361 lines
18 KiB
HTML
361 lines
18 KiB
HTML
<!DOCTYPE html>
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>std::moneypunct</title>
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<link rel="stylesheet" href="ext.css" />
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<link rel="stylesheet" href="site_modules.css" />
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</head>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_locale_moneypunct skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<div id="content"><a id="top"></a>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>moneypunct</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-locale.html">locale</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<table class="t-dcl-begin">
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<tbody>
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<td>
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<div>定义于头文件 <code><a href="cpp-header-locale.html"><locale></a></code></div>
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</td>
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<td></td>
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<td></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> CharT, <span class="kw4">bool</span> International <span class="sy1">=</span> <span class="kw2">false</span> <span class="sy1">></span><br />
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<span class="kw1">class</span> moneypunct<span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td class="t-dcl-nopad"></td>
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<p>平面 <span class="t-lc"><strong class="selflink">std::moneypunct</strong></span> 封装货币值格式化偏好。流 I/O 操纵符 <span class="t-lc"><a href="cpp-io-manip-get_money.html">std::get_money</a></span> 和 <span class="t-lc"><a href="cpp-io-manip-put_money.html">std::put_money</a></span> 通过 <span class="t-lc"><a href="cpp-locale-money_get.html">std::money_get</a></span> 和 <span class="t-lc"><a href="cpp-locale-money_put.html">std::money_put</a></span> 用 <span class="t-lc"><strong class="selflink">std::moneypunct</strong></span> 分析货币值输入及格式化货币值输出。</p>
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<div class="t-inheritance-diagram">
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<div class="center">
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<div class="noresize" style="height: 88px; width: 302px;"><map name="ImageMap_1_1228036686" id="ImageMap_1_1228036686">
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<area href="cpp-locale-money_base.html" shape="rect" coords="5,4,107,36" alt="cpp/locale/money base" />
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<area href="cpp-locale-locale-facet.html" shape="rect" coords="5,52,107,85" alt="cpp/locale/locale/facet" /></map><img alt="std-moneypunct-inheritance.svg" src="std-moneypunct-inheritance.svg" width="302" height="88" usemap="#ImageMap_1_1228036686" /></div>
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</div>
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<div style="text-align:center;">
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<p><span style="font-size:0.7em; line-height:130%">继承图</span></p>
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</div>
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</div>
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<p>标准库提供四个孤立（独立于本地环境）的特化：</p>
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<table class="t-dsc-begin">
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<tr class="t-dsc-header">
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<td colspan="2">
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<div>定义于头文件 <code><a href="cpp-header-locale.html"><locale></a></code></div>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">moneypunct</span><span class="sy1"><</span><span class="kw4">char</span><span class="sy1">></span></span></span></td>
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<td>提供 "C" 本地环境偏好的等价版本</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">moneypunct</span><span class="sy1"><</span><span class="kw4">wchar_t</span><span class="sy1">></span></span></span></td>
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<td>提供 "C" 本地环境偏好的宽字符等价版本</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">moneypunct</span><span class="sy1"><</span><span class="kw4">char</span>, <span class="kw2">true</span><span class="sy1">></span></span></span></td>
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<td>提供 "C" 本地环境偏好的等价版本，带国际通货符号</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">moneypunct</span><span class="sy1"><</span><span class="kw4">wchar_t</span>, <span class="kw2">true</span><span class="sy1">></span></span></span></td>
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<td>提供 "C" 本地环境偏好的宽字符等价版本，带国际通货符号</td>
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</tr>
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</table>
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<p>另外， C++ 程序中构造的每个 locale 对象都实装这些特化的其自身（本地环境限定）版本。</p>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">成员类型</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-hitem">
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<td>成员类型</td>
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<td>定义</td>
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</tr>
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<tr class="t-dsc">
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<td><code>char_type</code></td>
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<td><code>CharT</code></td>
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</tr>
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<tr class="t-dsc">
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<td><code>string_type</code></td>
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-string-basic_string.html"><span class="kw1228">std::<span class="me2">basic_string</span></span></a><span class="sy1"><</span>CharT<span class="sy1">></span></span></span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">成员函数</span></h3>
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<table class="t-dsc-begin">
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<td>
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<div class="t-dsc-member-div t-dsc-member-nobold-div">
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<div><a href="cpp-locale-moneypunct-moneypunct.html"><span class="t-lines"><span>(构造函数)</span></span></a></div>
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</div>
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</td>
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<td>构造新的 moneypunct 平面<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div t-dsc-member-nobold-div">
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<div><a href="cpp-locale-moneypunct-~moneypunct.html"><span class="t-lines"><span>(析构函数)</span></span></a></div>
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</div>
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</td>
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<td>销毁 moneypunct 平面<br />
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<span class="t-mark">(受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-decimal_point.html"><span class="t-lines"><span>decimal_point</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_decimal_point</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-thousands_sep.html"><span class="t-lines"><span>thousands_sep</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_thousands_sep</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-grouping.html"><span class="t-lines"><span>grouping</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_grouping</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-curr_symbol.html"><span class="t-lines"><span>curr_symbol</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_curr_symbol</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-positive_sign.html"><span class="t-lines"><span>positive_sign</span><span>negative_sign</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_positive_sign</code> 或 <code>do_negative_sign</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-frac_digits.html"><span class="t-lines"><span>frac_digits</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_frac_digits</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-pos_format.html"><span class="t-lines"><span>pos_format</span><span>neg_format</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_pos_format</code>/<code>do_neg_format</code><br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E5.8F.97.E4.BF.9D.E6.8A.A4.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">受保护成员函数</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-decimal_point.html"><span class="t-lines"><span>do_decimal_point</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供用作小数点的字符<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-thousands_sep.html"><span class="t-lines"><span>do_thousands_sep</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供用作千分隔符的字符<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-grouping.html"><span class="t-lines"><span>do_grouping</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供二个千分隔符间的位数<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-curr_symbol.html"><span class="t-lines"><span>do_curr_symbol</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供用作通货标识符的字符串<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-positive_sign.html"><span class="t-lines"><span>do_positive_sign</span><span>do_negative_sign</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供指示正或负值的字符串<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-frac_digits.html"><span class="t-lines"><span>do_frac_digits</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供小数点后要显示的位数<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct-pos_format.html"><span class="t-lines"><span>do_pos_format</span><span>do_neg_format</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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</div>
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</td>
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<td>提供通货值的格式化模式<br />
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<span class="t-mark">(虚受保护成员函数)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.B8.B8.E9.87.8F">成员常量</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-hitem">
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<td>成员</td>
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<td>定义</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-dsc-small">const bool</span> <code>intl</code> <span class="t-cmark">[静态]</span></td>
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<td><code>International</code></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.AF.B9.E8.B1.A1">成员对象</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><span class="t-lines"><span><span class="t-dsc-small">static std::locale::id</span> id</span></span></div>
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</div>
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</td>
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<td>locale 的 <i>id</i><br />
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<span class="t-mark">(公开成员对象)</span></td>
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</tr>
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</table>
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<div class="t-template-editlink" style=""></div>
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<div class="t-inherited">
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<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::money_base">继承自 <a href="cpp-locale-money_base.html"><span style="font-size:0.7em; line-height:130%">std::</span>money_base</a></span></h2>
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<table class="t-dsc-begin">
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<tr class="t-dsc-hitem">
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<td>成员类型</td>
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<td>定义</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">enum</span> part <span class="br0">{</span> none, space, symbol, sign, value <span class="br0">}</span><span class="sy4">;</span></span></span></td>
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<td>无作用域枚举类型</td>
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</tr>
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<tr class="t-dsc">
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw1">struct</span> pattern <span class="br0">{</span> <span class="kw4">char</span> field<span class="br0">[</span><span class="nu0">4</span><span class="br0">]</span><span class="sy4">;</span> <span class="br0">}</span><span class="sy4">;</span></span></span></td>
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<td>货币格式类型</td>
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</tr>
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</table>
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<table class="t-dsc-begin">
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<tr class="t-dsc-hitem">
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<td>枚举常量</td>
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<td>解释</td>
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</tr>
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<tr class="t-dsc">
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<td><code>none</code></td>
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<td>容许但不要求空白符，除了在末位置不容许空白符</td>
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</tr>
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<tr class="t-dsc">
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<td><code>space</code></td>
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<td>要求一或多个空白字符</td>
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</tr>
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<tr class="t-dsc">
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<td><code>symbol</code></td>
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<td>要求 moneypunct::curr_symbol 所返回的字符序列</td>
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</tr>
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<tr class="t-dsc">
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<td><code>sign</code></td>
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<td>要求 moneypunct::positive_sign 或 moneypunct::negative_sign 所返回的首个字符</td>
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</tr>
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<tr class="t-dsc">
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<td><code>value</code></td>
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<td>要求绝对数值货币值</td>
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</tr>
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</table>
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</div>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-money_base.html"><span class="t-lines"><span>money_base</span></span></a></div>
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</div>
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</td>
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<td>定义货币格式化模式<br />
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<span class="t-mark">(类)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-moneypunct_byname.html"><span class="t-lines"><span>moneypunct_byname</span></span></a></div>
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</div>
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</td>
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<td>表示系统提供的具名本地环境的 <span class="t-lc"><strong class="selflink">std::moneypunct</strong></span><br />
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<span class="t-mark">(类模板)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-money_get.html"><span class="t-lines"><span>money_get</span></span></a></div>
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</div>
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</td>
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<td>从输入字符序列中解析并构造货币值<br />
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<span class="t-mark">(类模板)</span></td>
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</tr>
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-locale-money_put.html"><span class="t-lines"><span>money_put</span></span></a></div>
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</div>
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</td>
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<td>格式化货币值为字符序列以输出<br />
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<span class="t-mark">(类模板)</span></td>
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</tr>
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</table>
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</div>
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<div class="visualClear"></div>
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</div>
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</div>
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</div>
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</body>
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</html>
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