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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="use_facet.html" title="cpp/locale/use facet"><span class="t-lines"><span>use_facet</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="has_facet.html" title="cpp/locale/has facet"><span class="t-lines"><span>has_facet</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Character classification</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isspace.html" title="cpp/locale/isspace"><span class="t-lines"><span>isspace</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isblank.html" title="cpp/locale/isblank"><span class="t-lines"><span>isblank</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="iscntrl.html" title="cpp/locale/iscntrl"><span class="t-lines"><span>iscntrl</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isupper.html" title="cpp/locale/isupper"><span class="t-lines"><span>isupper</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="islower.html" title="cpp/locale/islower"><span class="t-lines"><span>islower</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isalpha.html" title="cpp/locale/isalpha"><span class="t-lines"><span>isalpha</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isdigit.html" title="cpp/locale/isdigit"><span class="t-lines"><span>isdigit</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ispunct.html" title="cpp/locale/ispunct"><span class="t-lines"><span>ispunct</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isxdigit.html" title="cpp/locale/isxdigit"><span class="t-lines"><span>isxdigit</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isalnum.html" title="cpp/locale/isalnum"><span class="t-lines"><span>isalnum</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isprint.html" title="cpp/locale/isprint"><span class="t-lines"><span>isprint</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="isgraph.html" title="cpp/locale/isgraph"><span class="t-lines"><span>isgraph</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Conversions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="toupper.html" title="cpp/locale/toupper"><span class="t-lines"><span>toupper</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="tolower.html" title="cpp/locale/tolower"><span class="t-lines"><span>tolower</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="wstring_convert.html" title="cpp/locale/wstring convert"><span class="t-lines"><span>wstring_convert</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="wbuffer_convert.html" title="cpp/locale/wbuffer convert"><span class="t-lines"><span>wbuffer_convert</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Facet category base classes</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ctype_base.html" title="cpp/locale/ctype base"><span class="t-lines"><span>ctype_base</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt_base.html" title="cpp/locale/codecvt base"><span class="t-lines"><span>codecvt_base</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="messages_base.html" title="cpp/locale/messages base"><span class="t-lines"><span>messages_base</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="time_base.html" title="cpp/locale/time base"><span class="t-lines"><span>time_base</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="money_base.html" title="cpp/locale/money base"><span class="t-lines"><span>money_base</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Facet categories</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ctype.html" title="cpp/locale/ctype"><span class="t-lines"><span>ctype</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ctype_char.html" title="cpp/locale/ctype char"><span class="t-lines"><span>ctype<char></span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>codecvt</span></span></strong></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="collate.html" title="cpp/locale/collate"><span class="t-lines"><span>collate</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="messages.html" title="cpp/locale/messages"><span class="t-lines"><span>messages</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="time_get.html" title="cpp/locale/time get"><span class="t-lines"><span>time_get</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="time_put.html" title="cpp/locale/time put"><span class="t-lines"><span>time_put</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="num_get.html" title="cpp/locale/num get"><span class="t-lines"><span>num_get</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="num_put.html" title="cpp/locale/num put"><span class="t-lines"><span>num_put</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="numpunct.html" title="cpp/locale/numpunct"><span class="t-lines"><span>numpunct</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="money_get.html" title="cpp/locale/money get"><span class="t-lines"><span>money_get</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="money_put.html" title="cpp/locale/money put"><span class="t-lines"><span>money_put</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="moneypunct.html" title="cpp/locale/moneypunct"><span class="t-lines"><span>moneypunct</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Locale-specific facets</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ctype_byname.html" title="cpp/locale/ctype byname"><span class="t-lines"><span>ctype_byname</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt_byname.html" title="cpp/locale/codecvt byname"><span class="t-lines"><span>codecvt_byname</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="messages_byname.html" title="cpp/locale/messages byname"><span class="t-lines"><span>messages_byname</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="collate_byname.html" title="cpp/locale/collate byname"><span class="t-lines"><span>collate_byname</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="time_get_byname.html" title="cpp/locale/time get byname"><span class="t-lines"><span>time_get_byname</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="time_put_byname.html" title="cpp/locale/time put byname"><span class="t-lines"><span>time_put_byname</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="numpunct_byname.html" title="cpp/locale/numpunct byname"><span class="t-lines"><span>numpunct_byname</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="moneypunct_byname.html" title="cpp/locale/moneypunct byname"><span class="t-lines"><span>moneypunct_byname</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Code conversion facets</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt_utf8.html" title="cpp/locale/codecvt utf8"><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></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt_utf16.html" title="cpp/locale/codecvt utf16"><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></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt_utf8_utf16.html" title="cpp/locale/codecvt utf8 utf16"><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></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt_mode.html" title="cpp/locale/codecvt mode"><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></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> C locale</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="setlocale.html" title="cpp/locale/setlocale"><span class="t-lines"><span>setlocale</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="localeconv.html" title="cpp/locale/localeconv"><span class="t-lines"><span>localeconv</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="lconv.html" title="cpp/locale/lconv"><span class="t-lines"><span>lconv</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="LC_categories.html" title="cpp/locale/LC categories"><span class="t-lines"><span>LC_ALL</span><span>LC_COLLATE</span><span>LC_CTYPE</span><span>LC_MONETARY</span><span>LC_NUMERIC</span><span>LC_TIME</span></span></a></div></div></td></tr>
</table></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><strong class="selflink"><tt>std::codecvt</tt></strong><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h2"><td colspan="5"> Member functions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/codecvt.html" title="cpp/locale/codecvt/codecvt"><span class="t-lines"><span>codecvt::codecvt</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/~codecvt.html" title="cpp/locale/codecvt/~codecvt"><span class="t-lines"><span>codecvt::~codecvt</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/out.html" title="cpp/locale/codecvt/out"><span class="t-lines"><span>codecvt::out</span><span>codecvt::do_out</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/in.html" title="cpp/locale/codecvt/in"><span class="t-lines"><span>codecvt::in</span><span>codecvt::do_in</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/unshift.html" title="cpp/locale/codecvt/unshift"><span class="t-lines"><span>codecvt::unshift</span><span>codecvt::do_unshift</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/encoding.html" title="cpp/locale/codecvt/encoding"><span class="t-lines"><span>codecvt::encoding</span><span>codecvt::do_encoding</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/always_noconv.html" title="cpp/locale/codecvt/always noconv"><span class="t-lines"><span>codecvt::always_noconv</span><span>codecvt::do_always_noconv</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/length.html" title="cpp/locale/codecvt/length"><span class="t-lines"><span>codecvt::length</span><span>codecvt::do_length</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="codecvt/max_length.html" title="cpp/locale/codecvt/max length"><span class="t-lines"><span>codecvt::max_length</span><span>codecvt::do_max_length</span></span></a></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>Defined in header <code><a href="../header/locale.html" title="cpp/header/locale"><locale></a></code>
</div></td>
<td></td>
<td></td>
</tr><tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <br />
<p>    <span class="kw1">class</span> InternT, <br />
    <span class="kw1">class</span> ExternT, <br />
    <span class="kw1">class</span> State<br />
</p>
<span class="sy1">></span> <span class="kw1">class</span> codecvt<span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>Class <span class="t-lc"><strong class="selflink">std::codecvt</strong></span> encapsulates conversion of character strings, including wide and multibyte, from one encoding to another. All file I/O operations performed through <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../io/basic_fstream.html"><span class="kw1405">std::<span class="me2">basic_fstream</span></span></a><span class="sy1"><</span>CharT<span class="sy1">></span></span></span> use the <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">codecvt</span><span class="sy1"><</span>CharT, <span class="kw4">char</span>, <a href="../string/multibyte/mbstate_t.html"><span class="kw994">std::<span class="me2">mbstate_t</span></span></a><span class="sy1">></span></span></span> facet of the locale imbued in the stream.
</p>
<div class="t-inheritance-diagram">
<div class="center"><div class="noresize" style="height: 88px; width: 306px; "><map name="ImageMap_1_32067806"><area href="codecvt_base.html" shape="rect" coords="5,4,107,36" alt="cpp/locale/codecvt base" title="cpp/locale/codecvt base"/><area href="locale/facet.html" shape="rect" coords="5,52,107,85" alt="cpp/locale/locale/facet" title="cpp/locale/locale/facet"/></map><img alt="std-codecvt-inheritance.svg" src="../../../../upload.cppreference.com/mwiki/images/f/f1/std-codecvt-inheritance.svg" width="306" height="88" usemap="#ImageMap_1_32067806"/><div style="margin-left: 286px; margin-top: -20px; text-align: left;"><a href="http://en.cppreference.com/w/File:std-codecvt-inheritance.svg" title="About this image"><img alt="About this image" src="../../../mwiki/extensions/ImageMap/desc-20.png" style="border: none;"/></a></div></div></div>
<div style="text-align:center;">
<p><span style="font-size:0.7em; line-height:130%">Inheritance diagram</span>
</p>
</div>
</div>
<p>Four standalone (locale-independent) specializations are provided by the standard library:
</p>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><locale></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">codecvt</span><span class="sy1"><</span><span class="kw4">char</span>, <span class="kw4">char</span>, <a href="../string/multibyte/mbstate_t.html"><span class="kw994">std::<span class="me2">mbstate_t</span></span></a><span class="sy1">></span></span></span>
</td>
<td> identity conversion
</td></tr>
<tr class="t-dsc">
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">codecvt</span><span class="sy1"><</span><span class="kw4">char16_t</span>, <span class="kw4">char</span>, <a href="../string/multibyte/mbstate_t.html"><span class="kw994">std::<span class="me2">mbstate_t</span></span></a><span class="sy1">></span></span></span>
</td>
<td> conversion between UTF-16 and UTF-8 <span class="t-mark-rev t-since-cxx11">(since C++11)</span>
</td></tr>
<tr class="t-dsc">
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">codecvt</span><span class="sy1"><</span><span class="kw4">char32_t</span>, <span class="kw4">char</span>, <a href="../string/multibyte/mbstate_t.html"><span class="kw994">std::<span class="me2">mbstate_t</span></span></a><span class="sy1">></span></span></span>
</td>
<td> conversion between UTF-32 and UTF-8 <span class="t-mark-rev t-since-cxx11">(since C++11)</span>
</td></tr>
<tr class="t-dsc">
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">codecvt</span><span class="sy1"><</span><span class="kw4">wchar_t</span>, <span class="kw4">char</span>, <a href="../string/multibyte/mbstate_t.html"><span class="kw994">std::<span class="me2">mbstate_t</span></span></a><span class="sy1">></span></span></span>
</td>
<td> conversion between the system's native wide and multibyte encodings
</td></tr>
</table>
<p>In addition, every locale object constructed in a C++ program implements its own (locale-specific) versions of these four specializations.
</p>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="codecvt.html#Member_types"><span class="tocnumber">1</span> <span class="toctext">Member types</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="codecvt.html#Member_functions"><span class="tocnumber">2</span> <span class="toctext">Member functions</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="codecvt.html#Member_objects"><span class="tocnumber">3</span> <span class="toctext">Member objects</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="codecvt.html#Protected_member_functions"><span class="tocnumber">4</span> <span class="toctext">Protected member functions</span></a></li>
<li class="toclevel-1"><a href="codecvt.html#Inherited_from_std::codecvt_base"><span class="tocnumber">5</span> <span class="toctext">Inherited from <span>std::</span>codecvt_base</span></a>
<ul>
<li class="toclevel-2 tocsection-5"><a href="codecvt.html#Example"><span class="tocnumber">5.1</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-2 tocsection-6"><a href="codecvt.html#See_also"><span class="tocnumber">5.2</span> <span class="toctext">See also</span></a></li>
</ul>
</li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/codecvt&action=edit&section=1" title="Edit section: Member types">edit</a>]</span> <span class="mw-headline" id="Member_types">Member types</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Member type
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <code>intern_type</code>
</td>
<td> <code>InternT</code>
</td></tr>
<tr class="t-dsc">
<td> <code>extern_type</code>
</td>
<td> <code>ExternT</code>
</td></tr>
<tr class="t-dsc">
<td> <code>state_type</code>
</td>
<td> <code>State</code>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/codecvt&action=edit&section=2" title="Edit section: Member functions">edit</a>]</span> <span class="mw-headline" id="Member_functions">Member functions</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div t-dsc-member-nobold-div"><div><a href="codecvt/codecvt.html" title="cpp/locale/codecvt/codecvt"> <span class="t-lines"><span>(constructor)</span></span></a></div></div>
</td>
<td> constructs a new codecvt facet <br /> <span class="t-mark">(public member function)</span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div t-dsc-member-nobold-div"><div><a href="codecvt/~codecvt.html" title="cpp/locale/codecvt/~codecvt"> <span class="t-lines"><span>(destructor)</span></span></a></div></div>
</td>
<td> destructs a codecvt facet <br /> <span class="t-mark">(protected member function)</span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/out.html" title="cpp/locale/codecvt/out"> <span class="t-lines"><span>out</span></span></a></div></div>
</td>
<td> invokes <code>do_out</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_out&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/in.html" title="cpp/locale/codecvt/in"> <span class="t-lines"><span>in</span></span></a></div></div>
</td>
<td> invokes <code>do_in</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_in&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/unshift.html" title="cpp/locale/codecvt/unshift"> <span class="t-lines"><span>unshift</span></span></a></div></div>
</td>
<td> invokes <code>do_unshift</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_unshift&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/encoding.html" title="cpp/locale/codecvt/encoding"> <span class="t-lines"><span>encoding</span></span></a></div></div>
</td>
<td> invokes <code>do_encoding</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_encoding&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/always_noconv.html" title="cpp/locale/codecvt/always noconv"> <span class="t-lines"><span>always_noconv</span></span></a></div></div>
</td>
<td> invokes <code>do_always_noconv</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_always_noconv&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/length.html" title="cpp/locale/codecvt/length"> <span class="t-lines"><span>length</span></span></a></div></div>
</td>
<td> invokes <code>do_length</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_length&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/max_length.html" title="cpp/locale/codecvt/max length"> <span class="t-lines"><span>max_length</span></span></a></div></div>
</td>
<td> invokes <code>do_max_length</code> <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_max_length&action=edit">[edit]</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/codecvt&action=edit&section=3" title="Edit section: Member objects">edit</a>]</span> <span class="mw-headline" id="Member_objects">Member objects</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Member name
</td>
<td> Type
</td></tr>
<tr class="t-dsc">
<td> <code>id</code> <span class="t-mark">(static)</span>
</td>
<td> <span class="t-lc"><a href="locale/id.html" title="cpp/locale/locale/id">std::locale::id</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/codecvt&action=edit&section=4" title="Edit section: Protected member functions">edit</a>]</span> <span class="mw-headline" id="Protected_member_functions">Protected member functions</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/out.html" title="cpp/locale/codecvt/out"> <span class="t-lines"><span>do_out</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> converts a string from internT to externT, such as when writing to file <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_out&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/in.html" title="cpp/locale/codecvt/in"> <span class="t-lines"><span>do_in</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> converts a string from externT to internT, such as when reading from file <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_in&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/unshift.html" title="cpp/locale/codecvt/unshift"> <span class="t-lines"><span>do_unshift</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> generates the termination character sequence of externT characters for incomplete conversion <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_unshift&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/encoding.html" title="cpp/locale/codecvt/encoding"> <span class="t-lines"><span>do_encoding</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> returns the number of externT characters necessary to produce one internT character, if constant <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_encoding&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/always_noconv.html" title="cpp/locale/codecvt/always noconv"> <span class="t-lines"><span>do_always_noconv</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> tests if the facet encodes an identity conversion for all valid argument values <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_always_noconv&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/length.html" title="cpp/locale/codecvt/length"> <span class="t-lines"><span>do_length</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> calculates the length of the externT string that would be consumed by conversion into given internT buffer <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_length&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt/max_length.html" title="cpp/locale/codecvt/max length"> <span class="t-lines"><span>do_max_length</span></span></a></div><div><span class="t-lines"><span><span class="t-cmark">[virtual]</span></span></span></div></div>
</td>
<td> returns the maximum number of externT characters that could be converted into a single internT character <br /> <span class="t-mark">(virtual protected member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/codecvt/dsc_do_max_length&action=edit">[edit]</a></span>
</td></tr>
</table>
<div class="t-inherited">
<h2> <span class="mw-headline" id="Inherited_from_std::codecvt_base">Inherited from <a href="codecvt_base.html" title="cpp/locale/codecvt base"> <span style="font-size:0.7em; line-height:130%">std::</span>codecvt_base</a> </span></h2>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Member type
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">enum</span> result <span class="br0">{</span> ok, partial, error, noconv <span class="br0">}</span><span class="sy4">;</span></span></span>
</td>
<td> Unscoped enumeration type
</td></tr>
</table>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Enumeration constant
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <code>ok</code>
</td>
<td> conversion was completed with no error
</td></tr>
<tr class="t-dsc">
<td> <code>partial</code>
</td>
<td> not all source characters were converted
</td></tr>
<tr class="t-dsc">
<td> <code>error</code>
</td>
<td> encountered an invalid character
</td></tr>
<tr class="t-dsc">
<td> <code>noconv</code>
</td>
<td> no conversion required, input and output types are the same
</td></tr>
</table>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/codecvt&action=edit&section=5" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><p> The following examples reads a UTF-8 file using a locale which implements UTF-8 conversion in codecvt<wchar_t, char, mbstate_t> and converts a UTF-8 string to UTF-16 using one of the standard specializations of std::codecvt
</p><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include <iostream></span>
<span class="co2">#include <fstream></span>
<span class="co2">#include <string></span>
<span class="co2">#include <locale></span>
<span class="co2">#include <iomanip></span>
<span class="co2">#include <string></span>
<span class="co2">#include <codecvt></span>
 
<span class="co1">// utility wrapper to adapt locale-bound facets for wstring/wbuffer convert</span>
<span class="kw1">template</span><span class="sy1"><</span><span class="kw1">class</span> Facet<span class="sy1">></span>
<span class="kw1">struct</span> deletable_facet <span class="sy4">:</span> Facet
<span class="br0">{</span>
<span class="kw1">template</span><span class="sy1"><</span><span class="kw1">class</span> ...<span class="me1">Args</span><span class="sy1">></span>
deletable_facet<span class="br0">(</span>Args<span class="sy3">&&</span> ...<span class="me1">args</span><span class="br0">)</span> <span class="sy4">:</span> Facet<span class="br0">(</span><a href="../utility/forward.html"><span class="kw913">std::<span class="me2">forward</span></span></a><span class="sy1"><</span>Args<span class="sy1">></span><span class="br0">(</span>args<span class="br0">)</span>...<span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span>
~deletable_facet<span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span>
<span class="br0">}</span><span class="sy4">;</span>
 
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="co1">// UTF-8 narrow multibyte encoding</span>
<a href="../string/basic_string.html"><span class="kw1045">std::<span class="me2">string</span></span></a> data <span class="sy1">=</span> u8<span class="st0">"z<span class="es3">\u00df</span><span class="es3">\u6c34</span><span class="es4">\U0001f34c</span>"</span><span class="sy4">;</span>
<span class="co1">// or u8"zß水🍌"</span>
<span class="co1">// or "\x7a\xc3\x9f\xe6\xb0\xb4\xf0\x9f\x8d\x8c";</span>
 
<a href="../io/basic_ofstream.html"><span class="kw1418">std::<span class="me2">ofstream</span></span></a><span class="br0">(</span><span class="st0">"text.txt"</span><span class="br0">)</span> <span class="sy1"><<</span> data<span class="sy4">;</span>
 
<span class="co1">// using system-supplied locale's codecvt facet</span>
<a href="../io/basic_ifstream.html"><span class="kw1431">std::<span class="me2">wifstream</span></span></a> fin<span class="br0">(</span><span class="st0">"text.txt"</span><span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// reading from wifstream willl use codecvt<wchar_t, char, mbstate_t></span>
<span class="co1">// this locale's codecvt converts UTF-8 to UCS4 (on systems such as Linux)</span>
fin.<span class="me1">imbue</span><span class="br0">(</span><a href="locale.html"><span class="kw1574">std::<span class="me2">locale</span></span></a><span class="br0">(</span><span class="st0">"en_US.UTF-8"</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<a href="../io/basic_ostream.html"><span class="kw1439">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"The UTF-8 file contains the following UCS4 code points: <span class="es1">\n</span>"</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">wchar_t</span> c<span class="sy4">;</span> fin <span class="sy1">>></span> c<span class="sy4">;</span> <span class="br0">)</span>
<a href="../io/basic_ostream.html"><span class="kw1439">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"U+"</span> <span class="sy1"><<</span> <a href="../io/manip/hex.html"><span class="kw1463">std::<span class="me2">hex</span></span></a> <span class="sy1"><<</span> <a href="../io/manip/setw.html"><span class="kw1478">std::<span class="me2">setw</span></span></a><span class="br0">(</span><span class="nu0">4</span><span class="br0">)</span> <span class="sy1"><<</span> <a href="../io/manip/setfill.html"><span class="kw1476">std::<span class="me2">setfill</span></span></a><span class="br0">(</span><span class="st0">'0'</span><span class="br0">)</span> <span class="sy1"><<</span> c <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
 
<span class="co1">// using standard (locale-independent) codecvt facet</span>
<a href="wstring_convert.html"><span class="kw1579">std::<span class="me2">wstring_convert</span></span></a><span class="sy1"><</span>
deletable_facet<span class="sy1"><</span>std<span class="sy4">::</span><span class="me2">codecvt</span><span class="sy1"><</span><span class="kw4">char16_t</span>, <span class="kw4">char</span>, <a href="../string/multibyte/mbstate_t.html"><span class="kw994">std::<span class="me2">mbstate_t</span></span></a><span class="sy1">>></span>, <span class="kw4">char16_t</span><span class="sy1">></span> conv16<span class="sy4">;</span>
<a href="../string/basic_string.html"><span class="kw1049">std::<span class="me2">u16string</span></span></a> str16 <span class="sy1">=</span> conv16.<span class="me1">from_bytes</span><span class="br0">(</span>data<span class="br0">)</span><span class="sy4">;</span>
 
<a href="../io/basic_ostream.html"><span class="kw1439">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"The UTF-8 file contains the following UTF-16 code points: <span class="es1">\n</span>"</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">char16_t</span> c <span class="sy4">:</span> str16<span class="br0">)</span>
<a href="../io/basic_ostream.html"><span class="kw1439">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"U+"</span> <span class="sy1"><<</span> <a href="../io/manip/hex.html"><span class="kw1463">std::<span class="me2">hex</span></span></a> <span class="sy1"><<</span> <a href="../io/manip/setw.html"><span class="kw1478">std::<span class="me2">setw</span></span></a><span class="br0">(</span><span class="nu0">4</span><span class="br0">)</span> <span class="sy1"><<</span> <a href="../io/manip/setfill.html"><span class="kw1476">std::<span class="me2">setfill</span></span></a><span class="br0">(</span><span class="st0">'0'</span><span class="br0">)</span> <span class="sy1"><<</span> c <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p>Output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">The UTF-8 file contains the following UCS4 code points:
U+007a
U+00df
U+6c34
U+1f34c
The UTF-8 file contains the following UTF-16 code points:
U+007a
U+00df
U+6c34
U+d83c
U+df4c</pre></div></div>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/codecvt&action=edit&section=6" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="wikitable" style="font-size:85%; text-align:center;">
<tr>
<th> Character<br />conversions
</th>
<th> narrow multibyte<br />(char)
</th>
<th> UTF-8<br />(char)
</th>
<th> UTF-16<br />(char16_t)
</th></tr>
<tr>
<th> UTF-16
</th>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="../string/multibyte/mbrtoc16.html" title="cpp/string/multibyte/mbrtoc16"><tt>mbrtoc16</tt></a> / <a href="../string/multibyte/c16rtomb.html" title="cpp/string/multibyte/c16rtomb"><tt>c16rtomb</tt></a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><strong class="selflink"><tt>codecvt</tt></strong><char16_t, char, mbstate_t><br /><a href="codecvt_utf8_utf16.html" title="cpp/locale/codecvt utf8 utf16"><tt>codecvt_utf8_utf16</tt></a><char16_t><br /><a href="codecvt_utf8_utf16.html" title="cpp/locale/codecvt utf8 utf16"><tt>codecvt_utf8_utf16</tt></a><char32_t><br /><a href="codecvt_utf8_utf16.html" title="cpp/locale/codecvt utf8 utf16"><tt>codecvt_utf8_utf16</tt></a><wchar_t>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> UCS2
</th>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"> No
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="codecvt_utf8.html" title="cpp/locale/codecvt utf8"><tt>codecvt_utf8</tt></a><char16_t>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="codecvt_utf16.html" title="cpp/locale/codecvt utf16"><tt>codecvt_utf16</tt></a><char16_t>
</td></tr>
<tr>
<th> UTF-32/UCS4<br />(char32_t)
</th>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="../string/multibyte/mbrtoc32.html" title="cpp/string/multibyte/mbrtoc32"><tt>mbrtoc32</tt></a> / <a href="../string/multibyte/c32rtomb.html" title="cpp/string/multibyte/c32rtomb"><tt>c32rtomb</tt></a>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><strong class="selflink"><tt>codecvt</tt></strong><char32_t, char, mbstate_t><br /><a href="codecvt_utf8.html" title="cpp/locale/codecvt utf8"><tt>codecvt_utf8</tt></a><char32_t>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="codecvt_utf16.html" title="cpp/locale/codecvt utf16"><tt>codecvt_utf16</tt></a><char32_t>
</td></tr>
<tr>
<th> UCS2/UCS4<br />(wchar_t)
</th>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"> No
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="codecvt_utf8.html" title="cpp/locale/codecvt utf8"><tt>codecvt_utf8</tt></a><wchar_t>
</td>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><a href="codecvt_utf16.html" title="cpp/locale/codecvt utf16"><tt>codecvt_utf16</tt></a><wchar_t>
</td></tr>
<tr>
<th> wide<br />(wchar_t)
</th>
<td style="background: #90ff90; color: black; vertical-align: middle; text-align: center;" class="table-yes"><strong class="selflink"><tt>codecvt</tt></strong><wchar_t, char, mbstate_t><br /><a href="../string/multibyte/mbsrtowcs.html" title="cpp/string/multibyte/mbsrtowcs"><tt>mbsrtowcs</tt></a> / <a href="../string/multibyte/wcsrtombs.html" title="cpp/string/multibyte/wcsrtombs"><tt>wcsrtombs</tt></a>
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"> No
</td>
<td style="background:#ff9090; color:black; vertical-align: middle; text-align: center;" class="table-no"> No
</td></tr></table>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt_base.html" title="cpp/locale/codecvt base"> <span class="t-lines"><span>codecvt_base</span></span></a></div></div>
</td>
<td> defines character conversion errors <br /> <span class="t-mark">(class template)</span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt_byname.html" title="cpp/locale/codecvt byname"> <span class="t-lines"><span>codecvt_byname</span></span></a></div></div>
</td>
<td> creates a codecvt facet for the named locale <br /> <span class="t-mark">(class template)</span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt_utf8.html" title="cpp/locale/codecvt utf8"> <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></span></div></div>
</td>
<td> converts between UTF-8 and UCS2/UCS4 <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/dsc_codecvt_utf8&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt_utf16.html" title="cpp/locale/codecvt utf16"> <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></span></div></div>
</td>
<td> converts between UTF-16 and UCS2/UCS4 <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/dsc_codecvt_utf16&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="codecvt_utf8_utf16.html" title="cpp/locale/codecvt utf8 utf16"> <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></span></div></div>
</td>
<td> converts between UTF-8 and UTF-16 <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/locale/dsc_codecvt_utf8_utf16&action=edit">[edit]</a></span>
</td></tr>
</table>
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