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<title>&#26631;&#20934;&#24211;&#22836;&#25991;&#20214; &lt;codecvt&gt;</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">&#26631;&#20934;&#24211;&#22836;&#25991;&#20214;</span> &lt;codecvt&gt;</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-header.html">header</a></span></div>
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<p>&#27492;&#22836;&#25991;&#20214;&#26159;<a href="cpp-locale.html">&#26412;&#22320;&#21270;</a>&#24211;&#30340;&#19968;&#37096;&#20998;&#12290;</p>
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<h3><span class="mw-headline" id=".E7.B1.BB">&#31867;</span></h3>
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<div><a href="cpp-locale-codecvt_utf8.html"><span class="t-lines"><span>codecvt_utf8</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark-rev t-deprecated-cxx17">(C++17 &#20013;&#24323;&#29992;)</span></span></span></div>
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<td>&#22312; UTF-8 &#19982; UCS2/UCS4 &#38388;&#36716;&#25442;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;)</span></td>
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<div><a href="cpp-locale-codecvt_utf16.html"><span class="t-lines"><span>codecvt_utf16</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark-rev t-deprecated-cxx17">(C++17 &#20013;&#24323;&#29992;)</span></span></span></div>
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<div><a href="cpp-locale-codecvt_utf8_utf16.html"><span class="t-lines"><span>codecvt_utf8_utf16</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark-rev t-deprecated-cxx17">(C++17 &#20013;&#24323;&#29992;)</span></span></span></div>
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<div><a href="cpp-locale-codecvt_mode.html"><span class="t-lines"><span>codecvt_mode</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark-rev t-deprecated-cxx17">(C++17 &#20013;&#24323;&#29992;)</span></span></span></div>
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<td>&#29992;&#20110;&#25913;&#21464;&#26631;&#20934; codecvt &#21051;&#38754;&#34892;&#20026;&#30340;&#26631;&#31614;<br />
<span class="t-mark">(&#26522;&#20030;)</span></td>
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<h3><span class="mw-headline" id=".E6.A6.82.E8.A6.81">&#27010;&#35201;</span></h3>
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<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw2">enum</span> codecvt_mode <span class="br0">{</span>
consume_header <span class="sy1">=</span> <span class="nu0">4</span>,
generate_header <span class="sy1">=</span> <span class="nu0">2</span>,
little_endian <span class="sy1">=</span> <span class="nu0">1</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Elem, <span class="kw4">unsigned</span> <span class="kw4">long</span> Maxcode <span class="sy1">=</span> <span class="nu12">0x10ffff</span>,
codecvt_mode Mode <span class="sy1">=</span> <span class="br0">(</span>codecvt_mode<span class="br0">)</span><span class="nu0">0</span><span class="sy1">&gt;</span>
<span class="kw1">class</span> codecvt_utf8<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Elem, <span class="kw4">unsigned</span> <span class="kw4">long</span> Maxcode <span class="sy1">=</span> <span class="nu12">0x10ffff</span>,
codecvt_mode Mode <span class="sy1">=</span> <span class="br0">(</span>codecvt_mode<span class="br0">)</span><span class="nu0">0</span><span class="sy1">&gt;</span>
<span class="kw1">class</span> codecvt_utf16<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Elem, <span class="kw4">unsigned</span> <span class="kw4">long</span> Maxcode <span class="sy1">=</span> <span class="nu12">0x10ffff</span>,
codecvt_mode Mode <span class="sy1">=</span> <span class="br0">(</span>codecvt_mode<span class="br0">)</span><span class="nu0">0</span><span class="sy1">&gt;</span>
<span class="kw1">class</span> codecvt_utf8_utf16<span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB_std::codecvt_utf8">&#31867; <span class="t-lc"><a href="cpp-locale-codecvt_utf8.html">std::codecvt_utf8</a></span></span></h4>
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<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Elem, <span class="kw4">unsigned</span> <span class="kw4">long</span> Maxcode <span class="sy1">=</span> <span class="nu12">0x10ffff</span>,
codecvt_mode Mode <span class="sy1">=</span> <span class="br0">(</span>codecvt_mode<span class="br0">)</span><span class="nu0">0</span><span class="sy1">&gt;</span>
<span class="kw1">class</span> codecvt_utf8 <span class="sy4">:</span> <span class="kw1">public</span> codecvt<span class="sy1">&lt;</span>Elem, <span class="kw4">char</span>, mbstate_t<span class="sy1">&gt;</span> <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="kw1">explicit</span> codecvt_utf8<span class="br0">(</span>size_t refs <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
~codecvt_utf8<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB_std::codecvt_utf16">&#31867; <span class="t-lc"><a href="cpp-locale-codecvt_utf16.html">std::codecvt_utf16</a></span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Elem, <span class="kw4">unsigned</span> <span class="kw4">long</span> Maxcode <span class="sy1">=</span> <span class="nu12">0x10ffff</span>,
codecvt_mode Mode <span class="sy1">=</span> <span class="br0">(</span>codecvt_mode<span class="br0">)</span><span class="nu0">0</span><span class="sy1">&gt;</span>
<span class="kw1">class</span> codecvt_utf16 <span class="sy4">:</span> <span class="kw1">public</span> codecvt<span class="sy1">&lt;</span>Elem, <span class="kw4">char</span>, mbstate_t<span class="sy1">&gt;</span> <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="kw1">explicit</span> codecvt_utf16<span class="br0">(</span>size_t refs <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
~codecvt_utf16<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB_std::codecvt_utf8_utf16">&#31867; <span class="t-lc"><a href="cpp-locale-codecvt_utf8_utf16.html">std::codecvt_utf8_utf16</a></span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Elem, <span class="kw4">unsigned</span> <span class="kw4">long</span> Maxcode <span class="sy1">=</span> <span class="nu12">0x10ffff</span>,
codecvt_mode Mode <span class="sy1">=</span> <span class="br0">(</span>codecvt_mode<span class="br0">)</span><span class="nu0">0</span><span class="sy1">&gt;</span>
<span class="kw1">class</span> codecvt_utf8_utf16 <span class="sy4">:</span> <span class="kw1">public</span> codecvt<span class="sy1">&lt;</span>Elem, <span class="kw4">char</span>, mbstate_t<span class="sy1">&gt;</span> <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="kw1">explicit</span> codecvt_utf8_utf16<span class="br0">(</span>size_t refs <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
~codecvt_utf8_utf16<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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