100 lines
4.8 KiB
HTML
100 lines
4.8 KiB
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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<title>std::fgetpos</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_io_c_fgetpos skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>fgetpos</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-io.html">io</a>‎ | <a href="cpp-io-c.html">c</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-cstdio.html"><cstdio></a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">int</span> fgetpos<span class="br0">(</span> <a href="cpp-io-c.html"><span class="kw1876">std::<span class="me2">FILE</span></span></a><span class="sy2">*</span> stream, <a href="cpp-io-c.html"><span class="kw1877">std::<span class="me2">fpos_t</span></span></a><span class="sy2">*</span> pos <span class="br0">)</span><span class="sy4">;</span></span></div>
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<p>获得文件流 <code>stream</code> 的文件位置指示器和当前分析状态（若存在），并将它们存储于 <code>pos</code> 所指向的对象。存储的值仅在作为 <span class="t-lc"><a href="cpp-io-c-fsetpos.html">std::fsetpos</a></span> 的输入的情况有意义。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<td>stream</td>
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<td>-</td>
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<td>要检验的文件流</td>
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</tr>
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<tr class="t-par">
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<td>pos</td>
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<td>-</td>
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<td>指向要存储文件位置指示器到的 <span class="t-c"><span class="mw-geshi cpp source-cpp">fpos_t</span></span> 对象的指针</td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<p>成功时为 <span class="t-c"><span class="mw-geshi cpp source-cpp">​<span class="nu0">0</span>​</span></span> ，否则非零值。失败时还设置 <span class="t-lc"><a href="cpp-error-errno.html">errno</a></span> 。</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<td class="mbox-text" style="">本节未完成<br />
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原因：暂无示例</td>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<div class="t-dsc-member-div">
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<div><a href="cpp-io-c-ftell.html"><span class="t-lines"><span>ftell</span></span></a></div>
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<td>返回当前文件位置指示器<br />
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<span class="t-mark">(函数)</span></td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-io-c-fseek.html"><span class="t-lines"><span>fseek</span></span></a></div>
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</td>
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<td>移动文件位置指示器到文件中的指定位置<br />
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<span class="t-mark">(函数)</span></td>
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<div><a href="cpp-io-c-fsetpos.html"><span class="t-lines"><span>fsetpos</span></span></a></div>
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</td>
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<td>移动文件位置指示器到文件中的指定位置<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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