75 lines
3.5 KiB
HTML
75 lines
3.5 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::chars_format</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_utility_chars_format 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>chars_format</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-utility.html">utility</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-charconv.html"><charconv></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 class="t-dcl t-since-cxx17">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw2">enum</span> <span class="kw1">class</span> chars_format <span class="br0">{</span><br /></span>
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<p> scientific <span class="sy1">=</span> <span class="coMULTI">/*unspecified*/</span>,<br />
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fixed <span class="sy1">=</span> <span class="coMULTI">/*unspecified*/</span>,<br />
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hex <span class="sy1">=</span> <span class="coMULTI">/*unspecified*/</span>,<br />
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general <span class="sy1">=</span> fixed <span class="sy3">|</span> scientific<br /></p>
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<span class="br0">}</span><span class="sy4">;</span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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<tr class="t-dcl-sep">
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<td></td>
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<p>用于为 <a href="cpp-utility-to_chars.html"><tt>std::to_chars</tt></a> 及 <a href="cpp-utility-from_chars.html"><tt>std::from_chars</tt></a> 指定浮点格式的<a href="cpp-named_req-BitmaskType.html"><span style="font-style:italic">位掩码类型</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(BitmaskType)</span></a> 。</p>
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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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<div class="t-dsc-member-div">
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<div><a href="cpp-utility-to_chars.html"><span class="t-lines"><span>to_chars</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div>
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</div>
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</td>
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<td>转换整数或浮点值到字符序列<br />
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<span class="t-mark">(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-utility-from_chars.html"><span class="t-lines"><span>from_chars</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div>
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</div>
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</td>
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<td>转换字符序列到整数或浮点值<br />
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<span class="t-mark">(函数)</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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