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<a href="a00284.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">// Iostreams base classes -*- 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> <span class="comment"></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/** @file bits/basic_ios.h</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is an internal header file, included by other library headers.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * Do not attempt to use it directly. @headername{ios}</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> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#ifndef _BASIC_IOS_H</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#define _BASIC_IOS_H 1</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">#pragma GCC system_header</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="a00413.html">bits/localefwd.h</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="a00392.html">bits/locale_classes.h</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="a00401.html">bits/locale_facets.h</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="a00608.html">bits/streambuf_iterator.h</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="a00422.html">bits/move.h</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="a01541.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> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Facet></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">inline</span> <span class="keyword">const</span> _Facet&</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  __check_facet(<span class="keyword">const</span> _Facet* __f)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> (!__f)</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  __throw_bad_cast();</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">return</span> *__f;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  }</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"></span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> /**</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * @brief Template class basic_ios, virtual base class for all</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * stream classes. </span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * @ingroup io</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> *</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * @tparam _CharT Type of character stream.</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * @tparam _Traits Traits for character type, defaults to</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * char_traits<_CharT>.</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> *</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * Most of the member functions called dispatched on stream objects</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> * (e.g., @c std::cout.foo(bar);) are consolidated in this class.</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> */</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">class </span>basic_ios : <span class="keyword">public</span> ios_base</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> * These are standard types. They permit a standardized way of</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * referring to names of (or names dependent on) the template</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * parameters, which are specific to the implementation.</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> */</span></div><div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="a02451.html#ab79c2147554ac3080647828e0bd75c17"> 76</a></span>  <span class="keyword">typedef</span> _CharT <a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a>;</div><div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="a02451.html#abed08c42ca8297417265888a1232709a"> 77</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::int_type <a class="code" href="a02451.html#abed08c42ca8297417265888a1232709a">int_type</a>;</div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="a02451.html#a1a7a5dbd05bfd3ebcc7a4febd35e58d9"> 78</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::pos_type <a class="code" href="a02451.html#a1a7a5dbd05bfd3ebcc7a4febd35e58d9">pos_type</a>;</div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="a02451.html#a9b0940b8e61b43dbb5c0f1bb268ce944"> 79</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Traits::off_type <a class="code" href="a02451.html#a9b0940b8e61b43dbb5c0f1bb268ce944">off_type</a>;</div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="a02451.html#a2ce652e072a7f6664c71548df3e43af4"> 80</a></span>  <span class="keyword">typedef</span> _Traits <a class="code" href="a02451.html#a2ce652e072a7f6664c71548df3e43af4">traits_type</a>;<span class="comment"></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"> 82</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * These are non-standard types.</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> */</span></div><div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="a02451.html#a182d68de5e0177334ea13de288105523"> 87</a></span>  <span class="keyword">typedef</span> <a class="code" href="a05859.html">ctype<_CharT></a> <a class="code" href="a02451.html#a182d68de5e0177334ea13de288105523">__ctype_type</a>;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">typedef</span> <a class="code" href="a05903.html">num_put<_CharT, ostreambuf_iterator<_CharT, _Traits></a> ></div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="a02451.html#acf5b180196f3fbcfd8ef2066fdb91f77"> 89</a></span>  <a class="code" href="a02451.html#acf5b180196f3fbcfd8ef2066fdb91f77">__num_put_type</a>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">typedef</span> <a class="code" href="a05899.html">num_get<_CharT, istreambuf_iterator<_CharT, _Traits></a> ></div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="a02451.html#ad5cc8c4b4c3cc5de19d7bb6c97b29abc"> 91</a></span>  <a class="code" href="a02451.html#ad5cc8c4b4c3cc5de19d7bb6c97b29abc">__num_get_type</a>;<span class="comment"></span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"></span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// Data members:</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="a02463.html">basic_ostream<_CharT, _Traits></a>* _M_tie;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">mutable</span> <a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a> _M_fill;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">mutable</span> <span class="keywordtype">bool</span> _M_fill_init;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="a02455.html">basic_streambuf<_CharT, _Traits></a>* _M_streambuf;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// Cached use_facet<ctype>, which is based on the current locale info.</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> <a class="code" href="a05863.html">__ctype_type</a>* _M_ctype;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// For ostream.</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">const</span> <a class="code" href="a05903.html">__num_put_type</a>* _M_num_put;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// For istream.</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> <a class="code" href="a05899.html">__num_get_type</a>* _M_num_get;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">public</span>:<span class="comment"></span></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><span class="comment"> /**</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> * @brief The quick-and-easy status check.</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> *</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> * This allows you to write constructs such as</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> * <code>if (!a_stream) ...</code> and <code>while (a_stream) ...</code></span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> */</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="a02451.html#ac4bc700ec1a8b5019d1ccdae5c7a4eee"> 117</a></span>  <span class="keyword">explicit</span> <span class="keyword">operator</span> bool()<span class="keyword"> const</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> !this-><a class="code" href="a02451.html#a9ce7a228245eefeceacc05fe6feff2e0">fail</a>(); }</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">operator</span> <span class="keywordtype">void</span>*() <span class="keyword">const</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02451.html#a9ce7a228245eefeceacc05fe6feff2e0">fail</a>() ? 0 : const_cast<basic_ios*>(<span class="keyword">this</span>); }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="a02451.html#a5156257b243c3bcbce9b33147df0eb91"> 125</a></span>  <a class="code" href="a02451.html#a5156257b243c3bcbce9b33147df0eb91">operator!</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> this-><a class="code" href="a02451.html#a9ce7a228245eefeceacc05fe6feff2e0">fail</a>(); }<span class="comment"></span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> /**</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * @brief Returns the error state of the stream buffer.</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> * @return A bit pattern (well, isn't everything?)</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> *</span></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> * See std::ios_base::iostate for the possible bit values. Most</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> * users will call one of the interpreting wrappers, e.g., good().</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>  <a class="code" href="a05799.html#a0487f09dbaf55c34d14350a54daf0bbd">iostate</a></div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887"> 137</a></span>  <a class="code" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">rdstate</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_streambuf_state; }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"></span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> /**</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> * @brief [Re]sets the error state.</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> * @param __state The new state flag(s) to set.</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> *</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * See std::ios_base::iostate for the possible bit values. Most</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> * users will not need to pass an argument.</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> */</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="a02451.html#a07a10e07246ef2a68c0c3f08d94c7607">clear</a>(<a class="code" href="a05799.html#a0487f09dbaf55c34d14350a54daf0bbd">iostate</a> __state = <a class="code" href="a05799.html#a9af3b6f8ace7d893e1a0853d8fb29778">goodbit</a>);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"></span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment"> /**</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> * @brief Sets additional flags in the error state.</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> * @param __state The additional state flag(s) to set.</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"> *</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"> * See std::ios_base::iostate for the possible bit values.</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"> */</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="a02451.html#a2da7d3305cba0695b1d1bec916ae64b0"> 157</a></span>  <a class="code" href="a02451.html#a2da7d3305cba0695b1d1bec916ae64b0">setstate</a>(iostate __state)</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  { this-><a class="code" href="a02451.html#a07a10e07246ef2a68c0c3f08d94c7607">clear</a>(this-><a class="code" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">rdstate</a>() | __state); }</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// Flip the internal state on for the proper state bits, then</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// rethrows the propagated exception if bit also set in</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// exceptions().</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  _M_setstate(<a class="code" href="a05799.html#a0487f09dbaf55c34d14350a54daf0bbd">iostate</a> __state)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// 27.6.1.2.1 Common requirements.</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="comment">// Turn this on without causing an ios::failure to be thrown.</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  _M_streambuf_state |= __state;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (this-><a class="code" href="a02451.html#a2af07612846b93cd56e19d56ad9ee7c5">exceptions</a>() & __state)</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  __throw_exception_again;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"></span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> /**</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> * @brief Fast error checking.</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> * @return True if no error flags are set.</span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> *</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> * A wrapper around rdstate.</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> */</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="a02451.html#a89bf36df306bb4682f9b74694619b2cf"> 180</a></span>  <a class="code" href="a02451.html#a89bf36df306bb4682f9b74694619b2cf">good</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> this-><a class="code" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">rdstate</a>() == 0; }</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"></span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> /**</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> * @brief Fast error checking.</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> * @return True if the eofbit is set.</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> *</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * Note that other iostate flags may also be set.</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> */</span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="a02451.html#a0a9f086f16995b35aad9db9d3adf843f"> 190</a></span>  <a class="code" href="a02451.html#a0a9f086f16995b35aad9db9d3adf843f">eof</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> (this-><a class="code" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">rdstate</a>() & <a class="code" href="a05799.html#a806f6f377e4fb4525d19e6d24df3cd62">eofbit</a>) != 0; }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"></span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> /**</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> * @brief Fast error checking.</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> * @return True if either the badbit or the failbit is set.</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> *</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> * Checking the badbit in fail() is historical practice.</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> * Note that other iostate flags may also be set.</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> */</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="a02451.html#a9ce7a228245eefeceacc05fe6feff2e0"> 201</a></span>  <a class="code" href="a02451.html#a9ce7a228245eefeceacc05fe6feff2e0">fail</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> (this-><a class="code" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">rdstate</a>() & (<a class="code" href="a05799.html#aa3cd1e1667eb566ad6e23a67117eef8b">badbit</a> | <a class="code" href="a05799.html#aec074f3d22b7cf5e70d1e91cb9f9d5c4">failbit</a>)) != 0; }</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</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"> * @brief Fast error checking.</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> * @return True if the badbit is set.</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> *</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * Note that other iostate flags may also be set.</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="keywordtype">bool</span></div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="a02451.html#ad79b64356f78198654c36480f670738c"> 211</a></span>  <a class="code" href="a02451.html#ad79b64356f78198654c36480f670738c">bad</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> (this-><a class="code" href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">rdstate</a>() & <a class="code" href="a05799.html#aa3cd1e1667eb566ad6e23a67117eef8b">badbit</a>) != 0; }</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"></span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> /**</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> * @brief Throwing exceptions on errors.</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment"> * @return The current exceptions mask.</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment"> *</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment"> * This changes nothing in the stream. See the one-argument version</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment"> * of exceptions(iostate) for the meaning of the return value.</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment"> */</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <a class="code" href="a05799.html#a0487f09dbaf55c34d14350a54daf0bbd">iostate</a></div><div class="line"><a name="l00222"></a><span class="lineno"><a class="line" href="a02451.html#a2af07612846b93cd56e19d56ad9ee7c5"> 222</a></span>  <a class="code" href="a02451.html#a2af07612846b93cd56e19d56ad9ee7c5">exceptions</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_exception; }</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></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * @brief Throwing exceptions on errors.</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * @param __except The new exceptions mask.</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> *</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * By default, error flags are set silently. You can set an</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> * exceptions mask for each stream; if a bit in the mask becomes set</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> * in the error flags, then an exception of type</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment"> * std::ios_base::failure is thrown.</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> <span class="comment"> * If the error flag is already set when the exceptions mask is</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> * added, the exception is immediately thrown. Try running the</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"> * following under GCC 3.1 or later:</span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"> * @code</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"> * #include <iostream></span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> * #include <fstream></span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> * #include <exception></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"> * int main()</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * {</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * std::set_terminate (__gnu_cxx::__verbose_terminate_handler);</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"> * std::ifstream f ("/etc/motd");</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"> * std::cerr << "Setting badbit\n";</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> * f.setstate (std::ios_base::badbit);</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"> * std::cerr << "Setting exception mask\n";</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> * f.exceptions (std::ios_base::badbit);</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> * }</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"> * @endcode</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="keywordtype">void</span></div><div class="line"><a name="l00257"></a><span class="lineno"><a class="line" href="a02451.html#aecd6ac5df7374c8b775a2912c4a014e9"> 257</a></span>  <a class="code" href="a02451.html#aecd6ac5df7374c8b775a2912c4a014e9">exceptions</a>(iostate __except)</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  {</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  _M_exception = __except;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  this-><a class="code" href="a02451.html#a07a10e07246ef2a68c0c3f08d94c7607">clear</a>(_M_streambuf_state);</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  }</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">// Constructor/destructor:</span><span class="comment"></span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> /**</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * @brief Constructor performs initialization.</span></div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> *</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> * The parameter is passed by derived streams.</span></div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment"> */</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keyword">explicit</span></div><div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="a02451.html#aec6ddbe42050441c71ec066b901f332c"> 270</a></span>  <a class="code" href="a02451.html#aec6ddbe42050441c71ec066b901f332c">basic_ios</a>(<a class="code" href="a02455.html">basic_streambuf<_CharT, _Traits></a>* __sb)</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  : <a class="code" href="a05799.html">ios_base</a>(), _M_tie(0), _M_fill(), _M_fill_init(false), _M_streambuf(0),</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  _M_ctype(0), _M_num_put(0), _M_num_get(0)</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  { this-><a class="code" href="a02451.html#a62a4b454cbedd686b89e48fa9d6160c4">init</a>(__sb); }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment"></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"> * @brief Empty.</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment"> *</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"> * The destructor does nothing. More specifically, it does not</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment"> * destroy the streambuf held by rdbuf().</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment"> */</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keyword">virtual</span></div><div class="line"><a name="l00282"></a><span class="lineno"><a class="line" href="a02451.html#a9988b5612652454d970d5ad856c6e8d2"> 282</a></span>  <a class="code" href="a02451.html#a9988b5612652454d970d5ad856c6e8d2">~basic_ios</a>() { }</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// Members:</span><span class="comment"></span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> /**</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * @brief Fetches the current @e tied stream.</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> * @return A pointer to the tied stream, or NULL if the stream is</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> * not tied.</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> *</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"> * A stream may be @e tied (or synchronized) to a second output</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> * stream. When this stream performs any I/O, the tied stream is</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> * first flushed. For example, @c std::cin is tied to @c std::cout.</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>  <a class="code" href="a02463.html">basic_ostream<_CharT, _Traits></a>*</div><div class="line"><a name="l00295"></a><span class="lineno"><a class="line" href="a02451.html#a191fdfa0d70cd77c7e396a6411d1febc"> 295</a></span>  <a class="code" href="a02451.html#a191fdfa0d70cd77c7e396a6411d1febc">tie</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_tie; }</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"> /**</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> * @brief Ties this stream to an output stream.</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> * @param __tiestr The output stream.</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> * @return The previously tied output stream, or NULL if the stream</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="comment"> * was not tied.</span></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"> * This sets up a new tie; see tie() for more.</span></div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment"> */</span></div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <a class="code" href="a02463.html">basic_ostream<_CharT, _Traits></a>*</div><div class="line"><a name="l00307"></a><span class="lineno"><a class="line" href="a02451.html#acb357e8950676669b63b8fc42d18bd57"> 307</a></span>  <a class="code" href="a02451.html#acb357e8950676669b63b8fc42d18bd57">tie</a>(<a class="code" href="a02463.html">basic_ostream<_CharT, _Traits></a>* __tiestr)</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  {</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <a class="code" href="a02463.html">basic_ostream<_CharT, _Traits></a>* __old = _M_tie;</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  _M_tie = __tiestr;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span> __old;</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  }</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="comment"></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> <span class="comment"> * @brief Accessing the underlying buffer.</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment"> * @return The current stream buffer.</span></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"> * This does not change the state of the stream.</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="comment"> */</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <a class="code" href="a02455.html">basic_streambuf<_CharT, _Traits></a>*</div><div class="line"><a name="l00321"></a><span class="lineno"><a class="line" href="a02451.html#a21f92cbfd296f81694cdaef956d0bd6d"> 321</a></span>  <a class="code" href="a02451.html#a21f92cbfd296f81694cdaef956d0bd6d">rdbuf</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_streambuf; }</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="comment"></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"> * @brief Changing the underlying buffer.</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="comment"> * @param __sb The new stream buffer.</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="comment"> * @return The previous stream buffer.</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="comment"> *</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="comment"> * Associates a new buffer with the current stream, and clears the</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="comment"> * error state.</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="comment"> *</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment"> * Due to historical accidents which the LWG refuses to correct, the</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment"> * I/O library suffers from a design error: this function is hidden</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="comment"> * in derived classes by overrides of the zero-argument @c rdbuf(),</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment"> * which is non-virtual for hysterical raisins. As a result, you</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment"> * must use explicit qualifications to access this function via any</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment"> * derived class. For example:</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"> * @code</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"> * std::fstream foo; // or some other derived type</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> * std::streambuf* p = .....;</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment"> *</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="comment"> * foo.ios::rdbuf(p); // ios == basic_ios<char></span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="comment"> * @endcode</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>  <a class="code" href="a02455.html">basic_streambuf<_CharT, _Traits></a>*</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <a class="code" href="a02451.html#a21f92cbfd296f81694cdaef956d0bd6d">rdbuf</a>(<a class="code" href="a02455.html">basic_streambuf<_CharT, _Traits></a>* __sb);</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"></span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="comment"> /**</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="comment"> * @brief Copies fields of __rhs into this.</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="comment"> * @param __rhs The source values for the copies.</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="comment"> * @return Reference to this object.</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="comment"> *</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="comment"> * All fields of __rhs are copied into this object except that rdbuf()</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="comment"> * and rdstate() remain unchanged. All values in the pword and iword</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="comment"> * arrays are copied. Before copying, each callback is invoked with</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment"> * erase_event. After copying, each (new) callback is invoked with</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"> * copyfmt_event. The final step is to copy exceptions().</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment"> */</span></div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <a class="code" href="a02451.html">basic_ios</a>&</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <a class="code" href="a02451.html#a57af447fc663746ea14bea76e80f5990">copyfmt</a>(<span class="keyword">const</span> <a class="code" href="a02451.html">basic_ios</a>& __rhs);</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"> /**</span></div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment"> * @brief Retrieves the @a empty character.</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment"> * @return The current fill character.</span></div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment"> *</span></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment"> * It defaults to a space (' ') in the current locale.</span></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="comment"> */</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a></div><div class="line"><a name="l00370"></a><span class="lineno"><a class="line" href="a02451.html#a8b6a8fc0ddc82328520534e9e99de88e"> 370</a></span>  <a class="code" href="a02451.html#a8b6a8fc0ddc82328520534e9e99de88e">fill</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">if</span> (!_M_fill_init)</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  _M_fill = this-><a class="code" href="a02451.html#a8b4b27c391cfd8af35923ef8e6b918d1">widen</a>(<span class="charliteral">' '</span>);</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  _M_fill_init = <span class="keyword">true</span>;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">return</span> _M_fill;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</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"> /**</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment"> * @brief Sets a new @a empty character.</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment"> * @param __ch The new character.</span></div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment"> * @return The previous fill character.</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment"> *</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment"> * The fill character is used to fill out space when P+ characters</span></div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="comment"> * have been requested (e.g., via setw), Q characters are actually</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="comment"> * used, and Q<P. It defaults to a space (' ') in the current locale.</span></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="comment"> */</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a></div><div class="line"><a name="l00390"></a><span class="lineno"><a class="line" href="a02451.html#a5b7921d8ecf89d75e188e9ed972af448"> 390</a></span>  <a class="code" href="a02451.html#a5b7921d8ecf89d75e188e9ed972af448">fill</a>(<a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a> __ch)</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  {</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a> __old = this-><a class="code" href="a02451.html#a8b6a8fc0ddc82328520534e9e99de88e">fill</a>();</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  _M_fill = __ch;</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">return</span> __old;</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  }</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">// Locales:</span><span class="comment"></span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment"> /**</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="comment"> * @brief Moves to a new locale.</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment"> * @param __loc The new locale.</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment"> * @return The previous locale.</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="comment"> *</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment"> * Calls @c ios_base::imbue(loc), and if a stream buffer is associated</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment"> * with this stream, calls that buffer's @c pubimbue(loc).</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="comment"> *</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="comment"> * Additional l10n notes are at</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="comment"> * http://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html</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>  <a class="code" href="a05819.html">locale</a></div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <a class="code" href="a02451.html#a0aee263fdd9d10e05634c8b8d0f2114e">imbue</a>(<span class="keyword">const</span> <a class="code" href="a05819.html">locale</a>& __loc);</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"> /**</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="comment"> * @brief Squeezes characters.</span></div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="comment"> * @param __c The character to narrow.</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="comment"> * @param __dfault The character to narrow.</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="comment"> * @return The narrowed character.</span></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"> * Maps a character of @c char_type to a character of @c char,</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="comment"> * if possible.</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"> *</span></div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment"> * Returns the result of</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> * @code</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="comment"> * std::use_facet<ctype<char_type> >(getloc()).narrow(c,dfault)</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment"> * @endcode</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> <span class="comment"> * Additional l10n notes are at</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment"> * http://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment"> */</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordtype">char</span></div><div class="line"><a name="l00430"></a><span class="lineno"><a class="line" href="a02451.html#a93e7a241510c19eb66c276379e493a20"> 430</a></span>  <a class="code" href="a02451.html#a93e7a241510c19eb66c276379e493a20">narrow</a>(<a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a> __c, <span class="keywordtype">char</span> __dfault)<span class="keyword"> const</span></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> __check_facet(_M_ctype).narrow(__c, __dfault); }</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="comment"></span></div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="comment"> /**</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="comment"> * @brief Widens characters.</span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="comment"> * @param __c The character to widen.</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="comment"> * @return The widened character.</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment"> *</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="comment"> * Maps a character of @c char to a character of @c char_type.</span></div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="comment"> *</span></div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="comment"> * Returns the result of</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="comment"> * @code</span></div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="comment"> * std::use_facet<ctype<char_type> >(getloc()).widen(c)</span></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> <span class="comment"> * @endcode</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"> * Additional l10n notes are at</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <span class="comment"> * http://gcc.gnu.org/onlinedocs/libstdc++/manual/localization.html</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="comment"> */</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a></div><div class="line"><a name="l00449"></a><span class="lineno"><a class="line" href="a02451.html#a8b4b27c391cfd8af35923ef8e6b918d1"> 449</a></span>  <a class="code" href="a02451.html#a8b4b27c391cfd8af35923ef8e6b918d1">widen</a>(<span class="keywordtype">char</span> __c)<span class="keyword"> const</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> __check_facet(_M_ctype).widen(__c); }</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">// 27.4.5.1 basic_ios constructors</span><span class="comment"></span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"> /**</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> * @brief Empty.</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment"> *</span></div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment"> * The default constructor does nothing and is not normally</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"> * accessible to users.</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"><a class="line" href="a02451.html#a3ecd9e8f6ad7e3f910a1b9ef2962c6a4"> 460</a></span>  <a class="code" href="a02451.html#a3ecd9e8f6ad7e3f910a1b9ef2962c6a4">basic_ios</a>()</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  : <a class="code" href="a05799.html">ios_base</a>(), _M_tie(0), _M_fill(<a class="code" href="a02451.html#ab79c2147554ac3080647828e0bd75c17">char_type</a>()), _M_fill_init(false), </div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  _M_streambuf(0), _M_ctype(0), _M_num_put(0), _M_num_get(0)</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  { }</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"></span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> /**</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"> * @brief All setup is performed here.</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> *</span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="comment"> * This is called from the public constructor. It is not virtual and</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"> * cannot be redefined.</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="keywordtype">void</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <a class="code" href="a02451.html#a62a4b454cbedd686b89e48fa9d6160c4">init</a>(<a class="code" href="a02455.html">basic_streambuf<_CharT, _Traits></a>* __sb);</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> </div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <a class="code" href="a02451.html#a3ecd9e8f6ad7e3f910a1b9ef2962c6a4">basic_ios</a>(<span class="keyword">const</span> <a class="code" href="a02451.html">basic_ios</a>&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <a class="code" href="a02451.html">basic_ios</a>& operator=(<span class="keyword">const</span> <a class="code" href="a02451.html">basic_ios</a>&) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  move(<a class="code" href="a02451.html">basic_ios</a>& __rhs)</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  {</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  ios_base::_M_move(__rhs);</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  _M_cache_locale(_M_ios_locale);</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  this-><a class="code" href="a02451.html#a191fdfa0d70cd77c7e396a6411d1febc">tie</a>(__rhs.tie(<span class="keyword">nullptr</span>));</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  _M_fill = __rhs._M_fill;</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  _M_fill_init = __rhs._M_fill_init;</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  _M_streambuf = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> </div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  move(<a class="code" href="a02451.html#a3ecd9e8f6ad7e3f910a1b9ef2962c6a4">basic_ios</a>&& __rhs)</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  { this->move(__rhs); }</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> </div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  swap(<a class="code" href="a02451.html#a3ecd9e8f6ad7e3f910a1b9ef2962c6a4">basic_ios</a>& __rhs) noexcept</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  {</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  ios_base::_M_swap(__rhs);</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  _M_cache_locale(_M_ios_locale);</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  __rhs._M_cache_locale(__rhs._M_ios_locale);</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  std::swap(_M_tie, __rhs._M_tie);</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  std::swap(_M_fill, __rhs._M_fill);</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  std::swap(_M_fill_init, __rhs._M_fill_init);</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  }</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> </div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  set_rdbuf(basic_streambuf<_CharT, _Traits>* __sb)</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  { _M_streambuf = __sb; }</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> </div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  _M_cache_locale(<span class="keyword">const</span> locale& __loc);</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  };</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="preprocessor">#include <<a class="code" href="a00287.html">bits/basic_ios.tcc</a>></span></div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span> </div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor">#endif </span><span class="comment">/* _BASIC_IOS_H */</span><span class="preprocessor"></span></div><div class="ttc" id="a00422_html"><div class="ttname"><a href="a00422.html">move.h</a></div></div>
<div class="ttc" id="a05799_html_aec074f3d22b7cf5e70d1e91cb9f9d5c4"><div class="ttname"><a href="a05799.html#aec074f3d22b7cf5e70d1e91cb9f9d5c4">std::ios_base::failbit</a></div><div class="ttdeci">static const iostate failbit</div><div class="ttdoc">Indicates that an input operation failed to read the expected characters, or that an output operation...</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00410">ios_base.h:410</a></div></div>
<div class="ttc" id="a02451_html"><div class="ttname"><a href="a02451.html">std::basic_ios</a></div><div class="ttdoc">Template class basic_ios, virtual base class for all stream classes.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00077">iosfwd:77</a></div></div>
<div class="ttc" id="a02451_html_a2ce652e072a7f6664c71548df3e43af4"><div class="ttname"><a href="a02451.html#a2ce652e072a7f6664c71548df3e43af4">std::basic_ios::traits_type</a></div><div class="ttdeci">_Traits traits_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00080">basic_ios.h:80</a></div></div>
<div class="ttc" id="a02451_html_a5b7921d8ecf89d75e188e9ed972af448"><div class="ttname"><a href="a02451.html#a5b7921d8ecf89d75e188e9ed972af448">std::basic_ios::fill</a></div><div class="ttdeci">char_type fill(char_type __ch)</div><div class="ttdoc">Sets a new empty character.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00390">basic_ios.h:390</a></div></div>
<div class="ttc" id="a02451_html_a0aee263fdd9d10e05634c8b8d0f2114e"><div class="ttname"><a href="a02451.html#a0aee263fdd9d10e05634c8b8d0f2114e">std::basic_ios::imbue</a></div><div class="ttdeci">locale imbue(const locale &__loc)</div><div class="ttdoc">Moves to a new locale.</div><div class="ttdef"><b>Definition:</b> <a href="a00287_source.html#l00114">basic_ios.tcc:114</a></div></div>
<div class="ttc" id="a00401_html"><div class="ttname"><a href="a00401.html">locale_facets.h</a></div></div>
<div class="ttc" id="a02451_html_abed08c42ca8297417265888a1232709a"><div class="ttname"><a href="a02451.html#abed08c42ca8297417265888a1232709a">std::basic_ios::int_type</a></div><div class="ttdeci">_Traits::int_type int_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00077">basic_ios.h:77</a></div></div>
<div class="ttc" id="a05799_html_a9af3b6f8ace7d893e1a0853d8fb29778"><div class="ttname"><a href="a05799.html#a9af3b6f8ace7d893e1a0853d8fb29778">std::ios_base::goodbit</a></div><div class="ttdeci">static const iostate goodbit</div><div class="ttdoc">Indicates all is well.</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00413">ios_base.h:413</a></div></div>
<div class="ttc" id="a02451_html_a57af447fc663746ea14bea76e80f5990"><div class="ttname"><a href="a02451.html#a57af447fc663746ea14bea76e80f5990">std::basic_ios::copyfmt</a></div><div class="ttdeci">basic_ios & copyfmt(const basic_ios &__rhs)</div><div class="ttdoc">Copies fields of __rhs into this.</div><div class="ttdef"><b>Definition:</b> <a href="a00287_source.html#l00063">basic_ios.tcc:63</a></div></div>
<div class="ttc" id="a05899_html"><div class="ttname"><a href="a05899.html">std::num_get</a></div><div class="ttdoc">Primary class template num_get.This facet encapsulates the code to parse and return a number from a s...</div><div class="ttdef"><b>Definition:</b> <a href="a00401_source.html#l01952">locale_facets.h:1952</a></div></div>
<div class="ttc" id="a05799_html"><div class="ttname"><a href="a05799.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="a02451_html_a07a10e07246ef2a68c0c3f08d94c7607"><div class="ttname"><a href="a02451.html#a07a10e07246ef2a68c0c3f08d94c7607">std::basic_ios::clear</a></div><div class="ttdeci">void clear(iostate __state=goodbit)</div><div class="ttdoc">[Re]sets the error state.</div><div class="ttdef"><b>Definition:</b> <a href="a00287_source.html#l00041">basic_ios.tcc:41</a></div></div>
<div class="ttc" id="a02451_html_a62a4b454cbedd686b89e48fa9d6160c4"><div class="ttname"><a href="a02451.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="a05863_html"><div class="ttname"><a href="a05863.html">std::ctype< char ></a></div><div class="ttdoc">The ctype<char> specialization.This class defines classification and conversion functions for the cha...</div><div class="ttdef"><b>Definition:</b> <a href="a00401_source.html#l00681">locale_facets.h:681</a></div></div>
<div class="ttc" id="a02451_html_a21f92cbfd296f81694cdaef956d0bd6d"><div class="ttname"><a href="a02451.html#a21f92cbfd296f81694cdaef956d0bd6d">std::basic_ios::rdbuf</a></div><div class="ttdeci">basic_streambuf< _CharT, _Traits > * rdbuf() const</div><div class="ttdoc">Accessing the underlying buffer.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00321">basic_ios.h:321</a></div></div>
<div class="ttc" id="a02451_html_a8b6a8fc0ddc82328520534e9e99de88e"><div class="ttname"><a href="a02451.html#a8b6a8fc0ddc82328520534e9e99de88e">std::basic_ios::fill</a></div><div class="ttdeci">char_type fill() const</div><div class="ttdoc">Retrieves the empty character.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00370">basic_ios.h:370</a></div></div>
<div class="ttc" id="a02451_html_a9988b5612652454d970d5ad856c6e8d2"><div class="ttname"><a href="a02451.html#a9988b5612652454d970d5ad856c6e8d2">std::basic_ios::~basic_ios</a></div><div class="ttdeci">virtual ~basic_ios()</div><div class="ttdoc">Empty.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00282">basic_ios.h:282</a></div></div>
<div class="ttc" id="a02451_html_a8b4b27c391cfd8af35923ef8e6b918d1"><div class="ttname"><a href="a02451.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="a02451_html_acf5b180196f3fbcfd8ef2066fdb91f77"><div class="ttname"><a href="a02451.html#acf5b180196f3fbcfd8ef2066fdb91f77">std::basic_ios::__num_put_type</a></div><div class="ttdeci">num_put< _CharT, ostreambuf_iterator< _CharT, _Traits > > __num_put_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00089">basic_ios.h:89</a></div></div>
<div class="ttc" id="a02451_html_a2af07612846b93cd56e19d56ad9ee7c5"><div class="ttname"><a href="a02451.html#a2af07612846b93cd56e19d56ad9ee7c5">std::basic_ios::exceptions</a></div><div class="ttdeci">iostate exceptions() const</div><div class="ttdoc">Throwing exceptions on errors.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00222">basic_ios.h:222</a></div></div>
<div class="ttc" id="a02451_html_ad79b64356f78198654c36480f670738c"><div class="ttname"><a href="a02451.html#ad79b64356f78198654c36480f670738c">std::basic_ios::bad</a></div><div class="ttdeci">bool bad() const</div><div class="ttdoc">Fast error checking.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00211">basic_ios.h:211</a></div></div>
<div class="ttc" id="a05799_html_aa3cd1e1667eb566ad6e23a67117eef8b"><div class="ttname"><a href="a05799.html#aa3cd1e1667eb566ad6e23a67117eef8b">std::ios_base::badbit</a></div><div class="ttdeci">static const iostate badbit</div><div class="ttdoc">Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error fro...</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00402">ios_base.h:402</a></div></div>
<div class="ttc" id="a02451_html_a93e7a241510c19eb66c276379e493a20"><div class="ttname"><a href="a02451.html#a93e7a241510c19eb66c276379e493a20">std::basic_ios::narrow</a></div><div class="ttdeci">char narrow(char_type __c, char __dfault) const</div><div class="ttdoc">Squeezes characters.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00430">basic_ios.h:430</a></div></div>
<div class="ttc" id="a00287_html"><div class="ttname"><a href="a00287.html">basic_ios.tcc</a></div></div>
<div class="ttc" id="a02451_html_a191fdfa0d70cd77c7e396a6411d1febc"><div class="ttname"><a href="a02451.html#a191fdfa0d70cd77c7e396a6411d1febc">std::basic_ios::tie</a></div><div class="ttdeci">basic_ostream< _CharT, _Traits > * tie() const</div><div class="ttdoc">Fetches the current tied stream.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00295">basic_ios.h:295</a></div></div>
<div class="ttc" id="a02451_html_a5f082a6a02ca25407fa6806bbd84e887"><div class="ttname"><a href="a02451.html#a5f082a6a02ca25407fa6806bbd84e887">std::basic_ios::rdstate</a></div><div class="ttdeci">iostate rdstate() const</div><div class="ttdoc">Returns the error state of the stream buffer.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00137">basic_ios.h:137</a></div></div>
<div class="ttc" id="a02451_html_ad5cc8c4b4c3cc5de19d7bb6c97b29abc"><div class="ttname"><a href="a02451.html#ad5cc8c4b4c3cc5de19d7bb6c97b29abc">std::basic_ios::__num_get_type</a></div><div class="ttdeci">num_get< _CharT, istreambuf_iterator< _CharT, _Traits > > __num_get_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00091">basic_ios.h:91</a></div></div>
<div class="ttc" id="a02455_html"><div class="ttname"><a href="a02455.html">std::basic_streambuf</a></div><div class="ttdoc">The actual work of input and output (interface).</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00080">iosfwd:80</a></div></div>
<div class="ttc" id="a05799_html_a806f6f377e4fb4525d19e6d24df3cd62"><div class="ttname"><a href="a05799.html#a806f6f377e4fb4525d19e6d24df3cd62">std::ios_base::eofbit</a></div><div class="ttdeci">static const iostate eofbit</div><div class="ttdoc">Indicates that an input operation reached the end of an input sequence.</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00405">ios_base.h:405</a></div></div>
<div class="ttc" id="a01541_html"><div class="ttname"><a href="a01541.html">std</a></div><div class="ttdoc">ISO C++ entities toplevel namespace is std.</div></div>
<div class="ttc" id="a02451_html_a1a7a5dbd05bfd3ebcc7a4febd35e58d9"><div class="ttname"><a href="a02451.html#a1a7a5dbd05bfd3ebcc7a4febd35e58d9">std::basic_ios::pos_type</a></div><div class="ttdeci">_Traits::pos_type pos_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00078">basic_ios.h:78</a></div></div>
<div class="ttc" id="a02463_html"><div class="ttname"><a href="a02463.html">std::basic_ostream</a></div><div class="ttdoc">Template class basic_ostream.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00086">iosfwd:86</a></div></div>
<div class="ttc" id="a02451_html_a89bf36df306bb4682f9b74694619b2cf"><div class="ttname"><a href="a02451.html#a89bf36df306bb4682f9b74694619b2cf">std::basic_ios::good</a></div><div class="ttdeci">bool good() const</div><div class="ttdoc">Fast error checking.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00180">basic_ios.h:180</a></div></div>
<div class="ttc" id="a02451_html_a3ecd9e8f6ad7e3f910a1b9ef2962c6a4"><div class="ttname"><a href="a02451.html#a3ecd9e8f6ad7e3f910a1b9ef2962c6a4">std::basic_ios::basic_ios</a></div><div class="ttdeci">basic_ios()</div><div class="ttdoc">Empty.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00460">basic_ios.h:460</a></div></div>
<div class="ttc" id="a02451_html_a5156257b243c3bcbce9b33147df0eb91"><div class="ttname"><a href="a02451.html#a5156257b243c3bcbce9b33147df0eb91">std::basic_ios::operator!</a></div><div class="ttdeci">bool operator!() const</div><div class="ttdoc">The quick-and-easy status check.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00125">basic_ios.h:125</a></div></div>
<div class="ttc" id="a02451_html_aecd6ac5df7374c8b775a2912c4a014e9"><div class="ttname"><a href="a02451.html#aecd6ac5df7374c8b775a2912c4a014e9">std::basic_ios::exceptions</a></div><div class="ttdeci">void exceptions(iostate __except)</div><div class="ttdoc">Throwing exceptions on errors.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00257">basic_ios.h:257</a></div></div>
<div class="ttc" id="a00413_html"><div class="ttname"><a href="a00413.html">localefwd.h</a></div></div>
<div class="ttc" id="a05799_html_a0487f09dbaf55c34d14350a54daf0bbd"><div class="ttname"><a href="a05799.html#a0487f09dbaf55c34d14350a54daf0bbd">std::ios_base::iostate</a></div><div class="ttdeci">_Ios_Iostate iostate</div><div class="ttdoc">This is a bitmask type.</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00398">ios_base.h:398</a></div></div>
<div class="ttc" id="a02451_html_ab79c2147554ac3080647828e0bd75c17"><div class="ttname"><a href="a02451.html#ab79c2147554ac3080647828e0bd75c17">std::basic_ios::char_type</a></div><div class="ttdeci">_CharT 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="a00608_html"><div class="ttname"><a href="a00608.html">streambuf_iterator.h</a></div></div>
<div class="ttc" id="a05819_html"><div class="ttname"><a href="a05819.html">std::locale</a></div><div class="ttdoc">Container class for localization functionality.The locale class is first a class wrapper for C librar...</div><div class="ttdef"><b>Definition:</b> <a href="a00392_source.html#l00062">locale_classes.h:62</a></div></div>
<div class="ttc" id="a02451_html_acb357e8950676669b63b8fc42d18bd57"><div class="ttname"><a href="a02451.html#acb357e8950676669b63b8fc42d18bd57">std::basic_ios::tie</a></div><div class="ttdeci">basic_ostream< _CharT, _Traits > * tie(basic_ostream< _CharT, _Traits > *__tiestr)</div><div class="ttdoc">Ties this stream to an output stream.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00307">basic_ios.h:307</a></div></div>
<div class="ttc" id="a02451_html_a0a9f086f16995b35aad9db9d3adf843f"><div class="ttname"><a href="a02451.html#a0a9f086f16995b35aad9db9d3adf843f">std::basic_ios::eof</a></div><div class="ttdeci">bool eof() const</div><div class="ttdoc">Fast error checking.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00190">basic_ios.h:190</a></div></div>
<div class="ttc" id="a02451_html_a182d68de5e0177334ea13de288105523"><div class="ttname"><a href="a02451.html#a182d68de5e0177334ea13de288105523">std::basic_ios::__ctype_type</a></div><div class="ttdeci">ctype< _CharT > __ctype_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00087">basic_ios.h:87</a></div></div>
<div class="ttc" id="a02451_html_aec6ddbe42050441c71ec066b901f332c"><div class="ttname"><a href="a02451.html#aec6ddbe42050441c71ec066b901f332c">std::basic_ios::basic_ios</a></div><div class="ttdeci">basic_ios(basic_streambuf< _CharT, _Traits > *__sb)</div><div class="ttdoc">Constructor performs initialization.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00270">basic_ios.h:270</a></div></div>
<div class="ttc" id="a02451_html_a9ce7a228245eefeceacc05fe6feff2e0"><div class="ttname"><a href="a02451.html#a9ce7a228245eefeceacc05fe6feff2e0">std::basic_ios::fail</a></div><div class="ttdeci">bool fail() const</div><div class="ttdoc">Fast error checking.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00201">basic_ios.h:201</a></div></div>
<div class="ttc" id="a00392_html"><div class="ttname"><a href="a00392.html">locale_classes.h</a></div></div>
<div class="ttc" id="a02451_html_a9b0940b8e61b43dbb5c0f1bb268ce944"><div class="ttname"><a href="a02451.html#a9b0940b8e61b43dbb5c0f1bb268ce944">std::basic_ios::off_type</a></div><div class="ttdeci">_Traits::off_type off_type</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00079">basic_ios.h:79</a></div></div>
<div class="ttc" id="a02451_html_a2da7d3305cba0695b1d1bec916ae64b0"><div class="ttname"><a href="a02451.html#a2da7d3305cba0695b1d1bec916ae64b0">std::basic_ios::setstate</a></div><div class="ttdeci">void setstate(iostate __state)</div><div class="ttdoc">Sets additional flags in the error state.</div><div class="ttdef"><b>Definition:</b> <a href="a00284_source.html#l00157">basic_ios.h:157</a></div></div>
<div class="ttc" id="a05903_html"><div class="ttname"><a href="a05903.html">std::num_put</a></div><div class="ttdoc">Primary class template num_put.This facet encapsulates the code to convert a number to a string....</div><div class="ttdef"><b>Definition:</b> <a href="a00401_source.html#l02293">locale_facets.h:2293</a></div></div>
<div class="ttc" id="a05859_html"><div class="ttname"><a href="a05859.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>
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