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<div class="title">codecvt.h</div> </div>
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<a href="a00807.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Locale support (codecvt) -*- C++ -*-</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="comment">// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,</span>
<a name="l00004"></a>00004 <span class="comment">// 2009, 2010, 2011 Free Software Foundation, Inc.</span>
<a name="l00005"></a>00005 <span class="comment">//</span>
<a name="l00006"></a>00006 <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span>
<a name="l00007"></a>00007 <span class="comment">// software; you can redistribute it and/or modify it under the</span>
<a name="l00008"></a>00008 <span class="comment">// terms of the GNU General Public License as published by the</span>
<a name="l00009"></a>00009 <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span>
<a name="l00010"></a>00010 <span class="comment">// any later version.</span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="comment">// This library is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00015"></a>00015 <span class="comment">// GNU General Public License for more details.</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span>
<a name="l00018"></a>00018 <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span>
<a name="l00019"></a>00019 <span class="comment">// 3.1, as published by the Free Software Foundation.</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">// You should have received a copy of the GNU General Public License and</span>
<a name="l00022"></a>00022 <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span>
<a name="l00023"></a>00023 <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span>
<a name="l00024"></a>00024 <span class="comment">// <http://www.gnu.org/licenses/>.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment">/** @file bits/codecvt.h</span>
<a name="l00027"></a>00027 <span class="comment"> * This is an internal header file, included by other library headers.</span>
<a name="l00028"></a>00028 <span class="comment"> * Do not attempt to use it directly. @headername{locale}</span>
<a name="l00029"></a>00029 <span class="comment"> */</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="comment">//</span>
<a name="l00032"></a>00032 <span class="comment">// ISO C++ 14882: 22.2.1.5 Template class codecvt</span>
<a name="l00033"></a>00033 <span class="comment">//</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">// Written by Benjamin Kosnik <bkoz@redhat.com></span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="preprocessor">#ifndef _CODECVT_H</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#define _CODECVT_H 1</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#pragma GCC system_header</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="keyword">namespace </span>std _GLIBCXX_VISIBILITY(default)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 _GLIBCXX_BEGIN_NAMESPACE_VERSION
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment"> /// Empty base class for codecvt facet [22.2.1.5].</span>
<a name="l00047"></a><a class="code" href="a00430.html">00047</a> <span class="comment"></span> <span class="keyword">class </span><a class="code" href="a00430.html" title="Empty base class for codecvt facet [22.2.1.5].">codecvt_base</a>
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 <span class="keyword">public</span>:
<a name="l00050"></a>00050 <span class="keyword">enum</span> result
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 ok,
<a name="l00053"></a>00053 partial,
<a name="l00054"></a>00054 error,
<a name="l00055"></a>00055 noconv
<a name="l00056"></a>00056 };
<a name="l00057"></a>00057 };
<a name="l00058"></a>00058 <span class="comment"></span>
<a name="l00059"></a>00059 <span class="comment"> /**</span>
<a name="l00060"></a>00060 <span class="comment"> * @brief Common base for codecvt functions.</span>
<a name="l00061"></a>00061 <span class="comment"> *</span>
<a name="l00062"></a>00062 <span class="comment"> * This template class provides implementations of the public functions</span>
<a name="l00063"></a>00063 <span class="comment"> * that forward to the protected virtual functions.</span>
<a name="l00064"></a>00064 <span class="comment"> *</span>
<a name="l00065"></a>00065 <span class="comment"> * This template also provides abstract stubs for the protected virtual</span>
<a name="l00066"></a>00066 <span class="comment"> * functions.</span>
<a name="l00067"></a>00067 <span class="comment"> */</span>
<a name="l00068"></a>00068 <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT, <span class="keyword">typename</span> _StateT>
<a name="l00069"></a><a class="code" href="a00002.html">00069</a> <span class="keyword">class </span><a class="code" href="a00002.html" title="Common base for codecvt functions.">__codecvt_abstract_base</a>
<a name="l00070"></a>00070 : <span class="keyword">public</span> <a class="code" href="a00581.html" title="Container class for localization functionality.The locale class is first a class wrapper for C librar...">locale</a>::facet, <span class="keyword">public</span> <a class="code" href="a00430.html" title="Empty base class for codecvt facet [22.2.1.5].">codecvt_base</a>
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="keyword">public</span>:
<a name="l00073"></a>00073 <span class="comment">// Types:</span>
<a name="l00074"></a>00074 <span class="keyword">typedef</span> codecvt_base::result result;
<a name="l00075"></a>00075 <span class="keyword">typedef</span> _InternT intern_type;
<a name="l00076"></a>00076 <span class="keyword">typedef</span> _ExternT extern_type;
<a name="l00077"></a>00077 <span class="keyword">typedef</span> _StateT state_type;
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="comment">// 22.2.1.5.1 codecvt members</span><span class="comment"></span>
<a name="l00080"></a>00080 <span class="comment"> /**</span>
<a name="l00081"></a>00081 <span class="comment"> * @brief Convert from internal to external character set.</span>
<a name="l00082"></a>00082 <span class="comment"> *</span>
<a name="l00083"></a>00083 <span class="comment"> * Converts input string of intern_type to output string of</span>
<a name="l00084"></a>00084 <span class="comment"> * extern_type. This is analogous to wcsrtombs. It does this by</span>
<a name="l00085"></a>00085 <span class="comment"> * calling codecvt::do_out.</span>
<a name="l00086"></a>00086 <span class="comment"> *</span>
<a name="l00087"></a>00087 <span class="comment"> * The source and destination character sets are determined by the</span>
<a name="l00088"></a>00088 <span class="comment"> * facet's locale, internal and external types.</span>
<a name="l00089"></a>00089 <span class="comment"> *</span>
<a name="l00090"></a>00090 <span class="comment"> * The characters in [from,from_end) are converted and written to</span>
<a name="l00091"></a>00091 <span class="comment"> * [to,to_end). from_next and to_next are set to point to the</span>
<a name="l00092"></a>00092 <span class="comment"> * character following the last successfully converted character,</span>
<a name="l00093"></a>00093 <span class="comment"> * respectively. If the result needed no conversion, from_next and</span>
<a name="l00094"></a>00094 <span class="comment"> * to_next are not affected.</span>
<a name="l00095"></a>00095 <span class="comment"> *</span>
<a name="l00096"></a>00096 <span class="comment"> * The @a state argument should be initialized if the input is at the</span>
<a name="l00097"></a>00097 <span class="comment"> * beginning and carried from a previous call if continuing</span>
<a name="l00098"></a>00098 <span class="comment"> * conversion. There are no guarantees about how @a state is used.</span>
<a name="l00099"></a>00099 <span class="comment"> *</span>
<a name="l00100"></a>00100 <span class="comment"> * The result returned is a member of codecvt_base::result. If</span>
<a name="l00101"></a>00101 <span class="comment"> * all the input is converted, returns codecvt_base::ok. If no</span>
<a name="l00102"></a>00102 <span class="comment"> * conversion is necessary, returns codecvt_base::noconv. If</span>
<a name="l00103"></a>00103 <span class="comment"> * the input ends early or there is insufficient space in the</span>
<a name="l00104"></a>00104 <span class="comment"> * output, returns codecvt_base::partial. Otherwise the</span>
<a name="l00105"></a>00105 <span class="comment"> * conversion failed and codecvt_base::error is returned.</span>
<a name="l00106"></a>00106 <span class="comment"> *</span>
<a name="l00107"></a>00107 <span class="comment"> * @param state Persistent conversion state data.</span>
<a name="l00108"></a>00108 <span class="comment"> * @param from Start of input.</span>
<a name="l00109"></a>00109 <span class="comment"> * @param from_end End of input.</span>
<a name="l00110"></a>00110 <span class="comment"> * @param from_next Returns start of unconverted data.</span>
<a name="l00111"></a>00111 <span class="comment"> * @param to Start of output buffer.</span>
<a name="l00112"></a>00112 <span class="comment"> * @param to_end End of output buffer.</span>
<a name="l00113"></a>00113 <span class="comment"> * @param to_next Returns start of unused output area.</span>
<a name="l00114"></a>00114 <span class="comment"> * @return codecvt_base::result.</span>
<a name="l00115"></a>00115 <span class="comment"> */</span>
<a name="l00116"></a>00116 result
<a name="l00117"></a><a class="code" href="a00002.html#a5dba405c1b1ec4d38ce49ace96e844b8">00117</a> <a class="code" href="a00002.html#a5dba405c1b1ec4d38ce49ace96e844b8" title="Convert from internal to external character set.">out</a>(<a class="code" href="a00043.html" title="Extension to use iconv for dealing with character encodings.">state_type</a>& __state, <span class="keyword">const</span> intern_type* __from,
<a name="l00118"></a>00118 <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,
<a name="l00119"></a>00119 extern_type* __to, extern_type* __to_end,
<a name="l00120"></a>00120 extern_type*& __to_next)<span class="keyword"> const</span>
<a name="l00121"></a>00121 <span class="keyword"> </span>{
<a name="l00122"></a>00122 <span class="keywordflow">return</span> this-><a class="code" href="a00002.html#aa969d1e16dd100e737c5d777aa0cdf02" title="Convert from internal to external character set.">do_out</a>(__state, __from, __from_end, __from_next,
<a name="l00123"></a>00123 __to, __to_end, __to_next);
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 <span class="comment"></span>
<a name="l00126"></a>00126 <span class="comment"> /**</span>
<a name="l00127"></a>00127 <span class="comment"> * @brief Reset conversion state.</span>
<a name="l00128"></a>00128 <span class="comment"> *</span>
<a name="l00129"></a>00129 <span class="comment"> * Writes characters to output that would restore @a state to initial</span>
<a name="l00130"></a>00130 <span class="comment"> * conditions. The idea is that if a partial conversion occurs, then</span>
<a name="l00131"></a>00131 <span class="comment"> * the converting the characters written by this function would leave</span>
<a name="l00132"></a>00132 <span class="comment"> * the state in initial conditions, rather than partial conversion</span>
<a name="l00133"></a>00133 <span class="comment"> * state. It does this by calling codecvt::do_unshift().</span>
<a name="l00134"></a>00134 <span class="comment"> *</span>
<a name="l00135"></a>00135 <span class="comment"> * For example, if 4 external characters always converted to 1 internal</span>
<a name="l00136"></a>00136 <span class="comment"> * character, and input to in() had 6 external characters with state</span>
<a name="l00137"></a>00137 <span class="comment"> * saved, this function would write two characters to the output and</span>
<a name="l00138"></a>00138 <span class="comment"> * set the state to initialized conditions.</span>
<a name="l00139"></a>00139 <span class="comment"> *</span>
<a name="l00140"></a>00140 <span class="comment"> * The source and destination character sets are determined by the</span>
<a name="l00141"></a>00141 <span class="comment"> * facet's locale, internal and external types.</span>
<a name="l00142"></a>00142 <span class="comment"> *</span>
<a name="l00143"></a>00143 <span class="comment"> * The result returned is a member of codecvt_base::result. If the</span>
<a name="l00144"></a>00144 <span class="comment"> * state could be reset and data written, returns codecvt_base::ok. If</span>
<a name="l00145"></a>00145 <span class="comment"> * no conversion is necessary, returns codecvt_base::noconv. If the</span>
<a name="l00146"></a>00146 <span class="comment"> * output has insufficient space, returns codecvt_base::partial.</span>
<a name="l00147"></a>00147 <span class="comment"> * Otherwise the reset failed and codecvt_base::error is returned.</span>
<a name="l00148"></a>00148 <span class="comment"> *</span>
<a name="l00149"></a>00149 <span class="comment"> * @param state Persistent conversion state data.</span>
<a name="l00150"></a>00150 <span class="comment"> * @param to Start of output buffer.</span>
<a name="l00151"></a>00151 <span class="comment"> * @param to_end End of output buffer.</span>
<a name="l00152"></a>00152 <span class="comment"> * @param to_next Returns start of unused output area.</span>
<a name="l00153"></a>00153 <span class="comment"> * @return codecvt_base::result.</span>
<a name="l00154"></a>00154 <span class="comment"> */</span>
<a name="l00155"></a>00155 result
<a name="l00156"></a><a class="code" href="a00002.html#a254f4ced9556f8f1b3170a47bc632975">00156</a> <a class="code" href="a00002.html#a254f4ced9556f8f1b3170a47bc632975" title="Reset conversion state.">unshift</a>(<a class="code" href="a00043.html" title="Extension to use iconv for dealing with character encodings.">state_type</a>& __state, extern_type* __to, extern_type* __to_end,
<a name="l00157"></a>00157 extern_type*& __to_next)<span class="keyword"> const</span>
<a name="l00158"></a>00158 <span class="keyword"> </span>{ <span class="keywordflow">return</span> this->do_unshift(__state, __to,__to_end,__to_next); }
<a name="l00159"></a>00159 <span class="comment"></span>
<a name="l00160"></a>00160 <span class="comment"> /**</span>
<a name="l00161"></a>00161 <span class="comment"> * @brief Convert from external to internal character set.</span>
<a name="l00162"></a>00162 <span class="comment"> *</span>
<a name="l00163"></a>00163 <span class="comment"> * Converts input string of extern_type to output string of</span>
<a name="l00164"></a>00164 <span class="comment"> * intern_type. This is analogous to mbsrtowcs. It does this by</span>
<a name="l00165"></a>00165 <span class="comment"> * calling codecvt::do_in.</span>
<a name="l00166"></a>00166 <span class="comment"> *</span>
<a name="l00167"></a>00167 <span class="comment"> * The source and destination character sets are determined by the</span>
<a name="l00168"></a>00168 <span class="comment"> * facet's locale, internal and external types.</span>
<a name="l00169"></a>00169 <span class="comment"> *</span>
<a name="l00170"></a>00170 <span class="comment"> * The characters in [from,from_end) are converted and written to</span>
<a name="l00171"></a>00171 <span class="comment"> * [to,to_end). from_next and to_next are set to point to the</span>
<a name="l00172"></a>00172 <span class="comment"> * character following the last successfully converted character,</span>
<a name="l00173"></a>00173 <span class="comment"> * respectively. If the result needed no conversion, from_next and</span>
<a name="l00174"></a>00174 <span class="comment"> * to_next are not affected.</span>
<a name="l00175"></a>00175 <span class="comment"> *</span>
<a name="l00176"></a>00176 <span class="comment"> * The @a state argument should be initialized if the input is at the</span>
<a name="l00177"></a>00177 <span class="comment"> * beginning and carried from a previous call if continuing</span>
<a name="l00178"></a>00178 <span class="comment"> * conversion. There are no guarantees about how @a state is used.</span>
<a name="l00179"></a>00179 <span class="comment"> *</span>
<a name="l00180"></a>00180 <span class="comment"> * The result returned is a member of codecvt_base::result. If</span>
<a name="l00181"></a>00181 <span class="comment"> * all the input is converted, returns codecvt_base::ok. If no</span>
<a name="l00182"></a>00182 <span class="comment"> * conversion is necessary, returns codecvt_base::noconv. If</span>
<a name="l00183"></a>00183 <span class="comment"> * the input ends early or there is insufficient space in the</span>
<a name="l00184"></a>00184 <span class="comment"> * output, returns codecvt_base::partial. Otherwise the</span>
<a name="l00185"></a>00185 <span class="comment"> * conversion failed and codecvt_base::error is returned.</span>
<a name="l00186"></a>00186 <span class="comment"> *</span>
<a name="l00187"></a>00187 <span class="comment"> * @param state Persistent conversion state data.</span>
<a name="l00188"></a>00188 <span class="comment"> * @param from Start of input.</span>
<a name="l00189"></a>00189 <span class="comment"> * @param from_end End of input.</span>
<a name="l00190"></a>00190 <span class="comment"> * @param from_next Returns start of unconverted data.</span>
<a name="l00191"></a>00191 <span class="comment"> * @param to Start of output buffer.</span>
<a name="l00192"></a>00192 <span class="comment"> * @param to_end End of output buffer.</span>
<a name="l00193"></a>00193 <span class="comment"> * @param to_next Returns start of unused output area.</span>
<a name="l00194"></a>00194 <span class="comment"> * @return codecvt_base::result.</span>
<a name="l00195"></a>00195 <span class="comment"> */</span>
<a name="l00196"></a>00196 result
<a name="l00197"></a><a class="code" href="a00002.html#a18ef5d80a91835a38ed00754c64d414e">00197</a> <a class="code" href="a00002.html#a18ef5d80a91835a38ed00754c64d414e" title="Convert from external to internal character set.">in</a>(<a class="code" href="a00043.html" title="Extension to use iconv for dealing with character encodings.">state_type</a>& __state, <span class="keyword">const</span> extern_type* __from,
<a name="l00198"></a>00198 <span class="keyword">const</span> extern_type* __from_end, <span class="keyword">const</span> extern_type*& __from_next,
<a name="l00199"></a>00199 intern_type* __to, intern_type* __to_end,
<a name="l00200"></a>00200 intern_type*& __to_next)<span class="keyword"> const</span>
<a name="l00201"></a>00201 <span class="keyword"> </span>{
<a name="l00202"></a>00202 <span class="keywordflow">return</span> this->do_in(__state, __from, __from_end, __from_next,
<a name="l00203"></a>00203 __to, __to_end, __to_next);
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordtype">int</span>
<a name="l00207"></a>00207 encoding() <span class="keyword">const</span> throw()
<a name="l00208"></a>00208 { <span class="keywordflow">return</span> this->do_encoding(); }
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordtype">bool</span>
<a name="l00211"></a>00211 always_noconv() <span class="keyword">const</span> throw()
<a name="l00212"></a>00212 { <span class="keywordflow">return</span> this->do_always_noconv(); }
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="keywordtype">int</span>
<a name="l00215"></a>00215 length(state_type& __state, <span class="keyword">const</span> extern_type* __from,
<a name="l00216"></a>00216 <span class="keyword">const</span> extern_type* __end, <span class="keywordtype">size_t</span> __max)<span class="keyword"> const</span>
<a name="l00217"></a>00217 <span class="keyword"> </span>{ <span class="keywordflow">return</span> this->do_length(__state, __from, __end, __max); }
<a name="l00218"></a>00218
<a name="l00219"></a>00219 <span class="keywordtype">int</span>
<a name="l00220"></a>00220 max_length() <span class="keyword">const</span> throw()
<a name="l00221"></a>00221 { <span class="keywordflow">return</span> this->do_max_length(); }
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="keyword">protected</span>:
<a name="l00224"></a>00224 <span class="keyword">explicit</span>
<a name="l00225"></a>00225 __codecvt_abstract_base(<span class="keywordtype">size_t</span> __refs = 0) : locale::<a class="code" href="a00582.html#a04dc2d88fcc6ebd76e37eb11d928eb7a" title="Facet constructor.">facet</a>(__refs) { }
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="keyword">virtual</span>
<a name="l00228"></a>00228 ~__codecvt_abstract_base() { }
<a name="l00229"></a>00229 <span class="comment"></span>
<a name="l00230"></a>00230 <span class="comment"> /**</span>
<a name="l00231"></a>00231 <span class="comment"> * @brief Convert from internal to external character set.</span>
<a name="l00232"></a>00232 <span class="comment"> *</span>
<a name="l00233"></a>00233 <span class="comment"> * Converts input string of intern_type to output string of</span>
<a name="l00234"></a>00234 <span class="comment"> * extern_type. This function is a hook for derived classes to change</span>
<a name="l00235"></a>00235 <span class="comment"> * the value returned. @see out for more information.</span>
<a name="l00236"></a>00236 <span class="comment"> */</span>
<a name="l00237"></a>00237 <span class="keyword">virtual</span> result
<a name="l00238"></a>00238 <a class="code" href="a00002.html#aa969d1e16dd100e737c5d777aa0cdf02" title="Convert from internal to external character set.">do_out</a>(state_type& __state, <span class="keyword">const</span> intern_type* __from,
<a name="l00239"></a>00239 <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,
<a name="l00240"></a>00240 extern_type* __to, extern_type* __to_end,
<a name="l00241"></a>00241 extern_type*& __to_next) <span class="keyword">const</span> = 0;
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="keyword">virtual</span> result
<a name="l00244"></a>00244 do_unshift(state_type& __state, extern_type* __to,
<a name="l00245"></a>00245 extern_type* __to_end, extern_type*& __to_next) <span class="keyword">const</span> = 0;
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keyword">virtual</span> result
<a name="l00248"></a>00248 do_in(state_type& __state, <span class="keyword">const</span> extern_type* __from,
<a name="l00249"></a>00249 <span class="keyword">const</span> extern_type* __from_end, <span class="keyword">const</span> extern_type*& __from_next,
<a name="l00250"></a>00250 intern_type* __to, intern_type* __to_end,
<a name="l00251"></a>00251 intern_type*& __to_next) <span class="keyword">const</span> = 0;
<a name="l00252"></a>00252
<a name="l00253"></a>00253 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00254"></a>00254 do_encoding() <span class="keyword">const</span> throw() = 0;
<a name="l00255"></a>00255
<a name="l00256"></a>00256 virtual <span class="keywordtype">bool</span>
<a name="l00257"></a>00257 do_always_noconv() const throw() = 0;
<a name="l00258"></a>00258
<a name="l00259"></a>00259 virtual <span class="keywordtype">int</span>
<a name="l00260"></a>00260 do_length(state_type&, const extern_type* __from,
<a name="l00261"></a>00261 const extern_type* __end, <span class="keywordtype">size_t</span> __max) const = 0;
<a name="l00262"></a>00262
<a name="l00263"></a>00263 virtual <span class="keywordtype">int</span>
<a name="l00264"></a>00264 do_max_length() const throw() = 0;
<a name="l00265"></a>00265 };
<a name="l00266"></a>00266
<a name="l00267"></a>00267
<a name="l00268"></a>00268 <span class="comment"></span>
<a name="l00269"></a>00269 <span class="comment"> /**</span>
<a name="l00270"></a>00270 <span class="comment"> * @brief Primary class template codecvt.</span>
<a name="l00271"></a>00271 <span class="comment"> * @ingroup locales</span>
<a name="l00272"></a>00272 <span class="comment"> *</span>
<a name="l00273"></a>00273 <span class="comment"> * NB: Generic, mostly useless implementation.</span>
<a name="l00274"></a>00274 <span class="comment"> *</span>
<a name="l00275"></a>00275 <span class="comment"> */</span>
<a name="l00276"></a>00276 template<typename _InternT, typename _ExternT, typename _StateT>
<a name="l00277"></a><a class="code" href="a00426.html">00277</a> class <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>
<a name="l00278"></a>00278 : public <a class="code" href="a00002.html" title="Common base for codecvt functions.">__codecvt_abstract_base</a><_InternT, _ExternT, _StateT>
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 <span class="keyword">public</span>:
<a name="l00281"></a>00281 <span class="comment">// Types:</span>
<a name="l00282"></a>00282 <span class="keyword">typedef</span> codecvt_base::result result;
<a name="l00283"></a>00283 <span class="keyword">typedef</span> _InternT intern_type;
<a name="l00284"></a>00284 <span class="keyword">typedef</span> _ExternT extern_type;
<a name="l00285"></a>00285 <span class="keyword">typedef</span> _StateT state_type;
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keyword">protected</span>:
<a name="l00288"></a>00288 __c_locale _M_c_locale_codecvt;
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="keyword">public</span>:
<a name="l00291"></a>00291 <span class="keyword">static</span> <a class="code" href="a00583.html" title="Facet ID class.The ID class provides facets with an index used to identify them. Every facet class mu...">locale::id</a> id;
<a name="l00292"></a>00292
<a name="l00293"></a>00293 <span class="keyword">explicit</span>
<a name="l00294"></a>00294 <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>(<span class="keywordtype">size_t</span> __refs = 0)
<a name="l00295"></a>00295 : <a class="code" href="a00002.html" title="Common base for codecvt functions.">__codecvt_abstract_base<_InternT, _ExternT, _StateT></a> (__refs) { }
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keyword">explicit</span>
<a name="l00298"></a>00298 <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>(__c_locale __cloc, <span class="keywordtype">size_t</span> __refs = 0);
<a name="l00299"></a>00299
<a name="l00300"></a>00300 <span class="keyword">protected</span>:
<a name="l00301"></a>00301 <span class="keyword">virtual</span>
<a name="l00302"></a>00302 ~<a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>() { }
<a name="l00303"></a>00303
<a name="l00304"></a>00304 <span class="keyword">virtual</span> result
<a name="l00305"></a>00305 <a class="code" href="a00002.html#aa969d1e16dd100e737c5d777aa0cdf02" title="Convert from internal to external character set.">do_out</a>(state_type& __state, <span class="keyword">const</span> intern_type* __from,
<a name="l00306"></a>00306 <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,
<a name="l00307"></a>00307 extern_type* __to, extern_type* __to_end,
<a name="l00308"></a>00308 extern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00309"></a>00309
<a name="l00310"></a>00310 <span class="keyword">virtual</span> result
<a name="l00311"></a>00311 do_unshift(state_type& __state, extern_type* __to,
<a name="l00312"></a>00312 extern_type* __to_end, extern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00313"></a>00313
<a name="l00314"></a>00314 <span class="keyword">virtual</span> result
<a name="l00315"></a>00315 do_in(state_type& __state, <span class="keyword">const</span> extern_type* __from,
<a name="l00316"></a>00316 <span class="keyword">const</span> extern_type* __from_end, <span class="keyword">const</span> extern_type*& __from_next,
<a name="l00317"></a>00317 intern_type* __to, intern_type* __to_end,
<a name="l00318"></a>00318 intern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00321"></a>00321 do_encoding() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00322"></a>00322
<a name="l00323"></a>00323 <span class="keyword">virtual</span> <span class="keywordtype">bool</span>
<a name="l00324"></a>00324 do_always_noconv() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00325"></a>00325
<a name="l00326"></a>00326 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00327"></a>00327 do_length(state_type&, <span class="keyword">const</span> extern_type* __from,
<a name="l00328"></a>00328 <span class="keyword">const</span> extern_type* __end, <span class="keywordtype">size_t</span> __max) <span class="keyword">const</span>;
<a name="l00329"></a>00329
<a name="l00330"></a>00330 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00331"></a>00331 do_max_length() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00332"></a>00332 };
<a name="l00333"></a>00333
<a name="l00334"></a>00334 <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT, <span class="keyword">typename</span> _StateT>
<a name="l00335"></a>00335 <a class="code" href="a00583.html" title="Facet ID class.The ID class provides facets with an index used to identify them. Every facet class mu...">locale::id</a> <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt<_InternT, _ExternT, _StateT>::id</a>;
<a name="l00336"></a>00336 <span class="comment"></span>
<a name="l00337"></a>00337 <span class="comment"> /// class codecvt<char, char, mbstate_t> specialization.</span>
<a name="l00338"></a>00338 <span class="comment"></span> <span class="keyword">template</span><>
<a name="l00339"></a><a class="code" href="a00428.html">00339</a> <span class="keyword">class </span><a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a><char, char, mbstate_t>
<a name="l00340"></a>00340 : <span class="keyword">public</span> <a class="code" href="a00002.html" title="Common base for codecvt functions.">__codecvt_abstract_base</a><char, char, mbstate_t>
<a name="l00341"></a>00341 {
<a name="l00342"></a>00342 <span class="keyword">public</span>:
<a name="l00343"></a>00343 <span class="comment">// Types:</span>
<a name="l00344"></a>00344 <span class="keyword">typedef</span> <span class="keywordtype">char</span> intern_type;
<a name="l00345"></a>00345 <span class="keyword">typedef</span> <span class="keywordtype">char</span> extern_type;
<a name="l00346"></a>00346 <span class="keyword">typedef</span> mbstate_t state_type;
<a name="l00347"></a>00347
<a name="l00348"></a>00348 <span class="keyword">protected</span>:
<a name="l00349"></a>00349 __c_locale _M_c_locale_codecvt;
<a name="l00350"></a>00350
<a name="l00351"></a>00351 <span class="keyword">public</span>:
<a name="l00352"></a>00352 <span class="keyword">static</span> <a class="code" href="a00583.html" title="Facet ID class.The ID class provides facets with an index used to identify them. Every facet class mu...">locale::id</a> id;
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keyword">explicit</span>
<a name="l00355"></a>00355 <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>(<span class="keywordtype">size_t</span> __refs = 0);
<a name="l00356"></a>00356
<a name="l00357"></a>00357 <span class="keyword">explicit</span>
<a name="l00358"></a>00358 <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>(__c_locale __cloc, <span class="keywordtype">size_t</span> __refs = 0);
<a name="l00359"></a>00359
<a name="l00360"></a>00360 <span class="keyword">protected</span>:
<a name="l00361"></a>00361 <span class="keyword">virtual</span>
<a name="l00362"></a>00362 ~<a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>();
<a name="l00363"></a>00363
<a name="l00364"></a>00364 <span class="keyword">virtual</span> result
<a name="l00365"></a>00365 <a class="code" href="a00002.html#aa969d1e16dd100e737c5d777aa0cdf02" title="Convert from internal to external character set.">do_out</a>(state_type& __state, <span class="keyword">const</span> intern_type* __from,
<a name="l00366"></a>00366 <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,
<a name="l00367"></a>00367 extern_type* __to, extern_type* __to_end,
<a name="l00368"></a>00368 extern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00369"></a>00369
<a name="l00370"></a>00370 <span class="keyword">virtual</span> result
<a name="l00371"></a>00371 do_unshift(state_type& __state, extern_type* __to,
<a name="l00372"></a>00372 extern_type* __to_end, extern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <span class="keyword">virtual</span> result
<a name="l00375"></a>00375 do_in(state_type& __state, <span class="keyword">const</span> extern_type* __from,
<a name="l00376"></a>00376 <span class="keyword">const</span> extern_type* __from_end, <span class="keyword">const</span> extern_type*& __from_next,
<a name="l00377"></a>00377 intern_type* __to, intern_type* __to_end,
<a name="l00378"></a>00378 intern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00379"></a>00379
<a name="l00380"></a>00380 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00381"></a>00381 do_encoding() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00382"></a>00382
<a name="l00383"></a>00383 <span class="keyword">virtual</span> <span class="keywordtype">bool</span>
<a name="l00384"></a>00384 do_always_noconv() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00385"></a>00385
<a name="l00386"></a>00386 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00387"></a>00387 do_length(state_type&, <span class="keyword">const</span> extern_type* __from,
<a name="l00388"></a>00388 <span class="keyword">const</span> extern_type* __end, <span class="keywordtype">size_t</span> __max) <span class="keyword">const</span>;
<a name="l00389"></a>00389
<a name="l00390"></a>00390 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00391"></a>00391 do_max_length() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00392"></a>00392 };
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span>
<a name="l00395"></a>00395 <span class="preprocessor"></span><span class="comment"> /// class codecvt<wchar_t, char, mbstate_t> specialization.</span>
<a name="l00396"></a>00396 <span class="comment"></span> <span class="keyword">template</span><>
<a name="l00397"></a><a class="code" href="a00429.html">00397</a> <span class="keyword">class </span><a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a><wchar_t, char, mbstate_t>
<a name="l00398"></a>00398 : <span class="keyword">public</span> <a class="code" href="a00002.html" title="Common base for codecvt functions.">__codecvt_abstract_base</a><wchar_t, char, mbstate_t>
<a name="l00399"></a>00399 {
<a name="l00400"></a>00400 <span class="keyword">public</span>:
<a name="l00401"></a>00401 <span class="comment">// Types:</span>
<a name="l00402"></a>00402 <span class="keyword">typedef</span> <span class="keywordtype">wchar_t</span> intern_type;
<a name="l00403"></a>00403 <span class="keyword">typedef</span> <span class="keywordtype">char</span> extern_type;
<a name="l00404"></a>00404 <span class="keyword">typedef</span> mbstate_t state_type;
<a name="l00405"></a>00405
<a name="l00406"></a>00406 <span class="keyword">protected</span>:
<a name="l00407"></a>00407 __c_locale _M_c_locale_codecvt;
<a name="l00408"></a>00408
<a name="l00409"></a>00409 <span class="keyword">public</span>:
<a name="l00410"></a>00410 <span class="keyword">static</span> <a class="code" href="a00583.html" title="Facet ID class.The ID class provides facets with an index used to identify them. Every facet class mu...">locale::id</a> id;
<a name="l00411"></a>00411
<a name="l00412"></a>00412 <span class="keyword">explicit</span>
<a name="l00413"></a>00413 <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>(<span class="keywordtype">size_t</span> __refs = 0);
<a name="l00414"></a>00414
<a name="l00415"></a>00415 <span class="keyword">explicit</span>
<a name="l00416"></a>00416 <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>(__c_locale __cloc, <span class="keywordtype">size_t</span> __refs = 0);
<a name="l00417"></a>00417
<a name="l00418"></a>00418 <span class="keyword">protected</span>:
<a name="l00419"></a>00419 <span class="keyword">virtual</span>
<a name="l00420"></a>00420 ~<a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a>();
<a name="l00421"></a>00421
<a name="l00422"></a>00422 <span class="keyword">virtual</span> result
<a name="l00423"></a>00423 <a class="code" href="a00002.html#aa969d1e16dd100e737c5d777aa0cdf02" title="Convert from internal to external character set.">do_out</a>(state_type& __state, <span class="keyword">const</span> intern_type* __from,
<a name="l00424"></a>00424 <span class="keyword">const</span> intern_type* __from_end, <span class="keyword">const</span> intern_type*& __from_next,
<a name="l00425"></a>00425 extern_type* __to, extern_type* __to_end,
<a name="l00426"></a>00426 extern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00427"></a>00427
<a name="l00428"></a>00428 <span class="keyword">virtual</span> result
<a name="l00429"></a>00429 do_unshift(state_type& __state,
<a name="l00430"></a>00430 extern_type* __to, extern_type* __to_end,
<a name="l00431"></a>00431 extern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00432"></a>00432
<a name="l00433"></a>00433 <span class="keyword">virtual</span> result
<a name="l00434"></a>00434 do_in(state_type& __state,
<a name="l00435"></a>00435 <span class="keyword">const</span> extern_type* __from, <span class="keyword">const</span> extern_type* __from_end,
<a name="l00436"></a>00436 <span class="keyword">const</span> extern_type*& __from_next,
<a name="l00437"></a>00437 intern_type* __to, intern_type* __to_end,
<a name="l00438"></a>00438 intern_type*& __to_next) <span class="keyword">const</span>;
<a name="l00439"></a>00439
<a name="l00440"></a>00440 <span class="keyword">virtual</span>
<a name="l00441"></a>00441 <span class="keywordtype">int</span> do_encoding() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00442"></a>00442
<a name="l00443"></a>00443 <span class="keyword">virtual</span>
<a name="l00444"></a>00444 <span class="keywordtype">bool</span> do_always_noconv() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00445"></a>00445
<a name="l00446"></a>00446 <span class="keyword">virtual</span>
<a name="l00447"></a>00447 <span class="keywordtype">int</span> do_length(state_type&, <span class="keyword">const</span> extern_type* __from,
<a name="l00448"></a>00448 <span class="keyword">const</span> extern_type* __end, <span class="keywordtype">size_t</span> __max) <span class="keyword">const</span>;
<a name="l00449"></a>00449
<a name="l00450"></a>00450 <span class="keyword">virtual</span> <span class="keywordtype">int</span>
<a name="l00451"></a>00451 do_max_length() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00452"></a>00452 };
<a name="l00453"></a>00453 <span class="preprocessor">#endif //_GLIBCXX_USE_WCHAR_T</span>
<a name="l00454"></a>00454 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00455"></a>00455 <span class="comment"> /// class codecvt_byname [22.2.1.6].</span>
<a name="l00456"></a>00456 <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _InternT, <span class="keyword">typename</span> _ExternT, <span class="keyword">typename</span> _StateT>
<a name="l00457"></a><a class="code" href="a00431.html">00457</a> <span class="keyword">class </span><a class="code" href="a00431.html" title="class codecvt_byname [22.2.1.6].">codecvt_byname</a> : <span class="keyword">public</span> <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt</a><_InternT, _ExternT, _StateT>
<a name="l00458"></a>00458 {
<a name="l00459"></a>00459 <span class="keyword">public</span>:
<a name="l00460"></a>00460 <span class="keyword">explicit</span>
<a name="l00461"></a>00461 <a class="code" href="a00431.html" title="class codecvt_byname [22.2.1.6].">codecvt_byname</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* __s, <span class="keywordtype">size_t</span> __refs = 0)
<a name="l00462"></a>00462 : <a class="code" href="a00426.html" title="Primary class template codecvt.NB: Generic, mostly useless implementation.">codecvt<_InternT, _ExternT, _StateT></a>(__refs)
<a name="l00463"></a>00463 {
<a name="l00464"></a>00464 <span class="keywordflow">if</span> (__builtin_strcmp(__s, <span class="stringliteral">"C"</span>) != 0
<a name="l00465"></a>00465 && __builtin_strcmp(__s, <span class="stringliteral">"POSIX"</span>) != 0)
<a name="l00466"></a>00466 {
<a name="l00467"></a>00467 this->_S_destroy_c_locale(this->_M_c_locale_codecvt);
<a name="l00468"></a>00468 this->_S_create_c_locale(this->_M_c_locale_codecvt, __s);
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470 }
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="keyword">protected</span>:
<a name="l00473"></a>00473 <span class="keyword">virtual</span>
<a name="l00474"></a>00474 ~<a class="code" href="a00431.html" title="class codecvt_byname [22.2.1.6].">codecvt_byname</a>() { }
<a name="l00475"></a>00475 };
<a name="l00476"></a>00476
<a name="l00477"></a>00477 <span class="comment">// Inhibit implicit instantiations for required instantiations,</span>
<a name="l00478"></a>00478 <span class="comment">// which are defined via explicit instantiations elsewhere.</span>
<a name="l00479"></a>00479 <span class="preprocessor">#if _GLIBCXX_EXTERN_TEMPLATE</span>
<a name="l00480"></a>00480 <span class="preprocessor"></span> <span class="keyword">extern</span> <span class="keyword">template</span> <span class="keyword">class </span><a class="code" href="a00431.html" title="class codecvt_byname [22.2.1.6].">codecvt_byname<char, char, mbstate_t></a>;
<a name="l00481"></a>00481
<a name="l00482"></a>00482 <span class="keyword">extern</span> <span class="keyword">template</span>
<a name="l00483"></a>00483 <span class="keyword">const</span> <a class="code" href="a00428.html" title="class codecvt<char, char, mbstate_t> specialization.">codecvt<char, char, mbstate_t></a>&
<a name="l00484"></a>00484 use_facet<codecvt<char, char, mbstate_t> >(<span class="keyword">const</span> <a class="code" href="a00581.html" title="Container class for localization functionality.The locale class is first a class wrapper for C librar...">locale</a>&);
<a name="l00485"></a>00485
<a name="l00486"></a>00486 <span class="keyword">extern</span> <span class="keyword">template</span>
<a name="l00487"></a>00487 <span class="keywordtype">bool</span>
<a name="l00488"></a>00488 has_facet<codecvt<char, char, mbstate_t> >(<span class="keyword">const</span> <a class="code" href="a00581.html" title="Container class for localization functionality.The locale class is first a class wrapper for C librar...">locale</a>&);
<a name="l00489"></a>00489
<a name="l00490"></a>00490 <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span>
<a name="l00491"></a>00491 <span class="preprocessor"></span> <span class="keyword">extern</span> <span class="keyword">template</span> <span class="keyword">class </span><a class="code" href="a00431.html" title="class codecvt_byname [22.2.1.6].">codecvt_byname<wchar_t, char, mbstate_t></a>;
<a name="l00492"></a>00492
<a name="l00493"></a>00493 <span class="keyword">extern</span> <span class="keyword">template</span>
<a name="l00494"></a>00494 <span class="keyword">const</span> <a class="code" href="a00429.html" title="class codecvt<wchar_t, char, mbstate_t> specialization.">codecvt<wchar_t, char, mbstate_t></a>&
<a name="l00495"></a>00495 use_facet<codecvt<wchar_t, char, mbstate_t> >(<span class="keyword">const</span> <a class="code" href="a00581.html" title="Container class for localization functionality.The locale class is first a class wrapper for C librar...">locale</a>&);
<a name="l00496"></a>00496
<a name="l00497"></a>00497 <span class="keyword">extern</span> <span class="keyword">template</span>
<a name="l00498"></a>00498 <span class="keywordtype">bool</span>
<a name="l00499"></a>00499 has_facet<codecvt<wchar_t, char, mbstate_t> >(<span class="keyword">const</span> <a class="code" href="a00581.html" title="Container class for localization functionality.The locale class is first a class wrapper for C librar...">locale</a>&);
<a name="l00500"></a>00500 <span class="preprocessor">#endif</span>
<a name="l00501"></a>00501 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00502"></a>00502 <span class="preprocessor"></span>
<a name="l00503"></a>00503 _GLIBCXX_END_NAMESPACE_VERSION
<a name="l00504"></a>00504 } <span class="comment">// namespace std</span>
<a name="l00505"></a>00505
<a name="l00506"></a>00506 <span class="preprocessor">#endif // _CODECVT_H</span>
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