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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::num_get::</span>get, <span style="font-size:0.7em; line-height:130%">std::num_get::</span>do_get</h1>
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<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><a href="../codecvt.html" title="cpp/locale/codecvt"><span class="t-lines"><span>codecvt</span></span></a></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"><a href="../num_get.html" title="cpp/locale/num get"><tt>std::num_get</tt></a><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="num_get.html" title="cpp/locale/num get/num get"><span class="t-lines"><span>num_get::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_get.html" title="cpp/locale/num get/~num get"><span class="t-lines"><span>num_get::~num_get</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>num_get::get</span><span>num_get::do_get</span></span></strong></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/num_get/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(1)</td>
<td></td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">public</span><span class="sy4">:</span><br />
<p>iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
</p>
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">bool</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">long</span> <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">short</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">int</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">float</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">double</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">long</span> <span class="kw4">double</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp">iter_type get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
               <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">void</span><span class="sy2">*</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
</tbody><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(2)</td>
<td></td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">protected</span><span class="sy4">:</span><br />
<p><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
</p>
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">bool</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">long</span> <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">short</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">int</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">float</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">double</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">long</span> <span class="kw4">double</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> iter_type do_get<span class="br0">(</span> iter_type in, iter_type end, <a href="../../io/ios_base.html"><span class="kw1666">std::<span class="me2">ios_base</span></span></a><span class="sy3">&</span> str, <br />
                          <a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a><span class="sy3">&</span> err, <span class="kw4">void</span><span class="sy2">*</span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td class="t-dcl-nopad"> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<div class="t-li1"><span class="t-li">1)</span> Public member function, calls the member function <code>do_get</code> of the most derived class.</div>
<div class="t-li1"><span class="t-li">2)</span> Reads characters from the input iterator <code>in</code> and generates the value of the type of <code>v</code>, taking into account IO stream formatting flags from <code>str.flags()</code>, character classification rules from <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../ctype.html"><span class="kw1935">std::<span class="me2">ctype</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span>, and numeric punctuation characters from <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span>. This function is called by all formatted input stream operators such as <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../../io/cin.html"><span class="kw1753">std::<span class="me2">cin</span></span></a> <span class="sy1">>></span> n<span class="sy4">;</span></span></span>.</div>
<p>Conversion occurs in three stages
</p>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="get.html#Stage_1:_conversion_specifier_selection"><span class="tocnumber">1</span> <span class="toctext">Stage 1: conversion specifier selection</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="get.html#Stage_2:_character_extraction"><span class="tocnumber">2</span> <span class="toctext">Stage 2: character extraction</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="get.html#Stage_3:_conversion_and_storage"><span class="tocnumber">3</span> <span class="toctext">Stage 3: conversion and storage</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="get.html#Return_value"><span class="tocnumber">4</span> <span class="toctext">Return value</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="get.html#Notes"><span class="tocnumber">5</span> <span class="toctext">Notes</span></a></li>
<li class="toclevel-1 tocsection-6"><a href="get.html#Example"><span class="tocnumber">6</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-1 tocsection-7"><a href="get.html#See_also"><span class="tocnumber">7</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=1" title="Edit section: Stage 1: conversion specifier selection">edit</a>]</span> <span class="mw-headline" id="Stage_1:_conversion_specifier_selection">Stage 1: conversion specifier selection</span></h4>
<ul><li> I/O format flags are obtained, as if by
</li></ul>
<dl><dd> <span class="t-c"><span class="mw-geshi cpp source-cpp">fmtflags basefield <span class="sy1">=</span> <span class="br0">(</span>str.<span class="me1">flags</span><span class="br0">(</span><span class="br0">)</span> <span class="sy3">&</span> <a href="../../io/ios_base/fmtflags.html"><span class="kw1679">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">basefield</span></span></a><span class="br0">)</span><span class="sy4">;</span></span></span>
</dd><dd> <span class="t-c"><span class="mw-geshi cpp source-cpp">fmtflags boolalpha <span class="sy1">=</span> <span class="br0">(</span>str.<span class="me1">flags</span><span class="br0">(</span><span class="br0">)</span> <span class="sy3">&</span> <a href="../../io/ios_base/fmtflags.html"><span class="kw1687">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">boolalpha</span></span></a><span class="br0">)</span><span class="sy4">;</span></span></span>
</dd></dl>
<ul><li> If the type of <code>v</code> is an integer type, the the first applicable choice of the following five is selected:
</li></ul>
<dl><dd> If <span class="t-c"><span class="mw-geshi cpp source-cpp">basefield <span class="sy1">==</span> oct</span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>o</span></span>
</dd><dd> If <span class="t-c"><span class="mw-geshi cpp source-cpp">basefield <span class="sy1">==</span> hex</span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>X</span></span>
</dd><dd> If <span class="t-c"><span class="mw-geshi cpp source-cpp">basefield <span class="sy1">==</span> <span class="nu0">0</span></span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>i</span></span>
</dd><dd> If the type of <code>v</code> is signed, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>d</span></span>
</dd><dd> If the type of <code>v</code> is unsigned, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>u</span></span>
</dd></dl>
<ul><li> For integer types, length modifier is added to the conversion specification if necessary: <span class="t-c"><span class="mw-geshi cpp source-cpp">h</span></span> for <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">short</span></span></span> and <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">short</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">l</span></span> for <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span></span></span> and <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">long</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">ll</span></span> for <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span> <span class="kw4">long</span></span></span> and <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span>
</li><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">float</span></span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>g</span></span>
</li><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">double</span></span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>lg</span></span>
</li><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span> <span class="kw4">double</span></span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>Lg</span></span>
</li><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">void</span><span class="sy2">*</span></span></span>, will use conversion specifier <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">%</span>p</span></span>
</li><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span> and <span class="t-c"><span class="mw-geshi cpp source-cpp">boolalpha<span class="sy1">==</span><span class="nu0">0</span></span></span>, proceeds as if the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span></span></span>, except for the value to be stored in <code>v</code> in stage 3.
</li><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span> and <span class="t-c"><span class="mw-geshi cpp source-cpp">boolalpha<span class="sy3">!</span><span class="sy1">=</span><span class="nu0">0</span></span></span>, the following replaces stages 2 and 3:
<ul><li> Successive characters obtained from the input iterator <code>in</code> are matched against the character sequences obtained from <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">falsename</span><span class="br0">(</span><span class="br0">)</span></span></span> and <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">></span> <span class="sy1">></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">truename</span><span class="br0">(</span><span class="br0">)</span></span></span> only as necessary as to identify the unique match. The input iterator <code>in</code> is compared to <code>end</code> only when necessary to obtain a character.
</li><li> If the target sequence is uniquely matched, <code>v</code> is set to the corresponding <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span> value. Otherwise <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> is stored in <code>v</code> and <span class="t-lc"><a href="../../io/ios_base/iostate.html" title="cpp/io/ios base/iostate">std::ios_base::failbit</a></span> is assigned to <code>err</code>. If unique match could not be found before the input ended (<span class="t-c"><span class="mw-geshi cpp source-cpp">in<span class="sy1">==</span>end</span></span>), <span class="t-c"><span class="mw-geshi cpp source-cpp">err<span class="sy3">|</span><span class="sy1">=</span><a href="../../io/ios_base/iostate.html"><span class="kw1698">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">eofbit</span></span></a></span></span> is executed.
</li></ul>
</li></ul>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=2" title="Edit section: Stage 2: character extraction">edit</a>]</span> <span class="mw-headline" id="Stage_2:_character_extraction">Stage 2: character extraction</span></h4>
<ul><li> If <span class="t-c"><span class="mw-geshi cpp source-cpp">in<span class="sy1">==</span>end</span></span>, Stage 2 is terminated immediately, no further characters are extracted
</li><li> The next character is extracted from <span class="t-c"><span class="mw-geshi cpp source-cpp">in</span></span> as if by <span class="t-c"><span class="mw-geshi cpp source-cpp">char_type ct <span class="sy1">=</span> <span class="sy2">*</span>in<span class="sy4">;</span></span></span>
<ul><li> If the character matches one of <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="st0">"0123456789abcdefxABCDEFX+-"</span></span></span>, widened to the locale's char_type as if by <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../ctype.html"><span class="kw1935">std::<span class="me2">ctype</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">widen</span><span class="br0">(</span><span class="br0">)</span></span></span>, it is converted to the corresponding <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span></span></span>.
</li><li> If the character matches the decimal point separator (<span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">decimal_point</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span>), it is replaced by <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="st0">'.'</span></span></span>.
</li><li> If the character matches the thousands separator (<span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">thousands_sep</span><span class="br0">(</span><span class="br0">)</span></span></span>) and the thousands separation is in use at all <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">grouping</span><span class="br0">(</span><span class="br0">)</span>.<span class="me1">length</span><span class="br0">(</span><span class="br0">)</span> <span class="sy3">!</span><span class="sy1">=</span> <span class="nu0">0</span></span></span>, then if the decimal point <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="st0">'.'</span></span></span> has not yet been accumulated, the position of the character is remembered, but the character is otherwise ignored. If the decimal point has already been accumulated, the character is discarded and Stage 2 terminates.
</li><li> In any case, the check is made whether the <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span></span></span> obtained from the previous steps is allowed in the input field that would be parsed by <span class="t-lc"><a href="../../io/c/scanf.html" title="cpp/io/c/fscanf">std::scanf</a></span> given the conversion specifier selected in Stage 1. If it is allowed, it is accumulated in a temporary buffer and Stage 2 repeats. If it is not allowed, Stage 2 terminates.
</li></ul>
</li></ul>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=3" title="Edit section: Stage 3: conversion and storage">edit</a>]</span> <span class="mw-headline" id="Stage_3:_conversion_and_storage">Stage 3: conversion and storage</span></h4>
<ul><li> The sequence of <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">char</span></span></span>s accumulated in Stage 2 is converted to a numeric value
</li></ul>
<table class="t-rev-begin">
<tr class="t-rev t-until-cxx11"><td>
<dl><dd>The input is parsed as if by <span class="t-lc"><a href="../../io/c/scanf.html" title="cpp/io/c/fscanf">std::scanf</a></span> with the conversion specifier selected in Stage 1
</dd></dl>
</td>
<td><span class="t-mark-rev t-until-cxx11">(until C++11)</span></td></tr>
<tr class="t-rev t-since-cxx11 t-until-cxx17"><td>
<dl><dd>The input is parsed as if by <span class="t-lc"><a href="../../string/byte/strtol.html" title="cpp/string/byte/strtol">std::strtoll</a></span> for signed integer <code>v</code>, <span class="t-lc"><a href="../../string/byte/strtoul.html" title="cpp/string/byte/strtoul">std::strtoull</a></span> for unsigned integer <code>v</code>, or <span class="t-lc"><a href="../../string/byte/strtof.html" title="cpp/string/byte/strtof">std::strtold</a></span> for floating-point <code>v</code>
</dd></dl>
</td>
<td><span class="t-mark-rev t-since-cxx11">(since C++11)</span><br /><span class="t-mark-rev t-until-cxx17">(until C++17)</span></td></tr>
<tr class="t-rev t-since-cxx17"><td>
<dl><dd>The input is parsed as if by <span class="t-lc"><a href="../../string/byte/strtol.html" title="cpp/string/byte/strtol">std::strtoll</a></span> for signed integer <code>v</code>, <span class="t-lc"><a href="../../string/byte/strtoul.html" title="cpp/string/byte/strtoul">std::strtoull</a></span> for unsigned integer <code>v</code>, <span class="t-lc"><a href="../../string/byte/strtof.html" title="cpp/string/byte/strtof">std::strtof</a></span> for <code>float</code> <code>v</code>, <span class="t-lc"><a href="../../string/byte/strtof.html" title="cpp/string/byte/strtof">std::strtod</a></span> for <code>double</code> <code>v</code>, or <span class="t-lc"><a href="../../string/byte/strtof.html" title="cpp/string/byte/strtof">std::strtold</a></span> for <code>long double</code> <code>v</code>
</dd></dl>
</td>
<td><span class="t-mark-rev t-since-cxx17">(since C++17)</span></td></tr>
</table>
<table class="t-rev-begin">
<tr class="t-rev t-since-cxx11"><td>
<ul><li> If the conversion function fails to convert the entire field, the value <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">0</span></span></span> is stored in <code>v</code>
</li><li> If the conversion function results in a positive value too large to fit in the type of <code>v</code>, the most positive representable value is stored in <code>v</code>
</li><li> If the conversion function results in a negative value too large to fit in the type of <code>v</code>, the most negative representable value is stored in <code>v</code><span class="t-rev-inl t-until-cxx17"><span>, or zero for unsigned integer types.</span> <span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span>
</li></ul>
</td>
<td><span class="t-mark-rev t-since-cxx11">(since C++11)</span></td></tr>
</table>
<ul><li> In any case, if the conversion function fails <span class="t-lc"><a href="../../io/ios_base/iostate.html" title="cpp/io/ios base/iostate">std::ios_base::failbit</a></span> is assigned to <code>err</code>
</li><li> Otherwise, the numeric result of the conversion is stored in <code>v</code>
<ul><li> If the type of <code>v</code> is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span> and boolalpha is not set, then if the value to be stored is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">0</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> is stored, if the value to be stored is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">1</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> is stored, for any other value <span class="t-lc"><a href="../../io/ios_base/iostate.html" title="cpp/io/ios base/iostate">std::ios_base::failbit</a></span> is assigned to <code>err</code> and <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> is stored.
</li></ul>
</li><li> After this, digit grouping is checked. if the position of any of the thousands separators discarded in Stage 2 does not match the grouping provided by <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../numpunct.html"><span class="kw1958">std::<span class="me2">numpunct</span></span></a><span class="sy1"><</span>charT<span class="sy1">>></span><span class="br0">(</span>str.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">grouping</span><span class="br0">(</span><span class="br0">)</span></span></span>, <span class="t-lc"><a href="../../io/ios_base/iostate.html" title="cpp/io/ios base/iostate">std::ios_base::failbit</a></span> is assigned to <code>err</code>.
</li><li> If Stage 2 was terminated by the test <span class="t-c"><span class="mw-geshi cpp source-cpp">in<span class="sy1">==</span>end</span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">err<span class="sy3">|</span><span class="sy1">=</span><a href="../../io/ios_base/iostate.html"><span class="kw1698">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">eofbit</span></span></a></span></span> is executed to set the eof bit.
</li></ul>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=4" title="Edit section: Return value">edit</a>]</span> <span class="mw-headline" id="Return_value">Return value</span></h3>
<p><code>in</code>
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=5" title="Edit section: Notes">edit</a>]</span> <span class="mw-headline" id="Notes">Notes</span></h3>
<p>In C++98/C++03, if an error occurs, <code>v</code> is left unchanged. In C++11, it is set to a value as described above.
</p><p>The result of converting a negative number string into an unsigned integer was specified to produce zero until C++17, although some implementations followed the protocol of <span class="t-lc"><a href="../../string/byte/strtoul.html" title="cpp/string/byte/strtoul">std::strtoull</a></span> which negates in the target type, giving <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../../types/climits.1.html"><span class="kw400">LLONG_MAX</span></a></span></span> for <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="st0">"-1"</span></span></span>, and so produce the largest value of the target type instead. As of C++17, strictly following <span class="t-lc"><a href="../../string/byte/strtoul.html" title="cpp/string/byte/strtoul">std::strtoull</a></span> is the correct behavior.
</p><p>Because stage 2 filters out characters such as 'p', 'N' or 'i', the hexadecimal floating-point numbers such as "0x1.23p-10" and the strings "NaN" or "inf" may be rejected by <code>do_get(double)</code> even if they are valid input to <code>strtod</code>: this is <a rel="nofollow" class="external text" href="http://cplusplus.github.io/LWG/lwg-active.html#2381">LWG #2381</a>
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=6" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><p>
<p>An implementation of <span class="t-lc">operator>></span> for a user-defined type.
</p>
</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 <iterator></span>
<span class="co2">#include <locale></span>
 
<span class="kw1">struct</span> base <span class="br0">{</span> <span class="kw4">long</span> x<span class="sy4">;</span> <span class="br0">}</span><span class="sy4">;</span>
 
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">></span>
<a href="../../io/basic_istream.html"><span class="kw1710">std::<span class="me2">basic_istream</span></span></a><span class="sy1"><</span>CharT, Traits<span class="sy1">></span><span class="sy3">&</span>
operator <span class="sy1">>></span><span class="br0">(</span><a href="../../io/basic_istream.html"><span class="kw1710">std::<span class="me2">basic_istream</span></span></a><span class="sy1"><</span>CharT, Traits<span class="sy1">></span><span class="sy3">&</span> is,
base<span class="sy3">&</span> b<span class="br0">)</span>
<span class="br0">{</span>
<a href="../../io/ios_base/iostate.html"><span class="kw1694">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">iostate</span></span></a> err <span class="sy1">=</span> <a href="../../io/ios_base/iostate.html"><span class="kw1695">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">goodbit</span></span></a><span class="sy4">;</span>
<span class="kw1">try</span> <span class="co1">// setting err could throw</span>
<span class="br0">{</span>
<span class="kw1">typename</span> <a href="../../io/basic_istream.html"><span class="kw1710">std::<span class="me2">basic_istream</span></span></a><span class="sy1"><</span>CharT, Traits<span class="sy1">></span><span class="sy4">::</span><span class="me2">sentry</span> s<span class="br0">(</span>is<span class="br0">)</span><span class="sy4">;</span>
 
<span class="kw1">if</span> <span class="br0">(</span>s<span class="br0">)</span> <span class="co1">// if stream is ready for input</span>
<span class="br0">{</span>
<a href="../../iterator/istreambuf_iterator.html"><span class="kw669">std::<span class="me2">istreambuf_iterator</span></span></a><span class="sy1"><</span>CharT, Traits<span class="sy1">></span> end<span class="sy4">;</span>
<a href="../use_facet.html"><span class="kw1894">std::<span class="me2">use_facet</span></span></a><span class="sy1"><</span><a href="../num_get.html"><span class="kw1952">std::<span class="me2">num_get</span></span></a><span class="sy1"><</span>CharT<span class="sy1">>></span><span class="br0">(</span>is.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span>.<span class="me1">get</span><span class="br0">(</span>is, end, is, err, b.<span class="me1">x</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span> <span class="kw1">catch</span><span class="br0">(</span><a href="../../io/ios_base/failure.html"><span class="kw1667">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">failure</span></span></a><span class="sy3">&</span> error<span class="br0">)</span>
<span class="br0">{</span>
<span class="co1">// handle the exception</span>
<span class="br0">}</span>
<span class="kw1">return</span> is<span class="sy4">;</span>
<span class="br0">}</span>
 
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
base b<span class="sy4">;</span>
 
<a href="../../io/cin.html"><span class="kw1753">std::<span class="me2">cin</span></span></a> <span class="sy1">>></span> b<span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p><br />
</p>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/locale/num_get/get&action=edit&section=7" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="../../io/basic_istream/operator_gtgt.html" title="cpp/io/basic istream/operator gtgt"> <span class="t-lines"><span>operator>></span></span></a></div></div>
</td>
<td> extracts formatted data <br /> <span class="t-mark">(public member function of <code>std::basic_istream</code>)</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/io/basic_istream/dsc_operator_gtgt&action=edit">[edit]</a></span>
</td></tr>
</table>
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