218 lines
9.9 KiB
HTML
218 lines
9.9 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::messages</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_messages 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>messages</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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<tr class="t-dsc-header">
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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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</tr>
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<tr class="t-dcl">
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<td class="t-dcl-nopad">
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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="sy1">></span><br />
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<span class="kw1">class</span> messages<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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<td></td>
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<td></td>
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</table>
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<p>类模板 <span class="t-lc"><strong class="selflink">std::messages</strong></span> 是标准 locale 平面，它封装从消息目录取得字符串，例如 GNU <a rel="nofollow" class="external text" href="http://www.gnu.org/s/gettext/">gettext</a> 或 POSIX <a rel="nofollow" class="external text" href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/catgets.html">catgets</a> 所提供者。</p>
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<p>消息源是实现定义的。</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: 248px;"><map name="ImageMap_1_529976725" id="ImageMap_1_529976725">
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<area href="cpp-locale-messages_base.html" shape="rect" coords="4,4,114,36" alt="cpp/locale/messages base" />
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<area href="cpp-locale-locale-facet.html" shape="rect" coords="7,52,110,85" alt="cpp/locale/locale/facet" /></map><img alt="std-messages-inheritance.svg" src="std-messages-inheritance.svg" width="248" height="88" usemap="#ImageMap_1_529976725" /></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>标准库提供二个孤立（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">messages</span><span class="sy1"><</span><span class="kw4">char</span><span class="sy1">></span></span></span></td>
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<td>访问窄字符串消息目录</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">messages</span><span class="sy1"><</span><span class="kw4">wchar_t</span><span class="sy1">></span></span></span></td>
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<td>访问宽字符串消息目录</td>
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</tr>
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</table>
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<p>另外， C++ 程序中的每个 locale 对象还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><code>std::basic_string<CharT></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.E5.87.BD.E6.95.B0">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 t-dsc-member-nobold-div">
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<div><a href="cpp-locale-messages-messages.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 messages 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-messages-~messages.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>析构 messages 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-messages-open.html"><span class="t-lines"><span>open</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_open</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-messages-get.html"><span class="t-lines"><span>get</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_get</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-messages-close.html"><span class="t-lines"><span>close</span></span></a></div>
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</div>
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</td>
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<td>调用 <code>do_close</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=".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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<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-messages-open.html"><span class="t-lines"><span>do_open</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>打开具名消息目录<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-messages-get.html"><span class="t-lines"><span>do_get</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>从打开的消息目录获取消息<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-messages-close.html"><span class="t-lines"><span>do_close</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>关闭消息目录<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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<div class="t-inherited">
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<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::messages_base">继承自 <span style="font-size:0.7em; line-height:130%">std::</span>messages_base</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>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>catalog</code></td>
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="coMULTI">/* 未指定的有符号整数类型 */</span></span></span></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-messages_base.html"><span class="t-lines"><span>messages_base</span></span></a></div>
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</div>
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</td>
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<td>定义消息目录类型<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-messages_byname.html"><span class="t-lines"><span>messages_byname</span></span></a></div>
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</div>
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</td>
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<td>为具名本地环境创建 massages 平面<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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