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<a href="a00149.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">// Stream buffer 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 include/streambuf</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is a Standard C++ Library header.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">//</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// ISO C++ 14882: 27.5 Stream buffers</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">//</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifndef _GLIBXX_STREAMBUF</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define _GLIBXX_STREAMBUF 1</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#pragma GCC system_header</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="a00656.html">bits/c++config.h</a>></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="a00083.html">iosfwd</a>></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="a00413.html">bits/localefwd.h</a>></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include <<a class="code" href="a00383.html">bits/ios_base.h</a>></span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <<a class="code" href="a00311.html">bits/cpp_type_traits.h</a>></span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <<a class="code" href="a01088.html">ext/type_traits.h</a>></span></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">namespace </span><a class="code" href="a01538.html">std</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</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="preprocessor">#define _IsUnused __attribute__ ((__unused__))</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  __copy_streambufs_eof(basic_streambuf<_CharT, _Traits>*,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  basic_streambuf<_CharT, _Traits>*, <span class="keywordtype">bool</span>&);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"></span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> /**</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * @brief The actual work of input and output (interface).</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * @ingroup io</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> *</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * @tparam _CharT Type of character stream.</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * @tparam _Traits Traits for character type, defaults to</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * char_traits<_CharT>.</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> *</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> * This is a base class. Derived stream buffers each control a</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * pair of character sequences: one for input, and one for output.</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> *</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> * Section [27.5.1] of the standard describes the requirements and</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * behavior of stream buffer classes. That section (three paragraphs)</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * is reproduced here, for simplicity and accuracy.</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"> * -# Stream buffers can impose various constraints on the sequences</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> * they control. Some constraints are:</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * - The controlled input sequence can be not readable.</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * - The controlled output sequence can be not writable.</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * - The controlled sequences can be associated with the contents of</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> * other representations for character sequences, such as external</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> * files.</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * - The controlled sequences can support operations @e directly to or</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * from associated sequences.</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * - The controlled sequences can impose limitations on how the</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> * program can read characters from a sequence, write characters to</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * a sequence, put characters back into an input sequence, or alter</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> * the stream position.</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> * .</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * -# Each sequence is characterized by three pointers which, if non-null,</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * all point into the same @c charT array object. The array object</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> * represents, at any moment, a (sub)sequence of characters from the</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> * sequence. Operations performed on a sequence alter the values</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * stored in these pointers, perform reads and writes directly to or</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> * from associated sequences, and alter <em>the stream position</em> and</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> * conversion state as needed to maintain this subsequence relationship.</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> * The three pointers are:</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> * - the <em>beginning pointer</em>, or lowest element address in the</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> * array (called @e xbeg here);</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * - the <em>next pointer</em>, or next element address that is a</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> * current candidate for reading or writing (called @e xnext here);</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * - the <em>end pointer</em>, or first element address beyond the</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * end of the array (called @e xend here).</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> * .</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> * -# The following semantic constraints shall always apply for any set</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> * of three pointers for a sequence, using the pointer names given</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> * immediately above:</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * - If @e xnext is not a null pointer, then @e xbeg and @e xend shall</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * also be non-null pointers into the same @c charT array, as</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> * described above; otherwise, @e xbeg and @e xend shall also be null.</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> * - If @e xnext is not a null pointer and @e xnext < @e xend for an</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> * output sequence, then a <em>write position</em> is available.</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> * In this case, @e *xnext shall be assignable as the next element</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> * to write (to put, or to store a character value, into the sequence).</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> * - If @e xnext is not a null pointer and @e xbeg < @e xnext for an</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> * input sequence, then a <em>putback position</em> is available.</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> * In this case, @e xnext[-1] shall have a defined value and is the</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> * next (preceding) element to store a character that is put back</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> * into the input sequence.</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * - If @e xnext is not a null pointer and @e xnext< @e xend for an</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * input sequence, then a <em>read position</em> is available.</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * In this case, @e *xnext shall have a defined value and is the</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> * next element to read (to get, or to obtain a character value,</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> * from the sequence).</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> */</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">class </span>basic_streambuf</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="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> * These are standard types. They permit a standardized way of</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * referring to names of (or names dependent on) the template</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> * parameters, which are specific to the implementation.</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> */</span></div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf"> 131</a></span>  <span class="keyword">typedef</span> _CharT <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>;</div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6"> 132</a></span>  <span class="keyword">typedef</span> _Traits <a class="code" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">traits_type</a>;</div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b"> 133</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> traits_type::int_type <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a>;</div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa"> 134</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> traits_type::pos_type <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a>;</div><div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="a02452.html#ae0d813da6c3d39659299a6e7831ae265"> 135</a></span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> traits_type::off_type <a class="code" href="a02452.html#ae0d813da6c3d39659299a6e7831ae265">off_type</a>;<span class="comment"></span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"></span><span class="comment"> /// This is a non-standard type.</span></div><div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="a02452.html#a20adcc1bccab9fa3678b34e078e59e8c"> 140</a></span> <span class="comment"></span> <span class="keyword">typedef</span> <a class="code" href="a02452.html">basic_streambuf<char_type, traits_type></a> <a class="code" href="a02452.html#a20adcc1bccab9fa3678b34e078e59e8c">__streambuf_type</a>;<span class="comment"></span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"></span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a02448.html">basic_ios</a><<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>, <a class="code" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">traits_type</a>>;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a02456.html">basic_istream</a><<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>, <a class="code" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">traits_type</a>>;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a02460.html">basic_ostream</a><<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>, <a class="code" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">traits_type</a>>;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a02484.html">istreambuf_iterator</a><<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>, <a class="code" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">traits_type</a>>;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a02488.html">ostreambuf_iterator</a><<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>, <a class="code" href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">traits_type</a>>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">friend</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  __copy_streambufs_eof<>(<a class="code" href="a02452.html">basic_streambuf</a>*, <a class="code" href="a02452.html">basic_streambuf</a>*, <span class="keywordtype">bool</span>&);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">template</span><<span class="keywordtype">bool</span> _IsMove, <span class="keyword">typename</span> _CharT2></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">friend</span> <span class="keyword">typename</span> __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  _CharT2*>::__type</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  __copy_move_a2(<a class="code" href="a02484.html">istreambuf_iterator<_CharT2></a>,</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="a02484.html">istreambuf_iterator<_CharT2></a>, _CharT2*);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT2></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">friend</span> <span class="keyword">typename</span> __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <a class="code" href="a02484.html">istreambuf_iterator<_CharT2></a> >::__type</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  find(<a class="code" href="a02484.html">istreambuf_iterator<_CharT2></a>, <a class="code" href="a02484.html">istreambuf_iterator<_CharT2></a>,</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">const</span> _CharT2&);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT2, <span class="keyword">typename</span> _Distance></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">friend</span> <span class="keyword">typename</span> __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">void</span>>::__type</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <a class="code" href="a01538.html#aeb89c7ad75934cae5b0970b922879fdb">advance</a>(<a class="code" href="a02484.html">istreambuf_iterator<_CharT2></a>&, _Distance);</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT2, <span class="keyword">typename</span> _Traits2></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">friend</span> <a class="code" href="a02456.html">basic_istream<_CharT2, _Traits2></a>&</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<_CharT2, _Traits2></a>&, _CharT2*);</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT2, <span class="keyword">typename</span> _Traits2, <span class="keyword">typename</span> _Alloc></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">friend</span> <a class="code" href="a02456.html">basic_istream<_CharT2, _Traits2></a>&</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">operator>></a>(<a class="code" href="a02456.html">basic_istream<_CharT2, _Traits2></a>&,</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="a04768.html">basic_string<_CharT2, _Traits2, _Alloc></a>&);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT2, <span class="keyword">typename</span> _Traits2, <span class="keyword">typename</span> _Alloc></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">friend</span> <a class="code" href="a02456.html">basic_istream<_CharT2, _Traits2></a>&</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <a class="code" href="a01538.html#a3590b5fa48da4e75fbf0054287e3a46b">getline</a>(<a class="code" href="a02456.html">basic_istream<_CharT2, _Traits2></a>&,</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a class="code" href="a04768.html">basic_string<_CharT2, _Traits2, _Alloc></a>&, _CharT2);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">/*</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> * This is based on _IO_FILE, just reordered to be more consistent,</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * and is intended to be the most minimal abstraction for an</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * internal buffer.</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * - get == input == read</span></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> * - put == output == write</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> */</span></div><div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d"> 191</a></span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* <a class="code" href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d">_M_in_beg</a>; <span class="comment">///< Start of get area.</span></div><div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625"> 192</a></span> <span class="comment"></span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* <a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a>; <span class="comment">///< Current read area.</span></div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4"> 193</a></span> <span class="comment"></span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* <a class="code" href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4">_M_in_end</a>; <span class="comment">///< End of get area.</span></div><div class="line"><a name="l00194"></a><span class="lineno"><a class="line" href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61"> 194</a></span> <span class="comment"></span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* <a class="code" href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61">_M_out_beg</a>; <span class="comment">///< Start of put area.</span></div><div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53"> 195</a></span> <span class="comment"></span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* <a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a>; <span class="comment">///< Current put area.</span></div><div class="line"><a name="l00196"></a><span class="lineno"><a class="line" href="a02452.html#af2973fa34894190ce5885749fa148bbe"> 196</a></span> <span class="comment"></span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* <a class="code" href="a02452.html#af2973fa34894190ce5885749fa148bbe">_M_out_end</a>; <span class="comment">///< End of put area.</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> /// Current locale setting.</span></div><div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564"> 199</a></span> <span class="comment"></span> <a class="code" href="a05816.html">locale</a> <a class="code" href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564">_M_buf_locale</a>;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> /// Destructor deallocates no buffer space.</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"></span> <span class="keyword">virtual</span></div><div class="line"><a name="l00204"></a><span class="lineno"><a class="line" href="a02452.html#ae09ce37bf4266e600cdc23c7648b7808"> 204</a></span>  <a class="code" href="a02452.html#ae09ce37bf4266e600cdc23c7648b7808">~basic_streambuf</a>()</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  { }</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">// [27.5.2.2.1] locales</span><span class="comment"></span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> /**</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> * @brief Entry point for imbue().</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * @param __loc The new locale.</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * @return The previous locale.</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> *</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> * Calls the derived imbue(__loc).</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>  <a class="code" href="a05816.html">locale</a></div><div class="line"><a name="l00216"></a><span class="lineno"><a class="line" href="a02452.html#a8e7a46a08c85184d8b6ea1e5d87b7736"> 216</a></span>  <a class="code" href="a02452.html#a8e7a46a08c85184d8b6ea1e5d87b7736">pubimbue</a>(<span class="keyword">const</span> <a class="code" href="a05816.html">locale</a>& __loc)</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  {</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a class="code" href="a05816.html">locale</a> __tmp(this-><a class="code" href="a02452.html#a09508701b27d68740a5473d096437f65">getloc</a>());</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  this-><a class="code" href="a02452.html#affba476244b59486bd630e26ca375b0f">imbue</a>(__loc);</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564">_M_buf_locale</a> = __loc;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">return</span> __tmp;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"></span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> /**</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> * @brief Locale access.</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * @return The current locale in effect.</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> *</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * If pubimbue(loc) has been called, then the most recent @c loc</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * is returned. Otherwise the global locale in effect at the time</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> * of construction is returned.</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> */</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <a class="code" href="a05816.html">locale</a></div><div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="a02452.html#a09508701b27d68740a5473d096437f65"> 233</a></span>  <a class="code" href="a02452.html#a09508701b27d68740a5473d096437f65">getloc</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564">_M_buf_locale</a>; }</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// [27.5.2.2.2] buffer management and positioning</span><span class="comment"></span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> * @brief Entry points for derived buffer functions.</span></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"> *</span></div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> * The public versions of @c pubfoo dispatch to the protected</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> * derived @c foo member functions, passing the arguments (if any)</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * and returning the result unchanged.</span></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> */</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <a class="code" href="a02452.html">basic_streambuf</a>*</div><div class="line"><a name="l00246"></a><span class="lineno"><a class="line" href="a02452.html#a51cd8c6721f963f8bf1c5474c628b70a"> 246</a></span>  <a class="code" href="a02452.html#a51cd8c6721f963f8bf1c5474c628b70a">pubsetbuf</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02452.html#aad2e731291673229100bde1f24ce828f">setbuf</a>(__s, __n); }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"></span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> /**</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> * @brief Alters the stream position.</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> * @param __off Offset.</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> * @param __way Value for ios_base::seekdir.</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment"> * @param __mode Value for ios_base::openmode.</span></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment"> *</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> * Calls virtual seekoff function.</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> */</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a></div><div class="line"><a name="l00258"></a><span class="lineno"><a class="line" href="a02452.html#abaa4b2714067328ce4b91a503b17fa73"> 258</a></span>  <a class="code" href="a02452.html#abaa4b2714067328ce4b91a503b17fa73">pubseekoff</a>(<a class="code" href="a02452.html#ae0d813da6c3d39659299a6e7831ae265">off_type</a> __off, ios_base::seekdir __way,</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  ios_base::openmode __mode = <a class="code" href="a05796.html#a652e2323949eea3d906e1c81bd8ce8f7">ios_base::in</a> | <a class="code" href="a05796.html#a7187e216e5d16ec820ea1791002f85e0">ios_base::out</a>)</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02452.html#ad6d5177e376efdb0dccf62890eebc9b0">seekoff</a>(__off, __way, __mode); }</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"></span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> /**</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> * @brief Alters the stream position.</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> * @param __sp Position</span></div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * @param __mode Value for ios_base::openmode.</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"> * Calls virtual seekpos function.</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>  <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a></div><div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="a02452.html#a3138ab00e52afd7a538cdffa25e21937"> 270</a></span>  <a class="code" href="a02452.html#a3138ab00e52afd7a538cdffa25e21937">pubseekpos</a>(<a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a> __sp,</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  ios_base::openmode __mode = <a class="code" href="a05796.html#a652e2323949eea3d906e1c81bd8ce8f7">ios_base::in</a> | <a class="code" href="a05796.html#a7187e216e5d16ec820ea1791002f85e0">ios_base::out</a>)</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02452.html#a008405d586f640e109c7ab7bf424aa39">seekpos</a>(__sp, __mode); }</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"></span></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"> * @brief Calls virtual sync function.</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment"> */</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordtype">int</span></div><div class="line"><a name="l00278"></a><span class="lineno"><a class="line" href="a02452.html#ac81d2dad6dac4c185c31937ee10077ce"> 278</a></span>  <a class="code" href="a02452.html#ac81d2dad6dac4c185c31937ee10077ce">pubsync</a>() { <span class="keywordflow">return</span> this-><a class="code" href="a02452.html#a407510ac810a42b173f3bd553959bfb5">sync</a>(); }<span class="comment"></span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment"> //@}</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="comment">// [27.5.2.2.3] get area</span><span class="comment"></span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment"> /**</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment"> * @brief Looking ahead into the stream.</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment"> * @return The number of characters available.</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"> * If a read position is available, returns the number of characters</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> * available for reading before the buffer must be refilled.</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> * Otherwise returns the derived @c showmanyc().</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>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00291"></a><span class="lineno"><a class="line" href="a02452.html#a924a684fe2a6844d766e25f4051b705c"> 291</a></span>  <a class="code" href="a02452.html#a924a684fe2a6844d766e25f4051b705c">in_avail</a>()</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  {</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keyword">const</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __ret = this-><a class="code" href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b">egptr</a>() - this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>();</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> __ret ? __ret : this-><a class="code" href="a02452.html#a85e9299b4d91188c1c0070111604ece8">showmanyc</a>();</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"></span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> /**</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> * @brief Getting the next character.</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> * @return The next character, or eof.</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> *</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> * Calls @c sbumpc(), and if that function returns</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="comment"> * @c traits::eof(), so does this function. Otherwise, @c sgetc().</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>  int_type</div><div class="line"><a name="l00305"></a><span class="lineno"><a class="line" href="a02452.html#a6d281db46069df3043b566f10e5397b2"> 305</a></span>  <a class="code" href="a02452.html#a6d281db46069df3043b566f10e5397b2">snextc</a>()</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  {</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret = traits_type::eof();</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">if</span> (__builtin_expect(!traits_type::eq_int_type(this-><a class="code" href="a02452.html#a72d8037e21ad370e3643ff3c865f91f9">sbumpc</a>(),</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  __ret), <span class="keyword">true</span>))</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  __ret = this-><a class="code" href="a02452.html#ac773fb2c87cf938fb6eb89c987f8e04e">sgetc</a>();</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span> __ret;</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 Getting the next character.</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment"> * @return The next character, or eof.</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"> * If the input read position is available, returns that character</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="comment"> * and increments the read pointer, otherwise calls and returns</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="comment"> * @c uflow().</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="comment"> */</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00323"></a><span class="lineno"><a class="line" href="a02452.html#a72d8037e21ad370e3643ff3c865f91f9"> 323</a></span>  <a class="code" href="a02452.html#a72d8037e21ad370e3643ff3c865f91f9">sbumpc</a>()</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  {</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">if</span> (__builtin_expect(this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>() < this-><a class="code" href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b">egptr</a>(), <span class="keyword">true</span>))</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  {</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  __ret = traits_type::to_int_type(*this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>());</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  this-><a class="code" href="a02452.html#a9d130ff289d2617954156378a79dbdc0">gbump</a>(1);</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  }</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  __ret = this-><a class="code" href="a02452.html#a4e0c932f41122eaec83e7008ece5e207">uflow</a>();</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="comment"></span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="comment"> /**</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> <span class="comment"> * @brief Getting the next character.</span></div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"> * @return The next character, or eof.</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"> *</span></div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"> * If the input read position is available, returns that character,</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> * otherwise calls and returns @c underflow(). Does not move the</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment"> * read position after fetching the character.</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="comment"> */</span></div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00345"></a><span class="lineno"><a class="line" href="a02452.html#ac773fb2c87cf938fb6eb89c987f8e04e"> 345</a></span>  <a class="code" href="a02452.html#ac773fb2c87cf938fb6eb89c987f8e04e">sgetc</a>()</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  {</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret;</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">if</span> (__builtin_expect(this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>() < this-><a class="code" href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b">egptr</a>(), <span class="keyword">true</span>))</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  __ret = traits_type::to_int_type(*this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>());</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  __ret = this-><a class="code" href="a02452.html#aab4011ac7751c858f121b887f124529d">underflow</a>();</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="comment"></span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="comment"> /**</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="comment"> * @brief Entry point for xsgetn.</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment"> * @param __s A buffer area.</span></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"> * @param __n A count.</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> <span class="comment"> * Returns xsgetn(__s,__n). The effect is to fill @a __s[0] through</span></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="comment"> * @a __s[__n-1] with characters from the input sequence, if possible.</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment"> */</span></div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00364"></a><span class="lineno"><a class="line" href="a02452.html#a7cfb11ce1eb1a31cf82d7a876c35351b"> 364</a></span>  <a class="code" href="a02452.html#a7cfb11ce1eb1a31cf82d7a876c35351b">sgetn</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02452.html#a5eaa7fbc16e49b8105d6387fcbbfad61">xsgetn</a>(__s, __n); }</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span> </div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// [27.5.2.2.4] putback</span><span class="comment"></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> <span class="comment"> * @brief Pushing characters back into the input stream.</span></div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment"> * @param __c The character to push back.</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment"> * @return The previous character, if possible.</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment"> *</span></div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="comment"> * Similar to sungetc(), but @a __c is pushed onto the stream</span></div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="comment"> * instead of <em>the previous character.</em> If successful,</span></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment"> * the next character fetched from the input stream will be @a</span></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="comment"> * __c.</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment"> */</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00379"></a><span class="lineno"><a class="line" href="a02452.html#ae77ef8a76529317abdc2e6a66336e3ec"> 379</a></span>  <a class="code" href="a02452.html#ae77ef8a76529317abdc2e6a66336e3ec">sputbackc</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a> __c)</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  {</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> __testpos = this-><a class="code" href="a02452.html#aa15c80d916ef8065138eb6bd5b3ae1ef">eback</a>() < this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>();</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">if</span> (__builtin_expect(!__testpos ||</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  !traits_type::eq(__c, this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>()[-1]), <span class="keyword">false</span>))</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  __ret = this-><a class="code" href="a02452.html#a164c1056fe7d6d2cf5335c55541b8b52">pbackfail</a>(traits_type::to_int_type(__c));</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  {</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  this-><a class="code" href="a02452.html#a9d130ff289d2617954156378a79dbdc0">gbump</a>(-1);</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  __ret = traits_type::to_int_type(*this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>());</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="comment"></span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment"> /**</span></div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment"> * @brief Moving backwards in the input stream.</span></div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment"> * @return The previous character, if possible.</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment"> *</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment"> * If a putback position is available, this function decrements</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="comment"> * the input pointer and returns that character. Otherwise,</span></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment"> * calls and returns pbackfail(). The effect is to @a unget</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment"> * the last character @a gotten.</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>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00404"></a><span class="lineno"><a class="line" href="a02452.html#a8d42bd5b22d246f15a8dd0a8614c0e3f"> 404</a></span>  <a class="code" href="a02452.html#a8d42bd5b22d246f15a8dd0a8614c0e3f">sungetc</a>()</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  {</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret;</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (__builtin_expect(this-><a class="code" href="a02452.html#aa15c80d916ef8065138eb6bd5b3ae1ef">eback</a>() < this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>(), <span class="keyword">true</span>))</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  {</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  this-><a class="code" href="a02452.html#a9d130ff289d2617954156378a79dbdc0">gbump</a>(-1);</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  __ret = traits_type::to_int_type(*this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>());</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  }</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  __ret = this-><a class="code" href="a02452.html#a164c1056fe7d6d2cf5335c55541b8b52">pbackfail</a>();</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  }</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// [27.5.2.2.5] put area</span><span class="comment"></span></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment"> /**</span></div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="comment"> * @brief Entry point for all single-character output functions.</span></div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"> * @param __c A character to output.</span></div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment"> * @return @a __c, if possible.</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> *</span></div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="comment"> * One of two public output functions.</span></div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment"> *</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment"> * If a write position is available for the output sequence (i.e.,</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="comment"> * the buffer is not full), stores @a __c in that position, increments</span></div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment"> * the position, and returns @c traits::to_int_type(__c). If a write</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment"> * position is not available, returns @c overflow(__c).</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"> */</span></div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00431"></a><span class="lineno"><a class="line" href="a02452.html#af3504dac5b4cd940dbce97ddc5ed0c25"> 431</a></span>  <a class="code" href="a02452.html#af3504dac5b4cd940dbce97ddc5ed0c25">sputc</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a> __c)</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  {</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordflow">if</span> (__builtin_expect(this-><a class="code" href="a02452.html#af485f3989ebaf74cbfc5f8f578f2e63d">pptr</a>() < this-><a class="code" href="a02452.html#a6b3f675c4d60188e1291eca9fc755458">epptr</a>(), <span class="keyword">true</span>))</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  {</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  *this-><a class="code" href="a02452.html#af485f3989ebaf74cbfc5f8f578f2e63d">pptr</a>() = __c;</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  this-><a class="code" href="a02452.html#abd017296cfc054910ca7de102e6a6998">pbump</a>(1);</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  __ret = traits_type::to_int_type(__c);</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  }</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  __ret = this-><a class="code" href="a02452.html#a4e7aec20e76936e17df779db22877b19">overflow</a>(traits_type::to_int_type(__c));</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</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"> /**</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <span class="comment"> * @brief Entry point for all single-character output functions.</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="comment"> * @param __s A buffer read area.</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <span class="comment"> * @param __n A count.</span></div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="comment"> *</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="comment"> * One of two public output functions.</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="comment"> *</span></div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="comment"> *</span></div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="comment"> * Returns xsputn(__s,__n). The effect is to write @a __s[0] through</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"> * @a __s[__n-1] to the output sequence, if possible.</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> */</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00457"></a><span class="lineno"><a class="line" href="a02452.html#a5d2917460a0283e7e2ff51940704ca95"> 457</a></span>  <a class="code" href="a02452.html#a5d2917460a0283e7e2ff51940704ca95">sputn</a>(<span class="keyword">const</span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  { <span class="keywordflow">return</span> this-><a class="code" href="a02452.html#a23e843afc42e2875d1f2fc945821499a">xsputn</a>(__s, __n); }</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> </div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keyword">protected</span>:<span class="comment"></span></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment"> /**</span></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment"> * @brief Base constructor.</span></div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="comment"> *</span></div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"> * Only called from derived constructors, and sets up all the</span></div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> * buffer data to zero, including the pointers described in the</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"> * basic_streambuf class description. Note that, as a result,</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> * - the class starts with no read nor write positions available,</span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="comment"> * - this is not an error</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"> */</span></div><div class="line"><a name="l00470"></a><span class="lineno"><a class="line" href="a02452.html#af9ead45743a5b28a57d385ac881493e1"> 470</a></span>  <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">basic_streambuf</a>()</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  : <a class="code" href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d">_M_in_beg</a>(0), <a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a>(0), <a class="code" href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4">_M_in_end</a>(0),</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <a class="code" href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61">_M_out_beg</a>(0), <a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a>(0), <a class="code" href="a02452.html#af2973fa34894190ce5885749fa148bbe">_M_out_end</a>(0),</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <a class="code" href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564">_M_buf_locale</a>(<a class="code" href="a05816.html">locale</a>())</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  { }</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="comment">// [27.5.2.3.1] get area access</span><span class="comment"></span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="comment"> * @brief Access to the get area.</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="comment"> *</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="comment"> * These functions are only available to other protected functions,</span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment"> * including derived classes.</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="comment"> *</span></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="comment"> * - eback() returns the beginning pointer for the input sequence</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="comment"> * - gptr() returns the next pointer for the input sequence</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="comment"> * - egptr() returns the end pointer for the input sequence</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"> */</span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*</div><div class="line"><a name="l00489"></a><span class="lineno"><a class="line" href="a02452.html#aa15c80d916ef8065138eb6bd5b3ae1ef"> 489</a></span>  <a class="code" href="a02452.html#aa15c80d916ef8065138eb6bd5b3ae1ef">eback</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d">_M_in_beg</a>; }</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> </div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*</div><div class="line"><a name="l00492"></a><span class="lineno"><a class="line" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f"> 492</a></span>  <a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a>; }</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> </div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*</div><div class="line"><a name="l00495"></a><span class="lineno"><a class="line" href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b"> 495</a></span>  <a class="code" href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b">egptr</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4">_M_in_end</a>; }<span class="comment"></span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="comment"> /**</span></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="comment"> * @brief Moving the read position.</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="comment"> * @param __n The delta by which to move.</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="comment"> *</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="comment"> * This just advances the read position without returning any data.</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="comment"> */</span></div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00505"></a><span class="lineno"><a class="line" href="a02452.html#a9d130ff289d2617954156378a79dbdc0"> 505</a></span>  <a class="code" href="a02452.html#a9d130ff289d2617954156378a79dbdc0">gbump</a>(<span class="keywordtype">int</span> __n) { <a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a> += __n; }</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"></span></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"> /**</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment"> * @brief Setting the three read area pointers.</span></div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment"> * @param __gbeg A pointer.</span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment"> * @param __gnext A pointer.</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="comment"> * @param __gend A pointer.</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="comment"> * @post @a __gbeg == @c eback(), @a __gnext == @c gptr(), and</span></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="comment"> * @a __gend == @c egptr()</span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="comment"> */</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00516"></a><span class="lineno"><a class="line" href="a02452.html#a38c9b562c20b30bf9d21cf0e4dc90356"> 516</a></span>  <a class="code" href="a02452.html#a38c9b562c20b30bf9d21cf0e4dc90356">setg</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __gbeg, <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __gnext, <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __gend)</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>  <a class="code" href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d">_M_in_beg</a> = __gbeg;</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a> = __gnext;</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <a class="code" href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4">_M_in_end</a> = __gend;</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  }</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="comment">// [27.5.2.3.2] put area access</span><span class="comment"></span></div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="comment"> //@{</span></div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="comment"></span><span class="comment"> /**</span></div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="comment"> * @brief Access to the put area.</span></div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="comment"> *</span></div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="comment"> * These functions are only available to other protected functions,</span></div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="comment"> * including derived classes.</span></div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="comment"> *</span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="comment"> * - pbase() returns the beginning pointer for the output sequence</span></div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="comment"> * - pptr() returns the next pointer for the output sequence</span></div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="comment"> * - epptr() returns the end pointer for the output sequence</span></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="comment"> */</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*</div><div class="line"><a name="l00536"></a><span class="lineno"><a class="line" href="a02452.html#a3feb8a3ab9393e19d53e0712af6a27e2"> 536</a></span>  <a class="code" href="a02452.html#a3feb8a3ab9393e19d53e0712af6a27e2">pbase</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61">_M_out_beg</a>; }</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span> </div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*</div><div class="line"><a name="l00539"></a><span class="lineno"><a class="line" href="a02452.html#af485f3989ebaf74cbfc5f8f578f2e63d"> 539</a></span>  <a class="code" href="a02452.html#af485f3989ebaf74cbfc5f8f578f2e63d">pptr</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a>; }</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> </div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*</div><div class="line"><a name="l00542"></a><span class="lineno"><a class="line" href="a02452.html#a6b3f675c4d60188e1291eca9fc755458"> 542</a></span>  <a class="code" href="a02452.html#a6b3f675c4d60188e1291eca9fc755458">epptr</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="a02452.html#af2973fa34894190ce5885749fa148bbe">_M_out_end</a>; }<span class="comment"></span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="comment"> //@}</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment"></span><span class="comment"></span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"> /**</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment"> * @brief Moving the write position.</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> * @param __n The delta by which to move.</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="comment"> *</span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="comment"> * This just advances the write position without returning any data.</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> */</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00552"></a><span class="lineno"><a class="line" href="a02452.html#abd017296cfc054910ca7de102e6a6998"> 552</a></span>  <a class="code" href="a02452.html#abd017296cfc054910ca7de102e6a6998">pbump</a>(<span class="keywordtype">int</span> __n) { <a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a> += __n; }</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="comment"></span></div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="comment"> /**</span></div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <span class="comment"> * @brief Setting the three write area pointers.</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="comment"> * @param __pbeg A pointer.</span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"> * @param __pend A pointer.</span></div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="comment"> * @post @a __pbeg == @c pbase(), @a __pbeg == @c pptr(), and</span></div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="comment"> * @a __pend == @c epptr()</span></div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="comment"> */</span></div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00562"></a><span class="lineno"><a class="line" href="a02452.html#ab0f1b49870f87d288a737cd9f8f9ec00"> 562</a></span>  <a class="code" href="a02452.html#ab0f1b49870f87d288a737cd9f8f9ec00">setp</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __pbeg, <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __pend)</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  {</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <a class="code" href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61">_M_out_beg</a> = <a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a> = __pbeg;</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <a class="code" href="a02452.html#af2973fa34894190ce5885749fa148bbe">_M_out_end</a> = __pend;</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  }</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> </div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="comment">// [27.5.2.4] virtual functions</span></div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="comment">// [27.5.2.4.1] locales</span><span class="comment"></span></div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="comment"> /**</span></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="comment"> * @brief Changes translations.</span></div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"> * @param __loc A new locale.</span></div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="comment"> *</span></div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment"> * Translations done during I/O which depend on the current</span></div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> * locale are changed by this call. The standard adds,</span></div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="comment"> * <em>Between invocations of this function a class derived</span></div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"> * from streambuf can safely cache results of calls to locale</span></div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="comment"> * functions and to members of facets so obtained.</em></span></div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="comment"> *</span></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment"> * @note Base class version does nothing.</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> */</span></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00583"></a><span class="lineno"><a class="line" href="a02452.html#affba476244b59486bd630e26ca375b0f"> 583</a></span>  <a class="code" href="a02452.html#affba476244b59486bd630e26ca375b0f">imbue</a>(<span class="keyword">const</span> <a class="code" href="a05816.html">locale</a>& __loc _IsUnused)</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  { }</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> </div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="comment">// [27.5.2.4.2] buffer management and positioning</span><span class="comment"></span></div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="comment"> /**</span></div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="comment"> * @brief Manipulates the buffer.</span></div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="comment"> *</span></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="comment"> * Each derived class provides its own appropriate behavior. See</span></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="comment"> * the next-to-last paragraph of</span></div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="comment"> * https://gcc.gnu.org/onlinedocs/libstdc++/manual/streambufs.html#io.streambuf.buffering</span></div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment"> * for more on this function.</span></div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"> *</span></div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment"> * @note Base class version does nothing, returns @c this.</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="comment"> */</span></div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html">basic_streambuf<char_type,_Traits></a>*</div><div class="line"><a name="l00598"></a><span class="lineno"><a class="line" href="a02452.html#aad2e731291673229100bde1f24ce828f"> 598</a></span>  <a class="code" href="a02452.html#aad2e731291673229100bde1f24ce828f">setbuf</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>*, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a>)</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  { <span class="keywordflow">return</span> <span class="keyword">this</span>; }</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="comment"></span></div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="comment"> /**</span></div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="comment"> * @brief Alters the stream positions.</span></div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment"> *</span></div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment"> * Each derived class provides its own appropriate behavior.</span></div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="comment"> * @note Base class version does nothing, returns a @c pos_type</span></div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="comment"> * that represents an invalid stream position.</span></div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="comment"> */</span></div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a></div><div class="line"><a name="l00609"></a><span class="lineno"><a class="line" href="a02452.html#ad6d5177e376efdb0dccf62890eebc9b0"> 609</a></span>  <a class="code" href="a02452.html#ad6d5177e376efdb0dccf62890eebc9b0">seekoff</a>(<a class="code" href="a02452.html#ae0d813da6c3d39659299a6e7831ae265">off_type</a>, ios_base::seekdir,</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  ios_base::openmode <span class="comment">/*__mode*/</span> = <a class="code" href="a05796.html#a652e2323949eea3d906e1c81bd8ce8f7">ios_base::in</a> | <a class="code" href="a05796.html#a7187e216e5d16ec820ea1791002f85e0">ios_base::out</a>)</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  { <span class="keywordflow">return</span> <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a>(<a class="code" href="a02452.html#ae0d813da6c3d39659299a6e7831ae265">off_type</a>(-1)); }</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="comment"></span></div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="comment"> /**</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> * @brief Alters the stream positions.</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"> *</span></div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment"> * Each derived class provides its own appropriate behavior.</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"> * @note Base class version does nothing, returns a @c pos_type</span></div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="comment"> * that represents an invalid stream position.</span></div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="comment"> */</span></div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a></div><div class="line"><a name="l00621"></a><span class="lineno"><a class="line" href="a02452.html#a008405d586f640e109c7ab7bf424aa39"> 621</a></span>  <a class="code" href="a02452.html#a008405d586f640e109c7ab7bf424aa39">seekpos</a>(<a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a>,</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  ios_base::openmode <span class="comment">/*__mode*/</span> = <a class="code" href="a05796.html#a652e2323949eea3d906e1c81bd8ce8f7">ios_base::in</a> | <a class="code" href="a05796.html#a7187e216e5d16ec820ea1791002f85e0">ios_base::out</a>)</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  { <span class="keywordflow">return</span> <a class="code" href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a>(<a class="code" href="a02452.html#ae0d813da6c3d39659299a6e7831ae265">off_type</a>(-1)); }</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"></span></div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> /**</span></div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="comment"> * @brief Synchronizes the buffer arrays with the controlled sequences.</span></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="comment"> * @return -1 on failure.</span></div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="comment"> *</span></div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="comment"> * Each derived class provides its own appropriate behavior,</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment"> * including the definition of @a failure.</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment"> * @note Base class version does nothing, returns zero.</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment"> */</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span></div><div class="line"><a name="l00634"></a><span class="lineno"><a class="line" href="a02452.html#a407510ac810a42b173f3bd553959bfb5"> 634</a></span>  <a class="code" href="a02452.html#a407510ac810a42b173f3bd553959bfb5">sync</a>() { <span class="keywordflow">return</span> 0; }</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> </div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">// [27.5.2.4.3] get area</span><span class="comment"></span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="comment"> /**</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="comment"> * @brief Investigating the data available.</span></div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="comment"> * @return An estimate of the number of characters available in the</span></div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="comment"> * input sequence, or -1.</span></div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment"> *</span></div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="comment"> * <em>If it returns a positive value, then successive calls to</span></div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="comment"> * @c underflow() will not return @c traits::eof() until at</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment"> * least that number of characters have been supplied. If @c</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment"> * showmanyc() returns -1, then calls to @c underflow() or @c</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="comment"> * uflow() will fail.</em> [27.5.2.4.3]/1</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="comment"> *</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="comment"> * @note Base class version does nothing, returns zero.</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="comment"> * @note The standard adds that <em>the intention is not only that the</span></div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="comment"> * calls [to underflow or uflow] will not return @c eof() but</span></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment"> * that they will return immediately.</em></span></div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="comment"> * @note The standard adds that <em>the morphemes of @c showmanyc are</span></div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span> <span class="comment"> * @b es-how-many-see, not @b show-manic.</em></span></div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span> <span class="comment"> */</span></div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keyword">virtual</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00656"></a><span class="lineno"><a class="line" href="a02452.html#a85e9299b4d91188c1c0070111604ece8"> 656</a></span>  <a class="code" href="a02452.html#a85e9299b4d91188c1c0070111604ece8">showmanyc</a>() { <span class="keywordflow">return</span> 0; }</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="comment"></span></div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="comment"> /**</span></div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="comment"> * @brief Multiple character extraction.</span></div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="comment"> * @param __s A buffer area.</span></div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment"> * @param __n Maximum number of characters to assign.</span></div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="comment"> * @return The number of characters assigned.</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="comment"> *</span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment"> * Fills @a __s[0] through @a __s[__n-1] with characters from the input</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment"> * sequence, as if by @c sbumpc(). Stops when either @a __n characters</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> * have been copied, or when @c traits::eof() would be copied.</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> *</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"> * It is expected that derived classes provide a more efficient</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> * implementation by overriding this definition.</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="comment"> */</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keyword">virtual</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <a class="code" href="a02452.html#a5eaa7fbc16e49b8105d6387fcbbfad61">xsgetn</a>(<a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span> <span class="comment"></span></div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <span class="comment"> /**</span></div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="comment"> * @brief Fetches more data from the controlled sequence.</span></div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="comment"> * @return The first character from the <em>pending sequence</em>.</span></div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="comment"> *</span></div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="comment"> * Informally, this function is called when the input buffer is</span></div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="comment"> * exhausted (or does not exist, as buffering need not actually be</span></div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="comment"> * done). If a buffer exists, it is @a refilled. In either case, the</span></div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="comment"> * next available character is returned, or @c traits::eof() to</span></div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="comment"> * indicate a null pending sequence.</span></div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="comment"> *</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="comment"> * For a formal definition of the pending sequence, see a good text</span></div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span> <span class="comment"> * such as Langer & Kreft, or [27.5.2.4.3]/7-14.</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="comment"> *</span></div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span> <span class="comment"> * A functioning input streambuf can be created by overriding only</span></div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span> <span class="comment"> * this function (no buffer area will be used). For an example, see</span></div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment"> * https://gcc.gnu.org/onlinedocs/libstdc++/manual/streambufs.html</span></div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment"> *</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="comment"> * @note Base class version does nothing, returns eof().</span></div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="comment"> */</span></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00694"></a><span class="lineno"><a class="line" href="a02452.html#aab4011ac7751c858f121b887f124529d"> 694</a></span>  <a class="code" href="a02452.html#aab4011ac7751c858f121b887f124529d">underflow</a>()</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  { <span class="keywordflow">return</span> traits_type::eof(); }</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span> <span class="comment"></span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span> <span class="comment"> /**</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="comment"> * @brief Fetches more data from the controlled sequence.</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="comment"> * @return The first character from the <em>pending sequence</em>.</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="comment"> *</span></div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span> <span class="comment"> * Informally, this function does the same thing as @c underflow(),</span></div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span> <span class="comment"> * and in fact is required to call that function. It also returns</span></div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span> <span class="comment"> * the new character, like @c underflow() does. However, this</span></div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span> <span class="comment"> * function also moves the read position forward by one.</span></div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span> <span class="comment"> */</span></div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00707"></a><span class="lineno"><a class="line" href="a02452.html#a4e0c932f41122eaec83e7008ece5e207"> 707</a></span>  <a class="code" href="a02452.html#a4e0c932f41122eaec83e7008ece5e207">uflow</a>()</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  {</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __ret = traits_type::eof();</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> __testeof = traits_type::eq_int_type(this-><a class="code" href="a02452.html#aab4011ac7751c858f121b887f124529d">underflow</a>(),</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  __ret);</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="keywordflow">if</span> (!__testeof)</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  {</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  __ret = traits_type::to_int_type(*this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>());</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  this-><a class="code" href="a02452.html#a9d130ff289d2617954156378a79dbdc0">gbump</a>(1);</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  }</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keywordflow">return</span> __ret;</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  }</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> </div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="comment">// [27.5.2.4.4] putback</span><span class="comment"></span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span> <span class="comment"> /**</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="comment"> * @brief Tries to back up the input sequence.</span></div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="comment"> * @param __c The character to be inserted back into the sequence.</span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span> <span class="comment"> * @return eof() on failure, <em>some other value</em> on success</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span> <span class="comment"> * @post The constraints of @c gptr(), @c eback(), and @c pptr()</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span> <span class="comment"> * are the same as for @c underflow().</span></div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span> <span class="comment"> *</span></div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span> <span class="comment"> * @note Base class version does nothing, returns eof().</span></div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="comment"> */</span></div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00731"></a><span class="lineno"><a class="line" href="a02452.html#a164c1056fe7d6d2cf5335c55541b8b52"> 731</a></span>  <a class="code" href="a02452.html#a164c1056fe7d6d2cf5335c55541b8b52">pbackfail</a>(<a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __c _IsUnused = traits_type::eof())</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  { <span class="keywordflow">return</span> traits_type::eof(); }</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span> </div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <span class="comment">// Put area:</span><span class="comment"></span></div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span> <span class="comment"> /**</span></div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span> <span class="comment"> * @brief Multiple character insertion.</span></div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span> <span class="comment"> * @param __s A buffer area.</span></div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span> <span class="comment"> * @param __n Maximum number of characters to write.</span></div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span> <span class="comment"> * @return The number of characters written.</span></div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span> <span class="comment"> *</span></div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span> <span class="comment"> * Writes @a __s[0] through @a __s[__n-1] to the output sequence, as if</span></div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span> <span class="comment"> * by @c sputc(). Stops when either @a n characters have been</span></div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span> <span class="comment"> * copied, or when @c sputc() would return @c traits::eof().</span></div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span> <span class="comment"> *</span></div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span> <span class="comment"> * It is expected that derived classes provide a more efficient</span></div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="comment"> * implementation by overriding this definition.</span></div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span> <span class="comment"> */</span></div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keyword">virtual</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <a class="code" href="a02452.html#a23e843afc42e2875d1f2fc945821499a">xsputn</a>(<span class="keyword">const</span> <a class="code" href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n);</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span> <span class="comment"></span></div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span> <span class="comment"> /**</span></div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span> <span class="comment"> * @brief Consumes data from the buffer; writes to the</span></div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span> <span class="comment"> * controlled sequence.</span></div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span> <span class="comment"> * @param __c An additional character to consume.</span></div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span> <span class="comment"> * @return eof() to indicate failure, something else (usually</span></div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span> <span class="comment"> * @a __c, or not_eof())</span></div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span> <span class="comment"> *</span></div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span> <span class="comment"> * Informally, this function is called when the output buffer</span></div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span> <span class="comment"> * is full (or does not exist, as buffering need not actually</span></div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span> <span class="comment"> * be done). If a buffer exists, it is @a consumed, with</span></div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span> <span class="comment"> * <em>some effect</em> on the controlled sequence.</span></div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span> <span class="comment"> * (Typically, the buffer is written out to the sequence</span></div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span> <span class="comment"> * verbatim.) In either case, the character @a c is also</span></div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="comment"> * written out, if @a __c is not @c eof().</span></div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span> <span class="comment"> *</span></div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="comment"> * For a formal definition of this function, see a good text</span></div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span> <span class="comment"> * such as Langer & Kreft, or [27.5.2.4.5]/3-7.</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span> <span class="comment"> *</span></div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span> <span class="comment"> * A functioning output streambuf can be created by overriding only</span></div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span> <span class="comment"> * this function (no buffer area will be used).</span></div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="comment"> *</span></div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span> <span class="comment"> * @note Base class version does nothing, returns eof().</span></div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span> <span class="comment"> */</span></div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keyword">virtual</span> <a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a></div><div class="line"><a name="l00775"></a><span class="lineno"><a class="line" href="a02452.html#a4e7aec20e76936e17df779db22877b19"> 775</a></span>  <a class="code" href="a02452.html#a4e7aec20e76936e17df779db22877b19">overflow</a>(<a class="code" href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a> __c _IsUnused = traits_type::eof())</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  { <span class="keywordflow">return</span> traits_type::eof(); }</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span> </div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span> <span class="preprocessor">#if _GLIBCXX_USE_DEPRECATED && __cplusplus <= 201402L</span></div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="comment">// Annex D.6 (removed in C++17)</span></div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="keyword">public</span>:<span class="comment"></span></div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="comment"> /**</span></div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span> <span class="comment"> * @brief Tosses a character.</span></div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span> <span class="comment"> *</span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="comment"> * Advances the read pointer, ignoring the character that would have</span></div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="comment"> * been read.</span></div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="comment"> *</span></div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="comment"> * See http://gcc.gnu.org/ml/libstdc++/2002-05/msg00168.html</span></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="comment"> */</span></div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  [[__deprecated__(<span class="stringliteral">"stossc is deprecated, use sbumpc instead"</span>)]]</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  stossc()</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  {</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  <span class="keywordflow">if</span> (this-><a class="code" href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">gptr</a>() < this-><a class="code" href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b">egptr</a>())</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  this-><a class="code" href="a02452.html#a9d130ff289d2617954156378a79dbdc0">gbump</a>(1);</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  this-><a class="code" href="a02452.html#a4e0c932f41122eaec83e7008ece5e207">uflow</a>();</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  }</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span> </div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="comment">// Also used by specializations for char and wchar_t in src.</span></div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  __safe_gbump(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n) { <a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a> += __n; }</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span> </div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  __safe_pbump(<a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n) { <a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a> += __n; }</div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span> </div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span> <span class="preprocessor">#if __cplusplus < 201103L</span></div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">basic_streambuf</a>(<span class="keyword">const</span> <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">basic_streambuf</a>&);</div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span> </div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">basic_streambuf</a>&</div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  operator=(<span class="keyword">const</span> <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">basic_streambuf</a>&);</div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span> </div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  swap(<a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">basic_streambuf</a>& __sb)</div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  {</div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  std::swap(<a class="code" href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d">_M_in_beg</a>, __sb._M_in_beg);</div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  std::swap(<a class="code" href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">_M_in_cur</a>, __sb._M_in_cur);</div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  std::swap(<a class="code" href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4">_M_in_end</a>, __sb._M_in_end);</div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  std::swap(<a class="code" href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61">_M_out_beg</a>, __sb._M_out_beg);</div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  std::swap(<a class="code" href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">_M_out_cur</a>, __sb._M_out_cur);</div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  std::swap(<a class="code" href="a02452.html#af2973fa34894190ce5885749fa148bbe">_M_out_end</a>, __sb._M_out_end);</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  std::swap(<a class="code" href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564">_M_buf_locale</a>, __sb._M_buf_locale);</div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  }</div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  };</div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span> </div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span> <span class="preprocessor">#if __cplusplus >= 201103L</span></div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1">std::basic_streambuf<_CharT, _Traits>::</a></div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <a class="code" href="a02452.html#af9ead45743a5b28a57d385ac881493e1"> basic_streambuf</a>(<span class="keyword">const</span> basic_streambuf&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <a class="code" href="a02452.html">std::basic_streambuf<_CharT, _Traits></a>&</div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  <a class="code" href="a02452.html">std::basic_streambuf<_CharT, _Traits>::</a></div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span> <a class="code" href="a02452.html"> operator=</a>(<span class="keyword">const</span> basic_streambuf&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span> </div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="comment">// Explicit specialization declarations, defined in src/streambuf.cc.</span></div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  __copy_streambufs_eof(basic_streambuf<char>* __sbin,</div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  basic_streambuf<char>* __sbout, <span class="keywordtype">bool</span>& __ineof);</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a></div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  __copy_streambufs_eof(basic_streambuf<wchar_t>* __sbin,</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  basic_streambuf<wchar_t>* __sbout, <span class="keywordtype">bool</span>& __ineof);</div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span> </div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span> <span class="preprocessor">#undef _IsUnused</span></div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span> </div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span> </div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span> <span class="preprocessor">#include <<a class="code" href="a00605.html">bits/streambuf.tcc</a>></span></div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span> </div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span> <span class="preprocessor">#endif </span><span class="comment">/* _GLIBCXX_STREAMBUF */</span><span class="preprocessor"></span></div><div class="ttc" id="a05796_html_a652e2323949eea3d906e1c81bd8ce8f7"><div class="ttname"><a href="a05796.html#a652e2323949eea3d906e1c81bd8ce8f7">std::ios_base::in</a></div><div class="ttdeci">static const openmode in</div><div class="ttdoc">Open for input. Default for ifstream and fstream.</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00443">ios_base.h:443</a></div></div>
<div class="ttc" id="a02452_html_adf0f7b58227c057d018ab6a8b0a123d4"><div class="ttname"><a href="a02452.html#adf0f7b58227c057d018ab6a8b0a123d4">std::basic_streambuf::_M_in_end</a></div><div class="ttdeci">char_type * _M_in_end</div><div class="ttdoc">End of get area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00193">streambuf:193</a></div></div>
<div class="ttc" id="a02452_html_a5d2917460a0283e7e2ff51940704ca95"><div class="ttname"><a href="a02452.html#a5d2917460a0283e7e2ff51940704ca95">std::basic_streambuf::sputn</a></div><div class="ttdeci">streamsize sputn(const char_type *__s, streamsize __n)</div><div class="ttdoc">Entry point for all single-character output functions.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00457">streambuf:457</a></div></div>
<div class="ttc" id="a02452_html_a3138ab00e52afd7a538cdffa25e21937"><div class="ttname"><a href="a02452.html#a3138ab00e52afd7a538cdffa25e21937">std::basic_streambuf::pubseekpos</a></div><div class="ttdeci">pos_type pubseekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)</div><div class="ttdoc">Alters the stream position.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00270">streambuf:270</a></div></div>
<div class="ttc" id="a02452_html_a38c9b562c20b30bf9d21cf0e4dc90356"><div class="ttname"><a href="a02452.html#a38c9b562c20b30bf9d21cf0e4dc90356">std::basic_streambuf::setg</a></div><div class="ttdeci">void setg(char_type *__gbeg, char_type *__gnext, char_type *__gend)</div><div class="ttdoc">Setting the three read area pointers.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00516">streambuf:516</a></div></div>
<div class="ttc" id="a02452_html_a407510ac810a42b173f3bd553959bfb5"><div class="ttname"><a href="a02452.html#a407510ac810a42b173f3bd553959bfb5">std::basic_streambuf::sync</a></div><div class="ttdeci">virtual int sync()</div><div class="ttdoc">Synchronizes the buffer arrays with the controlled sequences.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00634">streambuf:634</a></div></div>
<div class="ttc" id="a02452_html_a8e7a46a08c85184d8b6ea1e5d87b7736"><div class="ttname"><a href="a02452.html#a8e7a46a08c85184d8b6ea1e5d87b7736">std::basic_streambuf::pubimbue</a></div><div class="ttdeci">locale pubimbue(const locale &__loc)</div><div class="ttdoc">Entry point for imbue().</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00216">streambuf:216</a></div></div>
<div class="ttc" id="a02452_html_af9ead45743a5b28a57d385ac881493e1"><div class="ttname"><a href="a02452.html#af9ead45743a5b28a57d385ac881493e1">std::basic_streambuf::basic_streambuf</a></div><div class="ttdeci">basic_streambuf()</div><div class="ttdoc">Base constructor.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00470">streambuf:470</a></div></div>
<div class="ttc" id="a02452_html_ab3220592ca0efc72cf87e58cdc696bd6"><div class="ttname"><a href="a02452.html#ab3220592ca0efc72cf87e58cdc696bd6">std::basic_streambuf::traits_type</a></div><div class="ttdeci">_Traits traits_type</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00132">streambuf:132</a></div></div>
<div class="ttc" id="a02452_html_a7b4e50d872ecb80867eaab9e7897b625"><div class="ttname"><a href="a02452.html#a7b4e50d872ecb80867eaab9e7897b625">std::basic_streambuf::_M_in_cur</a></div><div class="ttdeci">char_type * _M_in_cur</div><div class="ttdoc">Current read area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00192">streambuf:192</a></div></div>
<div class="ttc" id="a00656_html"><div class="ttname"><a href="a00656.html">c++config.h</a></div></div>
<div class="ttc" id="a02452_html_a09508701b27d68740a5473d096437f65"><div class="ttname"><a href="a02452.html#a09508701b27d68740a5473d096437f65">std::basic_streambuf::getloc</a></div><div class="ttdeci">locale getloc() const</div><div class="ttdoc">Locale access.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00233">streambuf:233</a></div></div>
<div class="ttc" id="a02448_html"><div class="ttname"><a href="a02448.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="a02452_html_a1c1565d5b66e703de4d9a8aef4957a8b"><div class="ttname"><a href="a02452.html#a1c1565d5b66e703de4d9a8aef4957a8b">std::basic_streambuf::int_type</a></div><div class="ttdeci">traits_type::int_type int_type</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00133">streambuf:133</a></div></div>
<div class="ttc" id="a02452_html_a924a684fe2a6844d766e25f4051b705c"><div class="ttname"><a href="a02452.html#a924a684fe2a6844d766e25f4051b705c">std::basic_streambuf::in_avail</a></div><div class="ttdeci">streamsize in_avail()</div><div class="ttdoc">Looking ahead into the stream.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00291">streambuf:291</a></div></div>
<div class="ttc" id="a04768_html"><div class="ttname"><a href="a04768.html">std::basic_string</a></div><div class="ttdoc">Managing sequences of characters and character-like objects.</div><div class="ttdef"><b>Definition:</b> <a href="a00290_source.html#l03104">basic_string.h:3104</a></div></div>
<div class="ttc" id="a02452_html_ad6d5177e376efdb0dccf62890eebc9b0"><div class="ttname"><a href="a02452.html#ad6d5177e376efdb0dccf62890eebc9b0">std::basic_streambuf::seekoff</a></div><div class="ttdeci">virtual pos_type seekoff(off_type, ios_base::seekdir, ios_base::openmode=ios_base::in|ios_base::out)</div><div class="ttdoc">Alters the stream positions.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00609">streambuf:609</a></div></div>
<div class="ttc" id="a02452_html_a72d8037e21ad370e3643ff3c865f91f9"><div class="ttname"><a href="a02452.html#a72d8037e21ad370e3643ff3c865f91f9">std::basic_streambuf::sbumpc</a></div><div class="ttdeci">int_type sbumpc()</div><div class="ttdoc">Getting the next character.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00323">streambuf:323</a></div></div>
<div class="ttc" id="a02452_html_ac81d2dad6dac4c185c31937ee10077ce"><div class="ttname"><a href="a02452.html#ac81d2dad6dac4c185c31937ee10077ce">std::basic_streambuf::pubsync</a></div><div class="ttdeci">int pubsync()</div><div class="ttdoc">Calls virtual sync function.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00278">streambuf:278</a></div></div>
<div class="ttc" id="a02452_html_ae77ef8a76529317abdc2e6a66336e3ec"><div class="ttname"><a href="a02452.html#ae77ef8a76529317abdc2e6a66336e3ec">std::basic_streambuf::sputbackc</a></div><div class="ttdeci">int_type sputbackc(char_type __c)</div><div class="ttdoc">Pushing characters back into the input stream.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00379">streambuf:379</a></div></div>
<div class="ttc" id="a02456_html"><div class="ttname"><a href="a02456.html">std::basic_istream</a></div><div class="ttdoc">Template class basic_istream.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00083">iosfwd:83</a></div></div>
<div class="ttc" id="a02452_html_aab4011ac7751c858f121b887f124529d"><div class="ttname"><a href="a02452.html#aab4011ac7751c858f121b887f124529d">std::basic_streambuf::underflow</a></div><div class="ttdeci">virtual int_type underflow()</div><div class="ttdoc">Fetches more data from the controlled sequence.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00694">streambuf:694</a></div></div>
<div class="ttc" id="a02452_html_a83c368ebeed6b39269fd45d38b9a8b53"><div class="ttname"><a href="a02452.html#a83c368ebeed6b39269fd45d38b9a8b53">std::basic_streambuf::_M_out_cur</a></div><div class="ttdeci">char_type * _M_out_cur</div><div class="ttdoc">Current put area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00195">streambuf:195</a></div></div>
<div class="ttc" id="a01088_html"><div class="ttname"><a href="a01088.html">type_traits.h</a></div></div>
<div class="ttc" id="a02452_html_a6b3f675c4d60188e1291eca9fc755458"><div class="ttname"><a href="a02452.html#a6b3f675c4d60188e1291eca9fc755458">std::basic_streambuf::epptr</a></div><div class="ttdeci">char_type * epptr() const</div><div class="ttdoc">Access to the put area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00542">streambuf:542</a></div></div>
<div class="ttc" id="a02488_html"><div class="ttname"><a href="a02488.html">std::ostreambuf_iterator</a></div><div class="ttdoc">Provides output iterator semantics for streambufs.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00128">iosfwd:128</a></div></div>
<div class="ttc" id="a02452_html_affba476244b59486bd630e26ca375b0f"><div class="ttname"><a href="a02452.html#affba476244b59486bd630e26ca375b0f">std::basic_streambuf::imbue</a></div><div class="ttdeci">virtual void imbue(const locale &__loc __attribute__((__unused__)))</div><div class="ttdoc">Changes translations.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00583">streambuf:583</a></div></div>
<div class="ttc" id="a02452_html_a164c1056fe7d6d2cf5335c55541b8b52"><div class="ttname"><a href="a02452.html#a164c1056fe7d6d2cf5335c55541b8b52">std::basic_streambuf::pbackfail</a></div><div class="ttdeci">virtual int_type pbackfail(int_type __c __attribute__((__unused__))=traits_type::eof())</div><div class="ttdoc">Tries to back up the input sequence.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00731">streambuf:731</a></div></div>
<div class="ttc" id="a02452_html_a344bded2a1c24ffcea69a918e7dc6c6f"><div class="ttname"><a href="a02452.html#a344bded2a1c24ffcea69a918e7dc6c6f">std::basic_streambuf::gptr</a></div><div class="ttdeci">char_type * gptr() const</div><div class="ttdoc">Access to the get area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00492">streambuf:492</a></div></div>
<div class="ttc" id="a02452_html_a38ad1721a50a96c7d37d51a3f858a0cf"><div class="ttname"><a href="a02452.html#a38ad1721a50a96c7d37d51a3f858a0cf">std::basic_streambuf::char_type</a></div><div class="ttdeci">_CharT char_type</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00131">streambuf:131</a></div></div>
<div class="ttc" id="a02452_html_a51cd8c6721f963f8bf1c5474c628b70a"><div class="ttname"><a href="a02452.html#a51cd8c6721f963f8bf1c5474c628b70a">std::basic_streambuf::pubsetbuf</a></div><div class="ttdeci">basic_streambuf * pubsetbuf(char_type *__s, streamsize __n)</div><div class="ttdoc">Entry points for derived buffer functions.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00246">streambuf:246</a></div></div>
<div class="ttc" id="a02452_html_af3504dac5b4cd940dbce97ddc5ed0c25"><div class="ttname"><a href="a02452.html#af3504dac5b4cd940dbce97ddc5ed0c25">std::basic_streambuf::sputc</a></div><div class="ttdeci">int_type sputc(char_type __c)</div><div class="ttdoc">Entry point for all single-character output functions.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00431">streambuf:431</a></div></div>
<div class="ttc" id="a02452_html_a5bc758d8b84fa134386d3ab683b880aa"><div class="ttname"><a href="a02452.html#a5bc758d8b84fa134386d3ab683b880aa">std::basic_streambuf::pos_type</a></div><div class="ttdeci">traits_type::pos_type pos_type</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00134">streambuf:134</a></div></div>
<div class="ttc" id="a02452_html_af485f3989ebaf74cbfc5f8f578f2e63d"><div class="ttname"><a href="a02452.html#af485f3989ebaf74cbfc5f8f578f2e63d">std::basic_streambuf::pptr</a></div><div class="ttdeci">char_type * pptr() const</div><div class="ttdoc">Access to the put area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00539">streambuf:539</a></div></div>
<div class="ttc" id="a02452_html_a8d42bd5b22d246f15a8dd0a8614c0e3f"><div class="ttname"><a href="a02452.html#a8d42bd5b22d246f15a8dd0a8614c0e3f">std::basic_streambuf::sungetc</a></div><div class="ttdeci">int_type sungetc()</div><div class="ttdoc">Moving backwards in the input stream.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00404">streambuf:404</a></div></div>
<div class="ttc" id="a02484_html"><div class="ttname"><a href="a02484.html">std::istreambuf_iterator</a></div><div class="ttdoc">Provides input iterator semantics for streambufs.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00125">iosfwd:125</a></div></div>
<div class="ttc" id="a02452_html_a6d281db46069df3043b566f10e5397b2"><div class="ttname"><a href="a02452.html#a6d281db46069df3043b566f10e5397b2">std::basic_streambuf::snextc</a></div><div class="ttdeci">int_type snextc()</div><div class="ttdoc">Getting the next character.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00305">streambuf:305</a></div></div>
<div class="ttc" id="a02452_html_a23e843afc42e2875d1f2fc945821499a"><div class="ttname"><a href="a02452.html#a23e843afc42e2875d1f2fc945821499a">std::basic_streambuf::xsputn</a></div><div class="ttdeci">virtual streamsize xsputn(const char_type *__s, streamsize __n)</div><div class="ttdoc">Multiple character insertion.</div><div class="ttdef"><b>Definition:</b> <a href="a00605_source.html#l00080">streambuf.tcc:80</a></div></div>
<div class="ttc" id="a02452_html_abaa4b2714067328ce4b91a503b17fa73"><div class="ttname"><a href="a02452.html#abaa4b2714067328ce4b91a503b17fa73">std::basic_streambuf::pubseekoff</a></div><div class="ttdeci">pos_type pubseekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __mode=ios_base::in|ios_base::out)</div><div class="ttdoc">Alters the stream position.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00258">streambuf:258</a></div></div>
<div class="ttc" id="a02452_html_abd017296cfc054910ca7de102e6a6998"><div class="ttname"><a href="a02452.html#abd017296cfc054910ca7de102e6a6998">std::basic_streambuf::pbump</a></div><div class="ttdeci">void pbump(int __n)</div><div class="ttdoc">Moving the write position.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00552">streambuf:552</a></div></div>
<div class="ttc" id="a00083_html"><div class="ttname"><a href="a00083.html">iosfwd</a></div></div>
<div class="ttc" id="a00383_html"><div class="ttname"><a href="a00383.html">ios_base.h</a></div></div>
<div class="ttc" id="a02452_html_a85e9299b4d91188c1c0070111604ece8"><div class="ttname"><a href="a02452.html#a85e9299b4d91188c1c0070111604ece8">std::basic_streambuf::showmanyc</a></div><div class="ttdeci">virtual streamsize showmanyc()</div><div class="ttdoc">Investigating the data available.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00656">streambuf:656</a></div></div>
<div class="ttc" id="a02452_html_aef4d5a82b6a51fa750fa43d80b4a8564"><div class="ttname"><a href="a02452.html#aef4d5a82b6a51fa750fa43d80b4a8564">std::basic_streambuf::_M_buf_locale</a></div><div class="ttdeci">locale _M_buf_locale</div><div class="ttdoc">Current locale setting.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00199">streambuf:199</a></div></div>
<div class="ttc" id="a02452_html_a66b958241a34e8b7da6ade8f3434ce61"><div class="ttname"><a href="a02452.html#a66b958241a34e8b7da6ade8f3434ce61">std::basic_streambuf::_M_out_beg</a></div><div class="ttdeci">char_type * _M_out_beg</div><div class="ttdoc">Start of put area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00194">streambuf:194</a></div></div>
<div class="ttc" id="a02452_html_a7cfb11ce1eb1a31cf82d7a876c35351b"><div class="ttname"><a href="a02452.html#a7cfb11ce1eb1a31cf82d7a876c35351b">std::basic_streambuf::sgetn</a></div><div class="ttdeci">streamsize sgetn(char_type *__s, streamsize __n)</div><div class="ttdoc">Entry point for xsgetn.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00364">streambuf:364</a></div></div>
<div class="ttc" id="a01538_html"><div class="ttname"><a href="a01538.html">std</a></div><div class="ttdoc">ISO C++ entities toplevel namespace is std.</div></div>
<div class="ttc" id="a00605_html"><div class="ttname"><a href="a00605.html">streambuf.tcc</a></div></div>
<div class="ttc" id="a01538_html_a01cd5810d682dec840eee4ed6d2170d4"><div class="ttname"><a href="a01538.html#a01cd5810d682dec840eee4ed6d2170d4">std::operator>></a></div><div class="ttdeci">std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, bitset< _Nb > &__x)</div><div class="ttdoc">Global I/O operators for bitsets.</div><div class="ttdef"><b>Definition:</b> <a href="a00047_source.html#l01466">bitset:1466</a></div></div>
<div class="ttc" id="a02452_html_ad02de7bae6f055a7b112aeef35a08d9b"><div class="ttname"><a href="a02452.html#ad02de7bae6f055a7b112aeef35a08d9b">std::basic_streambuf::egptr</a></div><div class="ttdeci">char_type * egptr() const</div><div class="ttdoc">Access to the get area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00495">streambuf:495</a></div></div>
<div class="ttc" id="a01538_html_a3590b5fa48da4e75fbf0054287e3a46b"><div class="ttname"><a href="a01538.html#a3590b5fa48da4e75fbf0054287e3a46b">std::getline</a></div><div class="ttdeci">basic_istream< _CharT, _Traits > & getline(basic_istream< _CharT, _Traits > &__is, basic_string< _CharT, _Traits, _Alloc > &__str, _CharT __delim)</div><div class="ttdoc">Read a line from stream into a string.</div><div class="ttdef"><b>Definition:</b> <a href="a00293_source.html#l01537">basic_string.tcc:1537</a></div></div>
<div class="ttc" id="a02452_html_a08c7afbf0ec4df6f6d8e29a46484197d"><div class="ttname"><a href="a02452.html#a08c7afbf0ec4df6f6d8e29a46484197d">std::basic_streambuf::_M_in_beg</a></div><div class="ttdeci">char_type * _M_in_beg</div><div class="ttdoc">Start of get area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00191">streambuf:191</a></div></div>
<div class="ttc" id="a02452_html_af2973fa34894190ce5885749fa148bbe"><div class="ttname"><a href="a02452.html#af2973fa34894190ce5885749fa148bbe">std::basic_streambuf::_M_out_end</a></div><div class="ttdeci">char_type * _M_out_end</div><div class="ttdoc">End of put area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00196">streambuf:196</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="a02452_html_ae0d813da6c3d39659299a6e7831ae265"><div class="ttname"><a href="a02452.html#ae0d813da6c3d39659299a6e7831ae265">std::basic_streambuf::off_type</a></div><div class="ttdeci">traits_type::off_type off_type</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00135">streambuf:135</a></div></div>
<div class="ttc" id="a00311_html"><div class="ttname"><a href="a00311.html">cpp_type_traits.h</a></div></div>
<div class="ttc" id="a02452_html_a5eaa7fbc16e49b8105d6387fcbbfad61"><div class="ttname"><a href="a02452.html#a5eaa7fbc16e49b8105d6387fcbbfad61">std::basic_streambuf::xsgetn</a></div><div class="ttdeci">virtual streamsize xsgetn(char_type *__s, streamsize __n)</div><div class="ttdoc">Multiple character extraction.</div><div class="ttdef"><b>Definition:</b> <a href="a00605_source.html#l00046">streambuf.tcc:46</a></div></div>
<div class="ttc" id="a05816_html"><div class="ttname"><a href="a05816.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="a02452_html_ab0f1b49870f87d288a737cd9f8f9ec00"><div class="ttname"><a href="a02452.html#ab0f1b49870f87d288a737cd9f8f9ec00">std::basic_streambuf::setp</a></div><div class="ttdeci">void setp(char_type *__pbeg, char_type *__pend)</div><div class="ttdoc">Setting the three write area pointers.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00562">streambuf:562</a></div></div>
<div class="ttc" id="a02452_html_a4e7aec20e76936e17df779db22877b19"><div class="ttname"><a href="a02452.html#a4e7aec20e76936e17df779db22877b19">std::basic_streambuf::overflow</a></div><div class="ttdeci">virtual int_type overflow(int_type __c __attribute__((__unused__))=traits_type::eof())</div><div class="ttdoc">Consumes data from the buffer; writes to the controlled sequence.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00775">streambuf:775</a></div></div>
<div class="ttc" id="a02452_html_aad2e731291673229100bde1f24ce828f"><div class="ttname"><a href="a02452.html#aad2e731291673229100bde1f24ce828f">std::basic_streambuf::setbuf</a></div><div class="ttdeci">virtual basic_streambuf< char_type, _Traits > * setbuf(char_type *, streamsize)</div><div class="ttdoc">Manipulates the buffer.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00598">streambuf:598</a></div></div>
<div class="ttc" id="a02452_html_aa15c80d916ef8065138eb6bd5b3ae1ef"><div class="ttname"><a href="a02452.html#aa15c80d916ef8065138eb6bd5b3ae1ef">std::basic_streambuf::eback</a></div><div class="ttdeci">char_type * eback() const</div><div class="ttdoc">Access to the get area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00489">streambuf:489</a></div></div>
<div class="ttc" id="a01538_html_aeb89c7ad75934cae5b0970b922879fdb"><div class="ttname"><a href="a01538.html#aeb89c7ad75934cae5b0970b922879fdb">std::advance</a></div><div class="ttdeci">_GLIBCXX17_CONSTEXPR void advance(_InputIterator &__i, _Distance __n)</div><div class="ttdoc">A generalization of pointer arithmetic.</div><div class="ttdef"><b>Definition:</b> <a href="a00551_source.html#l00202">stl_iterator_base_funcs.h:202</a></div></div>
<div class="ttc" id="a02452_html"><div class="ttname"><a href="a02452.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="a02452_html_a4e0c932f41122eaec83e7008ece5e207"><div class="ttname"><a href="a02452.html#a4e0c932f41122eaec83e7008ece5e207">std::basic_streambuf::uflow</a></div><div class="ttdeci">virtual int_type uflow()</div><div class="ttdoc">Fetches more data from the controlled sequence.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00707">streambuf:707</a></div></div>
<div class="ttc" id="a02452_html_a008405d586f640e109c7ab7bf424aa39"><div class="ttname"><a href="a02452.html#a008405d586f640e109c7ab7bf424aa39">std::basic_streambuf::seekpos</a></div><div class="ttdeci">virtual pos_type seekpos(pos_type, ios_base::openmode=ios_base::in|ios_base::out)</div><div class="ttdoc">Alters the stream positions.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00621">streambuf:621</a></div></div>
<div class="ttc" id="a02452_html_a9d130ff289d2617954156378a79dbdc0"><div class="ttname"><a href="a02452.html#a9d130ff289d2617954156378a79dbdc0">std::basic_streambuf::gbump</a></div><div class="ttdeci">void gbump(int __n)</div><div class="ttdoc">Moving the read position.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00505">streambuf:505</a></div></div>
<div class="ttc" id="a02452_html_a3feb8a3ab9393e19d53e0712af6a27e2"><div class="ttname"><a href="a02452.html#a3feb8a3ab9393e19d53e0712af6a27e2">std::basic_streambuf::pbase</a></div><div class="ttdeci">char_type * pbase() const</div><div class="ttdoc">Access to the put area.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00536">streambuf:536</a></div></div>
<div class="ttc" id="a02452_html_a20adcc1bccab9fa3678b34e078e59e8c"><div class="ttname"><a href="a02452.html#a20adcc1bccab9fa3678b34e078e59e8c">std::basic_streambuf::__streambuf_type</a></div><div class="ttdeci">basic_streambuf< char_type, traits_type > __streambuf_type</div><div class="ttdoc">This is a non-standard type.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00140">streambuf:140</a></div></div>
<div class="ttc" id="a02452_html_ac773fb2c87cf938fb6eb89c987f8e04e"><div class="ttname"><a href="a02452.html#ac773fb2c87cf938fb6eb89c987f8e04e">std::basic_streambuf::sgetc</a></div><div class="ttdeci">int_type sgetc()</div><div class="ttdoc">Getting the next character.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00345">streambuf:345</a></div></div>
<div class="ttc" id="a02460_html"><div class="ttname"><a href="a02460.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="a02452_html_ae09ce37bf4266e600cdc23c7648b7808"><div class="ttname"><a href="a02452.html#ae09ce37bf4266e600cdc23c7648b7808">std::basic_streambuf::~basic_streambuf</a></div><div class="ttdeci">virtual ~basic_streambuf()</div><div class="ttdoc">Destructor deallocates no buffer space.</div><div class="ttdef"><b>Definition:</b> <a href="a00149_source.html#l00204">streambuf:204</a></div></div>
<div class="ttc" id="a01538_html_a05eef5582eb5de62b76db4916f7adb84"><div class="ttname"><a href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">std::streamsize</a></div><div class="ttdeci">ptrdiff_t streamsize</div><div class="ttdoc">Integral type for I/O operation counts and buffer sizes.</div><div class="ttdef"><b>Definition:</b> <a href="a00440_source.html#l00098">postypes.h:98</a></div></div>
<div class="ttc" id="a05796_html_a7187e216e5d16ec820ea1791002f85e0"><div class="ttname"><a href="a05796.html#a7187e216e5d16ec820ea1791002f85e0">std::ios_base::out</a></div><div class="ttdeci">static const openmode out</div><div class="ttdoc">Open for output. Default for ofstream and fstream.</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00446">ios_base.h:446</a></div></div>
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