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<a href="a01031.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">// Locale support (codecvt) -*- 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) 2000-2018 Free Software Foundation, Inc.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// This library is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">//</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// ISO C++ 14882: 22.2.1.5 Template class codecvt</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">// Written by Benjamin Kosnik <bkoz@redhat.com></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">/** @file ext/codecvt_specializations.h</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * This file is a GNU extension to the Standard C++ Library.</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> */</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#ifndef _EXT_CODECVT_SPECIALIZATIONS_H</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#define _EXT_CODECVT_SPECIALIZATIONS_H 1</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="a00101.html">locale</a>></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <iconv.h></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">namespace </span><a class="code" href="a01544.html">__gnu_cxx</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> _GLIBCXX_BEGIN_NAMESPACE_CXX11</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"></span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> /// Extension to use iconv for dealing with character encodings.</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"></span> <span class="comment">// This includes conversions and comparisons between various character</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// sets. This object encapsulates data that may need to be shared between</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// char_traits, codecvt and ctype.</span></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="a10244.html"> 51</a></span>  <span class="keyword">class </span><a class="code" href="a10244.html">encoding_state</a></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Types: </span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// NB: A conversion descriptor subsumes and enhances the</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// functionality of a simple state type such as mbstate_t.</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">typedef</span> iconv_t descriptor_type;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// Name of internal character set encoding.</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="a04768.html">std::string</a> _M_int_enc;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// Name of external character set encoding.</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="a04768.html">std::string</a> _M_ext_enc;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Conversion descriptor between external encoding to internal encoding.</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  descriptor_type _M_in_desc;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Conversion descriptor between internal encoding to external encoding.</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  descriptor_type _M_out_desc;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// The byte-order marker for the external encoding, if necessary.</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">int</span> _M_ext_bom;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// The byte-order marker for the internal encoding, if necessary.</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">int</span> _M_int_bom;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// Number of external bytes needed to construct one complete</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// character in the internal encoding.</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// NB: -1 indicates variable, or stateful, encodings.</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordtype">int</span> _M_bytes;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">explicit</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="a10244.html">encoding_state</a>() </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  : _M_in_desc(0), _M_out_desc(0), _M_ext_bom(0), _M_int_bom(0), _M_bytes(0)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  { }</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">explicit</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="a10244.html">encoding_state</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* __int, <span class="keyword">const</span> <span class="keywordtype">char</span>* __ext, </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">int</span> __ibom = 0, <span class="keywordtype">int</span> __ebom = 0, <span class="keywordtype">int</span> __bytes = 1)</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  : _M_int_enc(__int), _M_ext_enc(__ext), _M_in_desc(0), _M_out_desc(0), </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  _M_ext_bom(__ebom), _M_int_bom(__ibom), _M_bytes(__bytes)</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  { init(); }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// 21.1.2 traits typedefs</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// p4</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// typedef STATE_T state_type</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// requires: state_type shall meet the requirements of</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// CopyConstructible types (20.1.3)</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// NB: This does not preserve the actual state of the conversion</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// descriptor member, but it does duplicate the encoding</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// information.</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="a10244.html">encoding_state</a>(<span class="keyword">const</span> <a class="code" href="a10244.html">encoding_state</a>& __obj) : _M_in_desc(0), _M_out_desc(0)</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  { construct(__obj); }</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Need assignment operator as well.</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="a10244.html">encoding_state</a>&</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  operator=(<span class="keyword">const</span> <a class="code" href="a10244.html">encoding_state</a>& __obj)</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  construct(__obj);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  ~<a class="code" href="a10244.html">encoding_state</a>()</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  { destroy(); } </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  good() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  { </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">const</span> descriptor_type __err = (iconv_t)(-1);</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">bool</span> __test = _M_in_desc && _M_in_desc != __err; </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  __test &= _M_out_desc && _M_out_desc != __err;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> __test;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">int</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  character_ratio()<span class="keyword"> const</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_bytes; }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">const</span> <a class="code" href="a04768.html">std::string</a></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  internal_encoding()<span class="keyword"> const</span></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_int_enc; }</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">int</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  internal_bom()<span class="keyword"> const</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_int_bom; }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">const</span> <a class="code" href="a04768.html">std::string</a></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  external_encoding()<span class="keyword"> const</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_ext_enc; }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">int</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  external_bom()<span class="keyword"> const</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_ext_bom; }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">const</span> descriptor_type&</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  in_descriptor()<span class="keyword"> const</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_in_desc; }</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">const</span> descriptor_type&</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  out_descriptor()<span class="keyword"> const</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_out_desc; }</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  init()</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">const</span> descriptor_type __err = (iconv_t)(-1);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> __have_encodings = _M_int_enc.<a class="code" href="a04768.html#a676f896c88073521cfac7aab5f3da5af">size</a>() && _M_ext_enc.<a class="code" href="a04768.html#a676f896c88073521cfac7aab5f3da5af">size</a>();</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">if</span> (!_M_in_desc && __have_encodings)</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  _M_in_desc = iconv_open(_M_int_enc.<a class="code" href="a04768.html#a1c644c6d7fe3a686d752a9aecb99da0c">c_str</a>(), _M_ext_enc.<a class="code" href="a04768.html#a1c644c6d7fe3a686d752a9aecb99da0c">c_str</a>());</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (_M_in_desc == __err)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  std::__throw_runtime_error(__N(<span class="stringliteral">"encoding_state::_M_init "</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="stringliteral">"creating iconv input descriptor failed"</span>));</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">if</span> (!_M_out_desc && __have_encodings)</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  {</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  _M_out_desc = iconv_open(_M_ext_enc.<a class="code" href="a04768.html#a1c644c6d7fe3a686d752a9aecb99da0c">c_str</a>(), _M_int_enc.<a class="code" href="a04768.html#a1c644c6d7fe3a686d752a9aecb99da0c">c_str</a>());</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (_M_out_desc == __err)</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  std::__throw_runtime_error(__N(<span class="stringliteral">"encoding_state::_M_init "</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="stringliteral">"creating iconv output descriptor failed"</span>));</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  construct(<span class="keyword">const</span> <a class="code" href="a10244.html">encoding_state</a>& __obj)</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  {</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  destroy();</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  _M_int_enc = __obj._M_int_enc;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  _M_ext_enc = __obj._M_ext_enc;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  _M_ext_bom = __obj._M_ext_bom;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  _M_int_bom = __obj._M_int_bom;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  _M_bytes = __obj._M_bytes;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  init();</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  destroy() <span class="keywordflow">throw</span>()</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  {</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keyword">const</span> descriptor_type __err = (iconv_t)(-1);</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (_M_in_desc && _M_in_desc != __err) </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  {</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  iconv_close(_M_in_desc);</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  _M_in_desc = 0;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">if</span> (_M_out_desc && _M_out_desc != __err) </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  iconv_close(_M_out_desc);</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  _M_out_desc = 0;</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  };</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"></span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"> /// encoding_char_traits</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"></span> <span class="comment">// Custom traits type with encoding_state for the state type, and the</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// associated fpos<encoding_state> for the position type, all other</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// bits equivalent to the required char_traits instantiations.</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT></div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="a10248.html"> 211</a></span>  <span class="keyword">struct </span><a class="code" href="a10248.html">encoding_char_traits</a></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  : <span class="keyword">public</span> <a class="code" href="a05108.html">std::char_traits</a><_CharT></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  {</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">typedef</span> <a class="code" href="a10244.html">encoding_state</a> state_type;</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="a06172.html">std::fpos<state_type></a> <a class="code" href="a06172.html">pos_type</a>;</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  };</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> _GLIBCXX_END_NAMESPACE_CXX11</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </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="keyword">namespace </span><a class="code" href="a01538.html">std</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> {</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">using</span> <a class="code" href="a10244.html">__gnu_cxx::encoding_state</a>;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"></span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> /// codecvt<InternT, _ExternT, encoding_state> specialization.</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"></span> <span class="comment">// This partial specialization takes advantage of iconv to provide</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">// code conversions between a large number of character encodings.</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="a10252.html"> 233</a></span>  <span class="keyword">class </span><a class="code" href="a05136.html">codecvt</a><_InternT, _ExternT, <a class="code" href="a10244.html">encoding_state</a>></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  : <span class="keyword">public</span> <a class="code" href="a05132.html">__codecvt_abstract_base</a><_InternT, _ExternT, encoding_state></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="keyword">public</span>: </div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="comment">// Types:</span></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">typedef</span> codecvt_base::result result;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">typedef</span> _InternT intern_type;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keyword">typedef</span> _ExternT extern_type;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">typedef</span> <a class="code" href="a10244.html">__gnu_cxx::encoding_state</a> <a class="code" href="a10244.html">state_type</a>;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">typedef</span> state_type::descriptor_type descriptor_type;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">// Data Members:</span></div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">static</span> <a class="code" href="a05824.html">locale::id</a> id;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">explicit</span> </div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="a05136.html">codecvt</a>(<span class="keywordtype">size_t</span> __refs = 0)</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  : <a class="code" href="a05132.html">__codecvt_abstract_base<intern_type, extern_type, state_type></a>(__refs)</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  { }</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keyword">explicit</span> </div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="a05136.html">codecvt</a>(<a class="code" href="a10244.html">state_type</a>& __enc, <span class="keywordtype">size_t</span> __refs = 0)</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  : <a class="code" href="a05132.html">__codecvt_abstract_base<intern_type, extern_type, state_type></a>(__refs)</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  { }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keyword">protected</span>:</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keyword">virtual</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  ~<a class="code" href="a05136.html">codecvt</a>() { }</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keyword">virtual</span> result</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <a class="code" href="a05136.html#a5cdde44b6d296efa567c0cc94bca6f08">do_out</a>(<a class="code" href="a10244.html">state_type</a>& __state, <span class="keyword">const</span> intern_type* __from, </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  extern_type* __to, extern_type* __to_end,</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  extern_type*& __to_next) <span class="keyword">const</span>;</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">virtual</span> result</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  do_unshift(<a class="code" href="a10244.html">state_type</a>& __state, extern_type* __to, </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  extern_type* __to_end, extern_type*& __to_next) <span class="keyword">const</span>;</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keyword">virtual</span> result</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  do_in(<a class="code" href="a10244.html">state_type</a>& __state, <span class="keyword">const</span> extern_type* __from, </div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keyword">const</span> extern_type* __from_end, <span class="keyword">const</span> extern_type*& __from_next,</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  intern_type* __to, intern_type* __to_end, </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  intern_type*& __to_next) <span class="keyword">const</span>;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> </div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  do_encoding() <span class="keyword">const</span> <span class="keywordflow">throw</span>();</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> </div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  do_always_noconv() <span class="keyword">const</span> <span class="keywordflow">throw</span>();</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> </div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  do_length(<a class="code" href="a10244.html">state_type</a>&, <span class="keyword">const</span> extern_type* __from, </div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keyword">const</span> extern_type* __end, <span class="keywordtype">size_t</span> __max) <span class="keyword">const</span>;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> </div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  do_max_length() <span class="keyword">const</span> <span class="keywordflow">throw</span>();</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  };</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <a class="code" href="a05824.html">locale::id</a> </div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <a class="code" href="a05136.html">codecvt<_InternT, _ExternT, encoding_state>::id</a>;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">// This adaptor works around the signature problems of the second</span></div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="comment">// argument to iconv(): SUSv2 and others use 'const char**', but glibc 2.2</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="comment">// uses 'char**', which matches the POSIX 1003.1-2001 standard.</span></div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// Using this adaptor, g++ will do the work for us.</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keyword">inline</span> <span class="keywordtype">size_t</span></div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  __iconv_adaptor(<span class="keywordtype">size_t</span>(*__func)(iconv_t, _Tp, <span class="keywordtype">size_t</span>*, <span class="keywordtype">char</span>**, <span class="keywordtype">size_t</span>*),</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  iconv_t __cd, <span class="keywordtype">char</span>** __inbuf, <span class="keywordtype">size_t</span>* __inbytes,</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordtype">char</span>** __outbuf, <span class="keywordtype">size_t</span>* __outbytes)</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  { <span class="keywordflow">return</span> __func(__cd, (_Tp)__inbuf, __inbytes, __outbuf, __outbytes); }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  codecvt_base::result</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <a class="code" href="a05136.html#a5cdde44b6d296efa567c0cc94bca6f08">codecvt<_InternT, _ExternT, encoding_state>::</a></div><div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="a10252.html#ae1283355554c11b6ce2d3dacc9e6cba0"> 309</a></span> <a class="code" href="a05136.html#a5cdde44b6d296efa567c0cc94bca6f08"> do_out</a>(<a class="code" href="a10244.html">state_type</a>& __state, <span class="keyword">const</span> intern_type* __from, </div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  extern_type* __to, extern_type* __to_end,</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  extern_type*& __to_next)<span class="keyword"> const</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  result __ret = codecvt_base::error;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span> (__state.good())</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  {</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keyword">const</span> descriptor_type& __desc = __state.out_descriptor();</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> __fmultiple = <span class="keyword">sizeof</span>(intern_type);</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordtype">size_t</span> __fbytes = __fmultiple * (__from_end - __from);</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> __tmultiple = <span class="keyword">sizeof</span>(extern_type);</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordtype">size_t</span> __tbytes = __tmultiple * (__to_end - __to); </div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  </div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// Argument list for iconv specifies a byte sequence. Thus,</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// all to/from arrays must be brutally casted to char*.</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordtype">char</span>* __cto = reinterpret_cast<char*>(__to);</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordtype">char</span>* __cfrom;</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordtype">size_t</span> __conv;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">// Some encodings need a byte order marker as the first item</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// in the byte stream, to designate endian-ness. The default</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// value for the byte order marker is NULL, so if this is</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// the case, it's not necessary and we can just go on our</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// merry way.</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordtype">int</span> __int_bom = __state.internal_bom();</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keywordflow">if</span> (__int_bom)</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  { </div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordtype">size_t</span> __size = __from_end - __from;</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  intern_type* __cfixed = static_cast<intern_type*></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  (__builtin_alloca(<span class="keyword">sizeof</span>(intern_type) * (__size + 1)));</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  __cfixed[0] = static_cast<intern_type>(__int_bom);</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <a class="code" href="a05108.html">char_traits<intern_type>::copy</a>(__cfixed + 1, __from, __size);</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  __cfrom = reinterpret_cast<char*>(__cfixed);</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  __conv = __iconv_adaptor(iconv, __desc, &__cfrom,</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  &__fbytes, &__cto, &__tbytes); </div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  {</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  intern_type* __cfixed = const_cast<intern_type*>(__from);</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  __cfrom = reinterpret_cast<char*>(__cfixed);</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  __conv = __iconv_adaptor(iconv, __desc, &__cfrom, &__fbytes, </div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  &__cto, &__tbytes); </div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  }</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">if</span> (__conv != <span class="keywordtype">size_t</span>(-1))</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  {</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  __from_next = reinterpret_cast<const intern_type*>(__cfrom);</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  __to_next = reinterpret_cast<extern_type*>(__cto);</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  __ret = codecvt_base::ok;</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">else</span> </div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  {</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">if</span> (__fbytes < __fmultiple * (__from_end - __from))</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  {</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  __from_next = reinterpret_cast<const intern_type*>(__cfrom);</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  __to_next = reinterpret_cast<extern_type*>(__cto);</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  __ret = codecvt_base::partial;</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  __ret = codecvt_base::error;</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  }</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">return</span> __ret; </div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  codecvt_base::result</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="a05136.html">codecvt<_InternT, _ExternT, encoding_state>::</a></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <a class="code" href="a05136.html"> do_unshift</a>(state_type& __state, extern_type* __to, </div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  extern_type* __to_end, extern_type*& __to_next)<span class="keyword"> const</span></div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  result __ret = codecvt_base::error;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">if</span> (__state.good())</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  {</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keyword">const</span> descriptor_type& __desc = __state.in_descriptor();</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> __tmultiple = <span class="keyword">sizeof</span>(intern_type);</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordtype">size_t</span> __tlen = __tmultiple * (__to_end - __to); </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>  <span class="comment">// Argument list for iconv specifies a byte sequence. Thus,</span></div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">// all to/from arrays must be brutally casted to char*.</span></div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">char</span>* __cto = reinterpret_cast<char*>(__to);</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordtype">size_t</span> __conv = __iconv_adaptor(iconv,__desc, 0, 0,</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  &__cto, &__tlen); </div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  </div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">if</span> (__conv != <span class="keywordtype">size_t</span>(-1))</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  {</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  __to_next = reinterpret_cast<extern_type*>(__cto);</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">if</span> (__tlen == __tmultiple * (__to_end - __to))</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  __ret = codecvt_base::noconv;</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (__tlen == 0)</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  __ret = codecvt_base::ok;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  __ret = codecvt_base::partial;</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  }</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">else</span> </div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  __ret = codecvt_base::error;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  }</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">return</span> __ret; </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>  </div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  codecvt_base::result</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  codecvt<_InternT, _ExternT, encoding_state>::</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  do_in(state_type& __state, <span class="keyword">const</span> extern_type* __from, </div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keyword">const</span> extern_type* __from_end, <span class="keyword">const</span> extern_type*& __from_next,</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  intern_type* __to, intern_type* __to_end, </div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  intern_type*& __to_next)<span class="keyword"> const</span></div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="keyword"> </span>{ </div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  result __ret = codecvt_base::error;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">if</span> (__state.good())</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  {</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keyword">const</span> descriptor_type& __desc = __state.in_descriptor();</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> __fmultiple = <span class="keyword">sizeof</span>(extern_type);</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordtype">size_t</span> __flen = __fmultiple * (__from_end - __from);</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> __tmultiple = <span class="keyword">sizeof</span>(intern_type);</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordtype">size_t</span> __tlen = __tmultiple * (__to_end - __to); </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  </div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="comment">// Argument list for iconv specifies a byte sequence. Thus,</span></div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="comment">// all to/from arrays must be brutally casted to char*.</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordtype">char</span>* __cto = reinterpret_cast<char*>(__to);</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keywordtype">char</span>* __cfrom;</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordtype">size_t</span> __conv;</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>  <span class="comment">// Some encodings need a byte order marker as the first item</span></div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="comment">// in the byte stream, to designate endian-ness. The default</span></div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="comment">// value for the byte order marker is NULL, so if this is</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="comment">// the case, it's not necessary and we can just go on our</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="comment">// merry way.</span></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordtype">int</span> __ext_bom = __state.external_bom();</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (__ext_bom)</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  { </div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordtype">size_t</span> __size = __from_end - __from;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  extern_type* __cfixed = static_cast<extern_type*></div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  (__builtin_alloca(<span class="keyword">sizeof</span>(extern_type) * (__size + 1)));</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  __cfixed[0] = static_cast<extern_type>(__ext_bom);</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  char_traits<extern_type>::copy(__cfixed + 1, __from, __size);</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  __cfrom = reinterpret_cast<char*>(__cfixed);</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  __conv = __iconv_adaptor(iconv, __desc, &__cfrom,</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  &__flen, &__cto, &__tlen); </div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  }</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  {</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  extern_type* __cfixed = const_cast<extern_type*>(__from);</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  __cfrom = reinterpret_cast<char*>(__cfixed);</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  __conv = __iconv_adaptor(iconv, __desc, &__cfrom,</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  &__flen, &__cto, &__tlen); </div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  }</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span> </div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  </div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">if</span> (__conv != <span class="keywordtype">size_t</span>(-1))</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  __from_next = reinterpret_cast<const extern_type*>(__cfrom);</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  __to_next = reinterpret_cast<intern_type*>(__cto);</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  __ret = codecvt_base::ok;</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  }</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keywordflow">else</span> </div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  {</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">if</span> (__flen < static_cast<size_t>(__from_end - __from))</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  {</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  __from_next = reinterpret_cast<const extern_type*>(__cfrom);</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  __to_next = reinterpret_cast<intern_type*>(__cto);</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  __ret = codecvt_base::partial;</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  }</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  __ret = codecvt_base::error;</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>  }</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">return</span> __ret; </div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  }</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  </div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordtype">int</span> </div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  codecvt<_InternT, _ExternT, encoding_state>::</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  do_encoding() <span class="keyword">const</span> throw()</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  {</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordtype">int</span> __ret = 0;</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(_ExternT) <= <span class="keyword">sizeof</span>(_InternT))</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  __ret = <span class="keyword">sizeof</span>(_InternT) / <span class="keyword">sizeof</span>(_ExternT);</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keywordflow">return</span> __ret; </div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  }</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>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordtype">bool</span> </div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  codecvt<_InternT, _ExternT, encoding_state>::</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  do_always_noconv() <span class="keyword">const</span> throw()</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  { <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  </div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordtype">int</span> </div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  codecvt<_InternT, _ExternT, encoding_state>::</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  do_length(state_type&, <span class="keyword">const</span> extern_type* __from, </div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">const</span> extern_type* __end, <span class="keywordtype">size_t</span> __max)<span class="keyword"> const</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> <a class="code" href="a01482.html#gad48656de2f272a953455e1fff2532125">std::min</a>(__max, static_cast<size_t>(__end - __from)); }</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> </div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="comment">// _GLIBCXX_RESOLVE_LIB_DEFECTS</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="comment">// 74. Garbled text for codecvt::do_max_length</span></div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordtype">int</span> </div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  codecvt<_InternT, _ExternT, encoding_state>::</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  do_max_length() <span class="keyword">const</span> throw()</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  { <span class="keywordflow">return</span> 1; }</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> </div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> </div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="a00656_html"><div class="ttname"><a href="a00656.html">c++config.h</a></div></div>
<div class="ttc" id="a00101_html"><div class="ttname"><a href="a00101.html">locale</a></div></div>
<div class="ttc" id="a04768_html"><div class="ttname"><a href="a04768.html">std::basic_string< char ></a></div></div>
<div class="ttc" id="a04768_html_a676f896c88073521cfac7aab5f3da5af"><div class="ttname"><a href="a04768.html#a676f896c88073521cfac7aab5f3da5af">std::basic_string::size</a></div><div class="ttdeci">size_type size() const noexcept</div><div class="ttdoc">Returns the number of characters in the string, not including any null-termination.</div><div class="ttdef"><b>Definition:</b> <a href="a00290_source.html#l03835">basic_string.h:3835</a></div></div>
<div class="ttc" id="a01544_html"><div class="ttname"><a href="a01544.html">__gnu_cxx</a></div><div class="ttdoc">GNU extensions for public use.</div></div>
<div class="ttc" id="a05132_html"><div class="ttname"><a href="a05132.html">std::__codecvt_abstract_base</a></div><div class="ttdoc">Common base for codecvt functions.</div><div class="ttdef"><b>Definition:</b> <a href="a00305_source.html#l00068">codecvt.h:68</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="a10248_html"><div class="ttname"><a href="a10248.html">__gnu_cxx::encoding_char_traits</a></div><div class="ttdoc">encoding_char_traits</div><div class="ttdef"><b>Definition:</b> <a href="a01031_source.html#l00211">codecvt_specializations.h:211</a></div></div>
<div class="ttc" id="a05108_html"><div class="ttname"><a href="a05108.html">std::char_traits</a></div><div class="ttdoc">Basis for explicit traits specializations.</div><div class="ttdef"><b>Definition:</b> <a href="a00302_source.html#l00271">char_traits.h:271</a></div></div>
<div class="ttc" id="a06172_html"><div class="ttname"><a href="a06172.html">std::fpos</a></div><div class="ttdoc">Class representing stream positions.</div><div class="ttdef"><b>Definition:</b> <a href="a00440_source.html#l00112">postypes.h:112</a></div></div>
<div class="ttc" id="a01482_html_gad48656de2f272a953455e1fff2532125"><div class="ttname"><a href="a01482.html#gad48656de2f272a953455e1fff2532125">std::min</a></div><div class="ttdeci">_GLIBCXX14_CONSTEXPR const _Tp & min(const _Tp &, const _Tp &)</div><div class="ttdoc">This does what you think it does.</div><div class="ttdef"><b>Definition:</b> <a href="a00530_source.html#l00195">stl_algobase.h:195</a></div></div>
<div class="ttc" id="a10244_html"><div class="ttname"><a href="a10244.html">__gnu_cxx::encoding_state</a></div><div class="ttdoc">Extension to use iconv for dealing with character encodings.</div><div class="ttdef"><b>Definition:</b> <a href="a01031_source.html#l00051">codecvt_specializations.h:51</a></div></div>
<div class="ttc" id="a04768_html_a1c644c6d7fe3a686d752a9aecb99da0c"><div class="ttname"><a href="a04768.html#a1c644c6d7fe3a686d752a9aecb99da0c">std::basic_string::c_str</a></div><div class="ttdeci">const _CharT * c_str() const noexcept</div><div class="ttdoc">Return const pointer to null-terminated contents.</div><div class="ttdef"><b>Definition:</b> <a href="a00290_source.html#l05128">basic_string.h:5128</a></div></div>
<div class="ttc" id="a05136_html"><div class="ttname"><a href="a05136.html">std::codecvt</a></div><div class="ttdoc">Primary class template codecvt.NB: Generic, mostly useless implementation.</div><div class="ttdef"><b>Definition:</b> <a href="a00305_source.html#l00274">codecvt.h:274</a></div></div>
<div class="ttc" id="a05824_html"><div class="ttname"><a href="a05824.html">std::locale::id</a></div><div class="ttdoc">Facet ID class.The ID class provides facets with an index used to identify them. Every facet class mu...</div><div class="ttdef"><b>Definition:</b> <a href="a00392_source.html#l00483">locale_classes.h:483</a></div></div>
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