * @brief Extraction until the buffer is exhausted, but no more.</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="comment"> * @param __s A character array.</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment"> * @param __n Maximum number of characters to store.</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment"> * @return The number of characters extracted.</span></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="comment"> *</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="comment"> * Extracts characters and stores them into @a __s depending on the</span></div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="comment"> * number of characters remaining in the streambuf's buffer,</span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="comment"> * @c rdbuf()->in_avail(), called @c A here:</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="comment"> * - if @c A @c == @c -1, sets eofbit and extracts no characters</span></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="comment"> * - if @c A @c == @c 0, extracts no characters</span></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="comment"> * - if @c A @c > @c 0, extracts @c min(A,n)</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="comment"> *</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="comment"> * The goal is to empty the current buffer, and to not request any</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="comment"> * more from the external input sequence controlled by the streambuf.</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="comment"> */</span></div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <a class="code" href="a02456.html#a1fab30041eadb65949ee4644e4db565d">readsome</a>(char_type* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"></span></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"> /**</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment"> * @brief Unextracting a single character.</span></div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment"> * @param __c The character to push back into the input stream.</span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="comment"> *</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="comment"> * If @c rdbuf() is not null, calls @c rdbuf()->sputbackc(c).</span></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="comment"> *</span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="comment"> * If @c rdbuf() is null or if @c sputbackc() fails, sets badbit in</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="comment"> * the error state.</span></div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="comment"> *</span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="comment"> * @note This function first clears eofbit. Since no characters</span></div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="comment"> * are extracted, the next call to @c gcount() will return 0,</span></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="comment"> * as required by DR 60.</span></div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="comment"> */</span></div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  __istream_type&</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <a class="code" href="a02456.html#aaac4e520f0841cce4c36bd614fa6043e">putback</a>(char_type __c);</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="comment"></span></div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="comment"> /**</span></div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="comment"> * @brief Unextracting the previous character.</span></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="comment"> *</span></div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="comment"> * If @c rdbuf() is not null, calls @c rdbuf()->sungetc(c).</span></div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="comment"> *</span></div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="comment"> * If @c rdbuf() is null or if @c sungetc() fails, sets badbit in</span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="comment"> * the error state.</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="comment"> *</span></div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="comment"> * @note This function first clears eofbit. Since no characters</span></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="comment"> * are extracted, the next call to @c gcount() will return 0,</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="comment"> * as required by DR 60.</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="comment"> */</span></div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  __istream_type&</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="a02456.html#a43227bf6cbcb63ecd9e34a82822ffb75">unget</a>();</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="comment"></span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="comment"> /**</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="comment"> * @brief Synchronizing the stream buffer.</span></div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="comment"> * @return 0 on success, -1 on failure</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="comment"> *</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment"> * If @c rdbuf() is a null pointer, returns -1.</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"> *</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment"> * Otherwise, calls @c rdbuf()->pubsync(), and if that returns -1,</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> * sets badbit and returns -1.</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="comment"> *</span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="comment"> * Otherwise, returns 0.</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> *</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"> * @note This function does not count the number of characters</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="comment"> * extracted, if any, and therefore does not affect the next</span></div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="comment"> * call to @c gcount().</span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="comment"> */</span></div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordtype">int</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <a class="code" href="a02456.html#af3f3c68797d19724d8add89b15a08908">sync</a>();</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"></span></div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="comment"> /**</span></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="comment"> * @brief Getting the current read position.</span></div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="comment"> * @return A file position object.</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="comment"> *</span></div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="comment"> * If @c fail() is not false, returns @c pos_type(-1) to indicate</span></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="comment"> * failure. Otherwise returns @c rdbuf()->pubseekoff(0,cur,in).</span></div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="comment"> *</span></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> * @note This function does not count the number of characters</span></div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="comment"> * extracted, if any, and therefore does not affect the next</span></div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="comment"> * call to @c gcount(). At variance with putback, unget and</span></div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="comment"> * seekg, eofbit is not cleared first.</span></div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="comment"> */</span></div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  pos_type</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <a class="code" href="a02456.html#a46cc2065d192a9689f39d298a9573341">tellg</a>();</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"></span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="comment"> /**</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment"> * @brief Changing the current read position.</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> * @param __pos A file position object.</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"> *</span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="comment"> * If @c fail() is not true, calls @c rdbuf()->pubseekpos(__pos). If</span></div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="comment"> * that function fails, sets failbit.</span></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment"> *</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> * @note This function first clears eofbit. It does not count the</span></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="comment"> * number of characters extracted, if any, and therefore does</span></div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="comment"> * not affect the next call to @c gcount().</span></div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="comment"> */</span></div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  __istream_type&</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <a class="code" href="a02456.html#a06aeddb9416bfb47fe49ef00c8980eed">seekg</a>(pos_type);</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="comment"></span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="comment"> /**</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="comment"> * @brief Changing the current read position.</span></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="comment"> * @param __off A file offset object.</span></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="comment"> * @param __dir The direction in which to seek.</span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="comment"> * @return *this</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment"> *</span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"> * If @c fail() is not true, calls @c rdbuf()->pubseekoff(__off,__dir).</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment"> * If that function fails, sets failbit.</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="comment"> *</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="comment"> * @note This function first clears eofbit. It does not count the</span></div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="comment"> * number of characters extracted, if any, and therefore does</span></div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="comment"> * not affect the next call to @c gcount().</span></div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="comment"> */</span></div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  __istream_type&</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <a class="code" href="a02456.html#a06aeddb9416bfb47fe49ef00c8980eed">seekg</a>(off_type, ios_base::seekdir);<span class="comment"></span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment"></span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <a class="code" href="a02456.html">basic_istream</a>()</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  : <a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a>(0))</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  { this-><a class="code" href="a02448.html#a62a4b454cbedd686b89e48fa9d6160c4">init</a>(0); }</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">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  basic_istream(<span class="keyword">const</span> basic_istream&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  basic_istream(basic_istream&& __rhs)</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  : __ios_type(), <a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>(__rhs.<a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>)</div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  {</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  __ios_type::move(__rhs);</div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  __rhs._M_gcount = 0;</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  }</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> </div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="comment">// 27.7.3.3 Assign/swap</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span> </div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <a class="code" href="a02456.html#aafe5687995bf38a165786a7ec224ee7f">basic_istream</a>& operator=(<span class="keyword">const</span> basic_istream&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span> </div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <a class="code" href="a02456.html#aafe5687995bf38a165786a7ec224ee7f">basic_istream</a>&</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  operator=(basic_istream&& __rhs)</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  {</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  swap(__rhs);</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  }</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> </div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  swap(basic_istream& __rhs)</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>  __ios_type::swap(__rhs);</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  std::swap(<a class="code" href="a02456.html#a561684f2822987bda56c7e8817f91892">_M_gcount</a>, __rhs._M_gcount);</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  }</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span> </div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _ValueT></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  __istream_type&</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  _M_extract(_ValueT& __v);</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  };</div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="comment"></span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment"> /// Explicit specialization declarations, defined in src/istream.cc.</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment"></span> <span class="keyword">template</span><></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  basic_istream<char>&</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <a class="code" href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075">basic_istream<char>::</a></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <a class="code" href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075"> getline</a>(char_type* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, char_type __delim);</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  basic_istream<char>&</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">basic_istream<char>::</a></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span> <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f"> ignore</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span> </div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  basic_istream<char>&</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">basic_istream<char>::</a></div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f"> ignore</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, int_type __delim);</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> </div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  basic_istream<wchar_t>&</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <a class="code" href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075">basic_istream<wchar_t>::</a></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <a class="code" href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075"> getline</a>(char_type* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, char_type __delim);</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> </div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  basic_istream<wchar_t>&</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">basic_istream<wchar_t>::</a></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f"> ignore</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> </div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  basic_istream<wchar_t>&</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">basic_istream<wchar_t>::</a></div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <a class="code" href="a02456.html#a64f338d738e8de460fa4a2be744cff8f"> ignore</a>(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n, int_type __delim);</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="comment"></span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="comment"> /**</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="comment"> * @brief Performs setup work for input streams.</span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="comment"> *</span></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="comment"> * Objects of this class are created before all of the standard</span></div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="comment"> * extractors are run. It is responsible for <em>exception-safe</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="comment"> * prefix and suffix operations,</em> although only prefix actions</span></div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="comment"> * are currently required by the standard.</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="comment"> */</span></div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00686"></a><span class="lineno"><a class="line" href="a02492.html"> 686</a></span>  <span class="keyword">class </span><a class="code" href="a02456.html">basic_istream</a><_CharT, _Traits>::<a class="code" href="a02492.html">sentry</a></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  {</div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="comment">// Data Members.</span></div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="keywordtype">bool</span> _M_ok;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> </div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="comment"> /// Easy access to dependent types.</span></div><div class="line"><a name="l00693"></a><span class="lineno"><a class="line" href="a02492.html#a6b50f58dfa1c21836890bd40ec2a3300"> 693</a></span> <span class="comment"></span> <span class="keyword">typedef</span> _Traits <a class="code" href="a02492.html#a6b50f58dfa1c21836890bd40ec2a3300">traits_type</a>;</div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <span class="keyword">typedef</span> <a class="code" href="a02452.html">basic_streambuf<_CharT, _Traits></a> <a class="code" href="a02452.html">__streambuf_type</a>;</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keyword">typedef</span> <a class="code" href="a02456.html">basic_istream<_CharT, _Traits></a> <a class="code" href="a02456.html">__istream_type</a>;</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="a05856.html">__istream_type::__ctype_type</a> <a class="code" href="a05856.html">__ctype_type</a>;</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::int_type __int_type;</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="comment"></span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="comment"> /**</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="comment"> * @brief The constructor performs all the work.</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span> <span class="comment"> * @param __is The input stream to guard.</span></div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span> <span class="comment"> * @param __noskipws Whether to consume whitespace or not.</span></div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span> <span class="comment"> *</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span> <span class="comment"> * If the stream state is good (@a __is.good() is true), then the</span></div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span> <span class="comment"> * following actions are performed, otherwise the sentry state</span></div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span> <span class="comment"> * is false (<em>not okay</em>) and failbit is set in the</span></div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span> <span class="comment"> * stream state.</span></div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span> <span class="comment"> *</span></div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span> <span class="comment"> * The sentry's preparatory actions are:</span></div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span> <span class="comment"> *</span></div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="comment"> * -# if the stream is tied to an output stream, @c is.tie()->flush()</span></div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="comment"> * is called to synchronize the output sequence</span></div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="comment"> * -# if @a __noskipws is false, and @c ios_base::skipws is set in</span></div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span> <span class="comment"> * @c is.flags(), the sentry extracts and discards whitespace</span></div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="comment"> * characters from the stream. The currently imbued locale is</span></div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span> <span class="comment"> * used to determine whether each character is whitespace.</span></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="comment"> *</span></div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="comment"> * If the stream state is still good, then the sentry state becomes</span></div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> <span class="comment"> * true (@a okay).</span></div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="comment"> */</span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <a class="code" href="a02492.html">sentry</a>(<a class="code" href="a02456.html">basic_istream<_CharT, _Traits></a>& __is, <span class="keywordtype">bool</span> __noskipws = <span class="keyword">false</span>);</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="comment"></span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span> <span class="comment"> /**</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span> <span class="comment"> * @brief Quick status checking.</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span> <span class="comment"> * @return The sentry state.</span></div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> <span class="comment"> *</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span> <span class="comment"> * For ease of use, sentries may be converted to booleans. The</span></div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="comment"> * return value is that of the sentry state (true == okay).</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span> <span class="comment"> */</span></div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00734"></a><span class="lineno"><a class="line" href="a02492.html#a9fa4ff4cc39750195997c8d7e5e800c6"> 734</a></span>  <span class="keyword">operator</span> bool()<span class="keyword"> const</span></div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_ok; }</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  };</div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span> <span class="comment"></span></div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span> <span class="comment"> * @brief Character extractors</span></div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span> <span class="comment"> * @param __in An input stream.</span></div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span> <span class="comment"> * @param __c A character reference.</span></div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span> <span class="comment"> * @return in</span></div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span> <span class="comment"> *</span></div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span> <span class="comment"> * Behaves like one of the formatted arithmetic extractors described in</span></div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="comment"> * std::basic_istream. After constructing a sentry object with good</span></div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span> <span class="comment"> * status, this function extracts a character (if one is available) and</span></div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span> <span class="comment"> * stores it in @a __c. Otherwise, sets failbit in the input stream.</span></div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span> <span class="comment"> */</span></div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <a class="code" href="a02456.html">basic_istream<_CharT, _Traits></a>&</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<_CharT, _Traits></a>& __in, _CharT& __c);</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> </div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Traits></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="keyword">inline</span> <a class="code" href="a02456.html">basic_istream<char, _Traits></a>&</div><div class="line"><a name="l00756"></a><span class="lineno"><a class="line" href="a01538.html#ad29bf992665f01e4a3623420b87f40d3"> 756</a></span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<char, _Traits></a>& __in, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>& __c)</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  { <span class="keywordflow">return</span> (__in >> reinterpret_cast<char&>(__c)); }</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span> </div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Traits></div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keyword">inline</span> basic_istream<char, _Traits>&</div><div class="line"><a name="l00761"></a><span class="lineno"><a class="line" href="a01538.html#a257b6c1fab9276d9a9ca63c29279d48c"> 761</a></span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<char, _Traits></a>& __in, <span class="keywordtype">signed</span> <span class="keywordtype">char</span>& __c)</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  { <span class="keywordflow">return</span> (__in >> reinterpret_cast<char&>(__c)); }<span class="comment"></span></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span> <span class="comment"> * @brief Character string extractors</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span> <span class="comment"> * @param __in An input stream.</span></div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span> <span class="comment"> * @param __s A pointer to a character array.</span></div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span> <span class="comment"> * @return __in</span></div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="comment"> *</span></div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span> <span class="comment"> * Behaves like one of the formatted arithmetic extractors described in</span></div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span> <span class="comment"> * std::basic_istream. After constructing a sentry object with good</span></div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span> <span class="comment"> * status, this function extracts up to @c n characters and stores them</span></div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span> <span class="comment"> * into the array starting at @a __s. @c n is defined as:</span></div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span> <span class="comment"> *</span></div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="comment"> * - if @c width() is greater than zero, @c n is width() otherwise</span></div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span> <span class="comment"> * - @c n is <em>the number of elements of the largest array of *</span></div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span> <span class="comment"> * - @c char_type that can store a terminating @c eos.</em></span></div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span> <span class="comment"> * - [27.6.1.2.3]/6</span></div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="comment"> *</span></div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span> <span class="comment"> * Characters are extracted and stored until one of the following happens:</span></div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span> <span class="comment"> * - @c n-1 characters are stored</span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="comment"> * - EOF is reached</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="comment"> * - the next character is whitespace according to the current locale</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="comment"> * - the next character is a null byte (i.e., @c charT() )</span></div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="comment"> *</span></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="comment"> * @c width(0) is then called for the input stream.</span></div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span> <span class="comment"> *</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="comment"> * If no characters are extracted, sets failbit.</span></div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span> <span class="comment"> */</span></div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  basic_istream<_CharT, _Traits>&</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(basic_istream<_CharT, _Traits>& __in, _CharT* __s);</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span> </div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="comment">// Explicit specialization declaration, defined in src/istream.cc.</span></div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  basic_istream<char>&</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(basic_istream<char>& __in, <span class="keywordtype">char</span>* __s);</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span> </div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Traits></div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="keyword">inline</span> basic_istream<char, _Traits>&</div><div class="line"><a name="l00803"></a><span class="lineno"><a class="line" href="a01538.html#aefcf45965f6bebc6083ba4d0207cca1d"> 803</a></span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<char, _Traits></a>& __in, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* __s)</div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  { <span class="keywordflow">return</span> (__in >> reinterpret_cast<char*>(__s)); }</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span> </div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keyword">template</span><<span class="keyword">class</span> _Traits></div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <span class="keyword">inline</span> basic_istream<char, _Traits>&</div><div class="line"><a name="l00808"></a><span class="lineno"><a class="line" href="a01538.html#abcee0d0bbe61b8a00e0336411d295f79"> 808</a></span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<char, _Traits></a>& __in, <span class="keywordtype">signed</span> <span class="keywordtype">char</span>* __s)</div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  { <span class="keywordflow">return</span> (__in >> reinterpret_cast<char*>(__s)); }<span class="comment"></span></div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span> <span class="comment"> /**</span></div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span> <span class="comment"> * @brief Template class basic_iostream</span></div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="comment"> * @ingroup io</span></div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span> <span class="comment"> *</span></div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="comment"> * @tparam _CharT Type of character stream.</span></div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span> <span class="comment"> * @tparam _Traits Traits for character type, defaults to</span></div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span> <span class="comment"> * char_traits<_CharT>.</span></div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="comment"> *</span></div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span> <span class="comment"> * This class multiply inherits from the input and output stream classes</span></div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span> <span class="comment"> * simply to provide a single interface.</span></div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span> <span class="comment"> */</span></div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keyword">class </span>basic_iostream</div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  : <span class="keyword">public</span> basic_istream<_CharT, _Traits>,</div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="keyword">public</span> basic_ostream<_CharT, _Traits></div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  {</div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  <span class="comment">// _GLIBCXX_RESOLVE_LIB_DEFECTS</span></div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  <span class="comment">// 271. basic_iostream missing typedefs</span></div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="comment">// Types (inherited):</span></div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keyword">typedef</span> _CharT char_type;</div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::int_type int_type;</div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::pos_type pos_type;</div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::off_type off_type;</div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="keyword">typedef</span> _Traits traits_type;</div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span> </div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <span class="comment">// Non-standard Types:</span></div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="keyword">typedef</span> basic_istream<_CharT, _Traits> __istream_type;</div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="keyword">typedef</span> basic_ostream<_CharT, _Traits> __ostream_type;</div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span> <span class="comment"></span></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span> <span class="comment"> /**</span></div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span> <span class="comment"> * @brief Constructor does nothing.</span></div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span> <span class="comment"> *</span></div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span> <span class="comment"> * Both of the parent classes are initialized with the same</span></div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span> <span class="comment"> * streambuf pointer passed to this constructor.</span></div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span> <span class="comment"> */</span></div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00849"></a><span class="lineno"><a class="line" href="a02464.html#ab1cea733f7a42667a83144a06857450b"> 849</a></span>  <a class="code" href="a02464.html#ab1cea733f7a42667a83144a06857450b">basic_iostream</a>(<a class="code" href="a02452.html">basic_streambuf<_CharT, _Traits></a>* __sb)</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  : <a class="code" href="a02456.html">__istream_type</a>(__sb), <a class="code" href="a02460.html">__ostream_type</a>(__sb) { }</div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span> <span class="comment"></span></div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span> <span class="comment"> /**</span></div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span> <span class="comment"> * @brief Destructor does nothing.</span></div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span> <span class="comment"> */</span></div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <span class="keyword">virtual</span></div><div class="line"><a name="l00856"></a><span class="lineno"><a class="line" href="a02464.html#ae6395051f05575ecd1f386e0eb46fff7"> 856</a></span>  <a class="code" href="a02464.html#ae6395051f05575ecd1f386e0eb46fff7">~basic_iostream</a>() { }</div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span> </div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <a class="code" href="a02464.html">basic_iostream</a>()</div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  : __istream_type(), __ostream_type() { }</div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span> </div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  basic_iostream(<span class="keyword">const</span> basic_iostream&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span> </div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  basic_iostream(basic_iostream&& __rhs)</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  : __istream_type(<a class="code" href="a01538.html">std</a>::move(__rhs)), __ostream_type(*this)</div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  { }</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span> </div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="comment">// 27.7.3.3 Assign/swap</span></div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span> </div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  <a class="code" href="a02464.html#ab1cea733f7a42667a83144a06857450b">basic_iostream</a>& operator=(<span class="keyword">const</span> basic_iostream&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span> </div><div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <a class="code" href="a02464.html#ab1cea733f7a42667a83144a06857450b">basic_iostream</a>&</div><div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  operator=(basic_iostream&& __rhs)</div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  {</div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  swap(__rhs);</div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  }</div><div class="line"><a name="l00879"></a><span class="lineno"> 879</span> </div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  swap(basic_iostream& __rhs)</div><div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  { __istream_type::swap(__rhs); }</div><div class="line"><a name="l00883"></a><span class="lineno"> 883</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  };</div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span> <span class="comment"></span></div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span> <span class="comment"> /**</span></div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span> <span class="comment"> * @brief Quick and easy way to eat whitespace</span></div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span> <span class="comment"> *</span></div><div class="line"><a name="l00889"></a><span class="lineno"> 889</span> <span class="comment"> * This manipulator extracts whitespace characters, stopping when the</span></div><div class="line"><a name="l00890"></a><span class="lineno"> 890</span> <span class="comment"> * next character is non-whitespace, or when the input sequence is empty.</span></div><div class="line"><a name="l00891"></a><span class="lineno"> 891</span> <span class="comment"> * If the sequence is empty, @c eofbit is set in the stream, but not</span></div><div class="line"><a name="l00892"></a><span class="lineno"> 892</span> <span class="comment"> * @c failbit.</span></div><div class="line"><a name="l00893"></a><span class="lineno"> 893</span> <span class="comment"> *</span></div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span> <span class="comment"> * The current locale is used to distinguish whitespace characters.</span></div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span> <span class="comment"> *</span></div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span> <span class="comment"> * Example:</span></div><div class="line"><a name="l00897"></a><span class="lineno"> 897</span> <span class="comment"> * @code</span></div><div class="line"><a name="l00898"></a><span class="lineno"> 898</span> <span class="comment"> * MyClass mc;</span></div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span> <span class="comment"> *</span></div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span> <span class="comment"> * std::cin >> std::ws >> mc;</span></div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span> <span class="comment"> * @endcode</span></div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span> <span class="comment"> * will skip leading whitespace before calling operator>> on cin and your</span></div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span> <span class="comment"> * object. Note that the same effect can be achieved by creating a</span></div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span> <span class="comment"> * std::basic_istream::sentry inside your definition of operator>>.</span></div><div class="line"><a name="l00905"></a><span class="lineno"> 905</span> <span class="comment"> */</span></div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  basic_istream<_CharT, _Traits>&</div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  <a class="code" href="a01538.html#ad864c3d25c6f09088c3a6e8d22151a5d">ws</a>(basic_istream<_CharT, _Traits>& __is);</div><div class="line"><a name="l00909"></a><span class="lineno"> 909</span> </div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Ch, <span class="keyword">typename</span> _Up></div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  basic_istream<_Ch, _Up>&</div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  __is_convertible_to_basic_istream_test(basic_istream<_Ch, _Up>*);</div><div class="line"><a name="l00914"></a><span class="lineno"> 914</span> </div><div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp, <span class="keyword">typename</span> = <span class="keywordtype">void</span>></div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  <span class="keyword">struct </span>__is_convertible_to_basic_istream_impl</div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  {</div><div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="keyword">using</span> __istream_type = void;</div><div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  };</div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span> </div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  <span class="keyword">using</span> __do_is_convertible_to_basic_istream_impl =</div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  decltype(__is_convertible_to_basic_istream_test</div><div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  (declval<<span class="keyword">typename</span> remove_reference<_Tp>::type*>()));</div><div class="line"><a name="l00925"></a><span class="lineno"> 925</span> </div><div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="keyword">struct </span>__is_convertible_to_basic_istream_impl</div><div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  <_Tp,</div><div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  __void_t<__do_is_convertible_to_basic_istream_impl<_Tp>>></div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  {</div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="keyword">using</span> __istream_type =</div><div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  __do_is_convertible_to_basic_istream_impl<_Tp>;</div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  };</div><div class="line"><a name="l00934"></a><span class="lineno"> 934</span> </div><div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  <span class="keyword">struct </span>__is_convertible_to_basic_istream</div><div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  : __is_convertible_to_basic_istream_impl<_Tp></div><div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  {</div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="keyword">using</span> type = __not_<is_void<</div><div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="keyword">typename</span> __is_convertible_to_basic_istream_impl<_Tp>::__istream_type>>;</div><div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  constexpr <span class="keyword">static</span> <span class="keywordtype">bool</span> value = type::value;</div><div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  };</div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span> </div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Istream, <span class="keyword">typename</span> _Tp, <span class="keyword">typename</span> = <span class="keywordtype">void</span>></div><div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  <span class="keyword">struct </span>__is_extractable : <a class="code" href="a01476.html#gaebe6729ab5488ecc76c762873d226857">false_type</a> {};</div><div class="line"><a name="l00947"></a><span class="lineno"> 947</span> </div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Istream, <span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  <span class="keyword">struct </span>__is_extractable<_Istream, _Tp,</div><div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  __void_t<decltype(declval<_Istream&>()</div><div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  >> declval<_Tp>())>></div><div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  : <a class="code" href="a01476.html#ga6a860513044e23d34e553ea986e83fa1">true_type</a> {};</div><div class="line"><a name="l00953"></a><span class="lineno"> 953</span> </div><div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Istream></div><div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  <span class="keyword">using</span> __rvalue_istream_type =</div><div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <span class="keyword">typename</span> __is_convertible_to_basic_istream<</div><div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  _Istream>::__istream_type;</div><div class="line"><a name="l00958"></a><span class="lineno"> 958</span> </div><div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  <span class="comment">// [27.7.1.6] Rvalue stream extraction</span></div><div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="comment">// _GLIBCXX_RESOLVE_LIB_DEFECTS</span></div><div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  <span class="comment">// 2328. Rvalue stream extraction should use perfect forwarding</span><span class="comment"></span></div><div class="line"><a name="l00962"></a><span class="lineno"> 962</span> <span class="comment"> /**</span></div><div class="line"><a name="l00963"></a><span class="lineno"> 963</span> <span class="comment"> * @brief Generic extractor for rvalue stream</span></div><div class="line"><a name="l00964"></a><span class="lineno"> 964</span> <span class="comment"> * @param __is An input stream.</span></div><div class="line"><a name="l00965"></a><span class="lineno"> 965</span> <span class="comment"> * @param __x A reference to the extraction target.</span></div><div class="line"><a name="l00966"></a><span class="lineno"> 966</span> <span class="comment"> * @return is</span></div><div class="line"><a name="l00967"></a><span class="lineno"> 967</span> <span class="comment"> *</span></div><div class="line"><a name="l00968"></a><span class="lineno"> 968</span> <span class="comment"> * This is just a forwarding function to allow extraction from</span></div><div class="line"><a name="l00969"></a><span class="lineno"> 969</span> <span class="comment"> * rvalue streams since they won't bind to the extractor functions</span></div><div class="line"><a name="l00970"></a><span class="lineno"> 970</span> <span class="comment"> * that take an lvalue reference.</span></div><div class="line"><a name="l00971"></a><span class="lineno"> 971</span> <span class="comment"> */</span></div><div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Istream, <span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  <span class="keyword">inline</span></div><div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <span class="keyword">typename</span> enable_if<__and_<__not_<is_lvalue_reference<_Istream>>,</div><div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  __is_convertible_to_basic_istream<_Istream>,</div><div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  __is_extractable<</div><div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  __rvalue_istream_type<_Istream>,</div><div class="line"><a name="l00978"></a><span class="lineno"> 978</span>  _Tp&&>>::value,</div><div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  __rvalue_istream_type<_Istream>>::type</div><div class="line"><a name="l00980"></a><span class="lineno"><a class="line" href="a01538.html#acda683e8b3ae5f1dd425bb99774304a7"> 980</a></span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(_Istream&& __is, _Tp&& __x)</div><div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  {</div><div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  __rvalue_istream_type<_Istream> __ret_is = __is;</div><div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  __ret_is >> std::forward<_Tp>(__x);</div><div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  <span class="keywordflow">return</span> __ret_is;</div><div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  }</div><div class="line"><a name="l00986"></a><span class="lineno"> 986</span> <span class="preprocessor">#endif // C++11</span></div><div class="line"><a name="l00987"></a><span class="lineno"> 987</span> </div><div class="line"><a name="l00988"></a><span class="lineno"> 988</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00989"></a><span class="lineno"> 989</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00990"></a><span class="lineno"> 990</span> </div><div class="line"><a name="l00991"></a><span class="lineno"> 991</span> <span class="preprocessor">#include <<a class="code" href="a00386.html">bits/istream.tcc</a>></span></div><div class="line"><a name="l00992"></a><span class="lineno"> 992</span> </div><div class="line"><a name="l00993"></a><span class="lineno"> 993</span> <span class="preprocessor">#endif </span><span class="comment">/* _GLIBCXX_ISTREAM */</span><span class="preprocessor"></span></div><div class="ttc" id="a02456_html_a1fab30041eadb65949ee4644e4db565d"><div class="ttname"><a href="a02456.html#a1fab30041eadb65949ee4644e4db565d">std::basic_istream::readsome</a></div><div class="ttdeci">streamsize readsome(char_type *__s, streamsize __n)</div><div class="ttdoc">Extraction until the buffer is exhausted, but no more.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00687">istream.tcc:687</a></div></div>
<div class="ttc" id="a02492_html"><div class="ttname"><a href="a02492.html">std::basic_istream::sentry</a></div><div class="ttdoc">Performs setup work for input streams.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00686">istream:686</a></div></div>
<div class="ttc" id="a02456_html_aba91dd572021d240f2385b2eb0c73a07"><div class="ttname"><a href="a02456.html#aba91dd572021d240f2385b2eb0c73a07">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(unsigned int &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00182">istream:182</a></div></div>
<div class="ttc" id="a05796_html"><div class="ttname"><a href="a05796.html">std::ios_base</a></div><div class="ttdoc">The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00228">ios_base.h:228</a></div></div>
<div class="ttc" id="a02448_html"><div class="ttname"><a href="a02448.html">std::basic_ios< char, _Traits ></a></div></div>
<div class="ttc" id="a02456_html_a9a4153b69895307ee9f18ebf08e0182a"><div class="ttname"><a href="a02456.html#a9a4153b69895307ee9f18ebf08e0182a">std::basic_istream::read</a></div><div class="ttdeci">__istream_type & read(char_type *__s, streamsize __n)</div><div class="ttdoc">Extraction without delimiters.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00658">istream.tcc:658</a></div></div>
<div class="ttc" id="a01476_html_gaebe6729ab5488ecc76c762873d226857"><div class="ttname"><a href="a01476.html#gaebe6729ab5488ecc76c762873d226857">std::false_type</a></div><div class="ttdeci">integral_constant< bool, false > false_type</div><div class="ttdoc">The type used as a compile-time boolean with false value.</div><div class="ttdef"><b>Definition:</b> <a href="a00167_source.html#l00078">type_traits:78</a></div></div>
<div class="ttc" id="a02456_html_aadf4b5059f8e6a0d601ab5c2fb8bc150"><div class="ttname"><a href="a02456.html#aadf4b5059f8e6a0d601ab5c2fb8bc150">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(float &__f)</div><div class="ttdoc">Floating point arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00214">istream:214</a></div></div>
<div class="ttc" id="a02456_html"><div class="ttname"><a href="a02456.html">std::basic_istream< char, _Traits ></a></div></div>
<div class="ttc" id="a02492_html_a6b50f58dfa1c21836890bd40ec2a3300"><div class="ttname"><a href="a02492.html#a6b50f58dfa1c21836890bd40ec2a3300">std::basic_istream::sentry::traits_type</a></div><div class="ttdeci">_Traits traits_type</div><div class="ttdoc">Easy access to dependent types.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00693">istream:693</a></div></div>
<div class="ttc" id="a02456_html_a884f57a96ba4bda2be39e30ec516793a"><div class="ttname"><a href="a02456.html#a884f57a96ba4bda2be39e30ec516793a">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(unsigned long long &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00199">istream:199</a></div></div>
<div class="ttc" id="a02456_html_a14cc48ec617f1c1a65d8532e7807882c"><div class="ttname"><a href="a02456.html#a14cc48ec617f1c1a65d8532e7807882c">std::basic_istream::gcount</a></div><div class="ttdeci">streamsize gcount() const</div><div class="ttdoc">Character counting.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00269">istream:269</a></div></div>
<div class="ttc" id="a02456_html_aed375bddc8064e0d86b920c2a0dac2a0"><div class="ttname"><a href="a02456.html#aed375bddc8064e0d86b920c2a0dac2a0">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(ios_base &(*__pf)(ios_base &))</div><div class="ttdoc">Interface for manipulators.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00131">istream:131</a></div></div>
<div class="ttc" id="a02464_html"><div class="ttname"><a href="a02464.html">std::basic_iostream</a></div><div class="ttdoc">Template class basic_iostream.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00089">iosfwd:89</a></div></div>
<div class="ttc" id="a02456_html_a6a9a2eb43ef2fe89646033454347aa19"><div class="ttname"><a href="a02456.html#a6a9a2eb43ef2fe89646033454347aa19">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(unsigned long &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00190">istream:190</a></div></div>
<div class="ttc" id="a02456_html_a46cc2065d192a9689f39d298a9573341"><div class="ttname"><a href="a02456.html#a46cc2065d192a9689f39d298a9573341">std::basic_istream::tellg</a></div><div class="ttdeci">pos_type tellg()</div><div class="ttdoc">Getting the current read position.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00825">istream.tcc:825</a></div></div>
<div class="ttc" id="a02456_html_adeaf1064509afa95a3eb1b49c2d351e1"><div class="ttname"><a href="a02456.html#adeaf1064509afa95a3eb1b49c2d351e1">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(void *&__p)</div><div class="ttdoc">Basic arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00235">istream:235</a></div></div>
<div class="ttc" id="a02456_html_a2b4d9b107c966dc9ed975ba9cc157783"><div class="ttname"><a href="a02456.html#a2b4d9b107c966dc9ed975ba9cc157783">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(long double &__f)</div><div class="ttdoc">Floating point arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00222">istream:222</a></div></div>
<div class="ttc" id="a02456_html_a4b90accfeac1200f276233a58dd46c46"><div class="ttname"><a href="a02456.html#a4b90accfeac1200f276233a58dd46c46">std::basic_istream::getline</a></div><div class="ttdeci">__istream_type & getline(char_type *__s, streamsize __n)</div><div class="ttdoc">String extraction.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00427">istream:427</a></div></div>
<div class="ttc" id="a02464_html_ae6395051f05575ecd1f386e0eb46fff7"><div class="ttname"><a href="a02464.html#ae6395051f05575ecd1f386e0eb46fff7">std::basic_iostream::~basic_iostream</a></div><div class="ttdeci">virtual ~basic_iostream()</div><div class="ttdoc">Destructor does nothing.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00856">istream:856</a></div></div>
<div class="ttc" id="a01538_html_ad864c3d25c6f09088c3a6e8d22151a5d"><div class="ttname"><a href="a01538.html#ad864c3d25c6f09088c3a6e8d22151a5d">std::ws</a></div><div class="ttdeci">basic_istream< _CharT, _Traits > & ws(basic_istream< _CharT, _Traits > &__is)</div><div class="ttdoc">Quick and easy way to eat whitespace.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l01024">istream.tcc:1024</a></div></div>
<div class="ttc" id="a02456_html_afbeb775011b09fa4f51d18dc84ffe497"><div class="ttname"><a href="a02456.html#afbeb775011b09fa4f51d18dc84ffe497">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(double &__f)</div><div class="ttdoc">Floating point arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00218">istream:218</a></div></div>
<div class="ttc" id="a02456_html_ae323c8017fbcd54117924b4789569b5a"><div class="ttname"><a href="a02456.html#ae323c8017fbcd54117924b4789569b5a">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(bool &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00168">istream:168</a></div></div>
<div class="ttc" id="a02456_html_aaac4e520f0841cce4c36bd614fa6043e"><div class="ttname"><a href="a02456.html#aaac4e520f0841cce4c36bd614fa6043e">std::basic_istream::putback</a></div><div class="ttdeci">__istream_type & putback(char_type __c)</div><div class="ttdoc">Unextracting a single character.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00719">istream.tcc:719</a></div></div>
<div class="ttc" id="a02456_html_a78af82a5a9196d27ddee3be0d99354c6"><div class="ttname"><a href="a02456.html#a78af82a5a9196d27ddee3be0d99354c6">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(long long &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00195">istream:195</a></div></div>
<div class="ttc" id="a02456_html_aafe5687995bf38a165786a7ec224ee7f"><div class="ttname"><a href="a02456.html#aafe5687995bf38a165786a7ec224ee7f">std::basic_istream::basic_istream</a></div><div class="ttdeci">basic_istream(__streambuf_type *__sb)</div><div class="ttdoc">Base constructor.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00093">istream:93</a></div></div>
<div class="ttc" id="a02456_html_ad2ddee6cd20ebffc86db5ae8c4953075"><div class="ttname"><a href="a02456.html#ad2ddee6cd20ebffc86db5ae8c4953075">std::basic_istream::getline</a></div><div class="ttdeci">__istream_type & getline(char_type *__s, streamsize __n, char_type __delim)</div><div class="ttdoc">String extraction.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00408">istream.tcc:408</a></div></div>
<div class="ttc" id="a02456_html_a3844f79355cdc724af9e33fcd9f141f2"><div class="ttname"><a href="a02456.html#a3844f79355cdc724af9e33fcd9f141f2">std::basic_istream::get</a></div><div class="ttdeci">__istream_type & get(char_type *__s, streamsize __n)</div><div class="ttdoc">Simple multiple-character extraction.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00354">istream:354</a></div></div>
<div class="ttc" id="a01476_html_ga6a860513044e23d34e553ea986e83fa1"><div class="ttname"><a href="a01476.html#ga6a860513044e23d34e553ea986e83fa1">std::true_type</a></div><div class="ttdeci">integral_constant< bool, true > true_type</div><div class="ttdoc">The type used as a compile-time boolean with true value.</div><div class="ttdef"><b>Definition:</b> <a href="a00167_source.html#l00075">type_traits:75</a></div></div>
<div class="ttc" id="a02456_html_affcef40a87f4c392930dd81dfda3798f"><div class="ttname"><a href="a02456.html#affcef40a87f4c392930dd81dfda3798f">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(unsigned short &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00175">istream:175</a></div></div>
<div class="ttc" id="a02456_html_a1e1c60e229c221a4f31a83b75a1eeef8"><div class="ttname"><a href="a02456.html#a1e1c60e229c221a4f31a83b75a1eeef8">std::basic_istream::get</a></div><div class="ttdeci">int_type get()</div><div class="ttdoc">Simple extraction.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00244">istream.tcc:244</a></div></div>
<div class="ttc" id="a02448_html_a8b4b27c391cfd8af35923ef8e6b918d1"><div class="ttname"><a href="a02448.html#a8b4b27c391cfd8af35923ef8e6b918d1">std::basic_ios::widen</a></div><div class="ttdeci">char_type widen(char __c) const</div><div class="ttdoc">Widens characters.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00449">basic_ios.h:449</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="a01538_html_a01cd5810d682dec840eee4ed6d2170d4"><div class="ttname"><a href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">std::operator>></a></div><div class="ttdeci">std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, 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#l01466">bitset:1466</a></div></div>
<div class="ttc" id="a02456_html_a5b971a9237bcd7ed0885083c0eb8ed7a"><div class="ttname"><a href="a02456.html#a5b971a9237bcd7ed0885083c0eb8ed7a">std::basic_istream::get</a></div><div class="ttdeci">__istream_type & get(__streambuf_type &__sb)</div><div class="ttdoc">Extraction into another streambuf.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00387">istream:387</a></div></div>
<div class="ttc" id="a02456_html_a561684f2822987bda56c7e8817f91892"><div class="ttname"><a href="a02456.html#a561684f2822987bda56c7e8817f91892">std::basic_istream::_M_gcount</a></div><div class="ttdeci">streamsize _M_gcount</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00082">istream:82</a></div></div>
<div class="ttc" id="a02448_html_ab79c2147554ac3080647828e0bd75c17"><div class="ttname"><a href="a02448.html#ab79c2147554ac3080647828e0bd75c17">std::basic_ios< char, _Traits >::char_type</a></div><div class="ttdeci">char char_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00076">basic_ios.h:76</a></div></div>
<div class="ttc" id="a02456_html_a4a94cc0cfdd17d93c58228b5141904a6"><div class="ttname"><a href="a02456.html#a4a94cc0cfdd17d93c58228b5141904a6">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(long &__n)</div><div class="ttdoc">Integer arithmetic extractors.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00186">istream:186</a></div></div>
<div class="ttc" id="a02456_html_a43227bf6cbcb63ecd9e34a82822ffb75"><div class="ttname"><a href="a02456.html#a43227bf6cbcb63ecd9e34a82822ffb75">std::basic_istream::unget</a></div><div class="ttdeci">__istream_type & unget()</div><div class="ttdoc">Unextracting the previous character.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00754">istream.tcc:754</a></div></div>
<div class="ttc" id="a02456_html_a2f0e75e1691608c66f634191e54ec4d9"><div class="ttname"><a href="a02456.html#a2f0e75e1691608c66f634191e54ec4d9">std::basic_istream::peek</a></div><div class="ttdeci">int_type peek()</div><div class="ttdoc">Looking ahead in the stream.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00628">istream.tcc:628</a></div></div>
<div class="ttc" id="a02456_html_a64f338d738e8de460fa4a2be744cff8f"><div class="ttname"><a href="a02456.html#a64f338d738e8de460fa4a2be744cff8f">std::basic_istream::ignore</a></div><div class="ttdeci">__istream_type & ignore()</div><div class="ttdoc">Simple extraction.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00468">istream.tcc:468</a></div></div>
<div class="ttc" id="a02456_html_a06aeddb9416bfb47fe49ef00c8980eed"><div class="ttname"><a href="a02456.html#a06aeddb9416bfb47fe49ef00c8980eed">std::basic_istream::seekg</a></div><div class="ttdeci">__istream_type & seekg(pos_type)</div><div class="ttdoc">Changing the current read position.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00853">istream.tcc:853</a></div></div>
<div class="ttc" id="a02456_html_af3f3c68797d19724d8add89b15a08908"><div class="ttname"><a href="a02456.html#af3f3c68797d19724d8add89b15a08908">std::basic_istream::sync</a></div><div class="ttdeci">int sync()</div><div class="ttdoc">Synchronizing the stream buffer.</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00789">istream.tcc:789</a></div></div>
<div class="ttc" id="a02464_html_ab1cea733f7a42667a83144a06857450b"><div class="ttname"><a href="a02464.html#ab1cea733f7a42667a83144a06857450b">std::basic_iostream::basic_iostream</a></div><div class="ttdeci">basic_iostream(basic_streambuf< _CharT, _Traits > *__sb)</div><div class="ttdoc">Constructor does nothing.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00849">istream:849</a></div></div>
<div class="ttc" id="a00386_html"><div class="ttname"><a href="a00386.html">istream.tcc</a></div></div>
<div class="ttc" id="a02456_html_a7556d385b49d449f67b8a0cd795977ff"><div class="ttname"><a href="a02456.html#a7556d385b49d449f67b8a0cd795977ff">std::basic_istream::~basic_istream</a></div><div class="ttdeci">virtual ~basic_istream()</div><div class="ttdoc">Base destructor.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00103">istream:103</a></div></div>
<div class="ttc" id="a02456_html_a84505fa4c5752e1143bb1458b3a23e6a"><div class="ttname"><a href="a02456.html#a84505fa4c5752e1143bb1458b3a23e6a">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(__ios_type &(*__pf)(__ios_type &))</div><div class="ttdoc">Interface for manipulators.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00124">istream:124</a></div></div>
<div class="ttc" id="a02452_html"><div class="ttname"><a href="a02452.html">std::basic_streambuf< char, _Traits ></a></div></div>
<div class="ttc" id="a00080_html"><div class="ttname"><a href="a00080.html">ios</a></div></div>
<div class="ttc" id="a00116_html"><div class="ttname"><a href="a00116.html">ostream</a></div></div>
<div class="ttc" id="a05856_html"><div class="ttname"><a href="a05856.html">std::ctype</a></div><div class="ttdoc">Primary class template ctype facet.This template class defines classification and conversion function...</div><div class="ttdef"><b>Definition:</b> <a href="a00401_source.html#l00612">locale_facets.h:612</a></div></div>
<div class="ttc" id="a02448_html_a62a4b454cbedd686b89e48fa9d6160c4"><div class="ttname"><a href="a02448.html#a62a4b454cbedd686b89e48fa9d6160c4">std::basic_ios::init</a></div><div class="ttdeci">void init(basic_streambuf< _CharT, _Traits > *__sb)</div><div class="ttdoc">All setup is performed here.</div><div class="ttdef"><b>Definition:</b> <a href="a00287_source.html#l00126">basic_ios.tcc:126</a></div></div>
<div class="ttc" id="a02460_html"><div class="ttname"><a href="a02460.html">std::basic_ostream< char, _Traits ></a></div></div>
<div class="ttc" id="a01538_html_a05eef5582eb5de62b76db4916f7adb84"><div class="ttname"><a href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">std::streamsize</a></div><div class="ttdeci">ptrdiff_t streamsize</div><div class="ttdoc">Integral type for I/O operation counts and buffer sizes.</div><div class="ttdef"><b>Definition:</b> <a href="a00440_source.html#l00098">postypes.h:98</a></div></div>
<div class="ttc" id="a02456_html_afbcef374ef55284de359fe5b920c20c3"><div class="ttname"><a href="a02456.html#afbcef374ef55284de359fe5b920c20c3">std::basic_istream::operator>></a></div><div class="ttdeci">__istream_type & operator>>(__istream_type &(*__pf)(__istream_type &))</div><div class="ttdoc">Interface for manipulators.</div><div class="ttdef"><b>Definition:</b> <a href="a00089_source.html#l00120">istream:120</a></div></div>
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