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hustoj/web/cppreference-zh/chmhelp/c-io-ferror.html
klarkxy 196e706fe4 上传cppreference
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<!DOCTYPE html>
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
<head><meta http-equiv="x-ua-compatible" content="ie=edge">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ferror</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-c_io_ferror skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading">ferror</h1>
<div id="bodyContent">
<div id="contentSub"><span class="subpages">&lt; <a href="c.html">c</a>&lrm; | <a href="c-io.html">io</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code>&lt;stdio.h&gt;</code></div>
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<div><span class="mw-geshi c source-c"><span class="kw4">int</span> ferror<span class="br0">(</span> <a href="c-io.html"><span class="kw883">FILE</span></a> <span class="sy2">*</span>stream <span class="br0">)</span><span class="sy4">;</span></span></div>
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<p>&#26816;&#26597;&#32473;&#23450;&#25991;&#20214;&#27969;&#30340;&#38169;&#35823;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
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<td>stream</td>
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<td>&#35201;&#26816;&#26597;&#30340;&#25991;&#20214;&#27969;</td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p>&#33509;&#25991;&#20214;&#27969;&#24050;&#20986;&#29616;&#38169;&#35823;&#21017;&#20026;&#38750;&#38646;&#20540;&#65292;&#21542;&#21017;&#20026; <span class="t-c"><span class="mw-geshi c source-c">&#8203;<span class="nu0">0</span>&#8203;</span></span></p>
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
<div class="t-example">
<div class="t-example-live-link"></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="c source-c">
<pre class="de1"><span class="co2">#include &lt;stdio.h&gt;</span>
<span class="co2">#include &lt;stdlib.h&gt;</span>
<span class="co2">#include &lt;locale.h&gt;</span>
<span class="co2">#include &lt;wchar.h&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="kw4">char</span><span class="sy2">*</span> fname <span class="sy1">=</span> <a href="c-io-tmpnam.html"><span class="kw882">tmpnam</span></a><span class="br0">(</span><a href="c-types-NULL.html"><span class="kw103">NULL</span></a><span class="br0">)</span><span class="sy4">;</span>
<a href="c-io.html"><span class="kw883">FILE</span></a><span class="sy2">*</span> f <span class="sy1">=</span> <a href="c-io-fopen.html"><span class="kw819">fopen</span></a><span class="br0">(</span>fname, <span class="st0">&quot;wb&quot;</span><span class="br0">)</span><span class="sy4">;</span>
<a href="c-io-fputs.html"><span class="kw832">fputs</span></a><span class="br0">(</span><span class="st0">&quot;<span class="es2">\xff</span><span class="es2">\xff</span><span class="es1">\n</span>&quot;</span>, f<span class="br0">)</span><span class="sy4">;</span> <span class="co1">// &#19981;&#26159;&#21512;&#27861;&#30340; UTF-8 &#24207;&#21015;</span>
<a href="c-io-fclose.html"><span class="kw822">fclose</span></a><span class="br0">(</span>f<span class="br0">)</span><span class="sy4">;</span>
<a href="c-locale-setlocale.html"><span class="kw900">setlocale</span></a><span class="br0">(</span><a href="c-locale-LC_categories.html"><span class="kw903">LC_ALL</span></a>, <span class="st0">&quot;en_US.utf8&quot;</span><span class="br0">)</span><span class="sy4">;</span>
f <span class="sy1">=</span> <a href="c-io-fopen.html"><span class="kw819">fopen</span></a><span class="br0">(</span>fname, <span class="st0">&quot;rb&quot;</span><span class="br0">)</span><span class="sy4">;</span>
wint_t ch<span class="sy4">;</span>
<span class="kw1">while</span> <span class="br0">(</span><span class="br0">(</span>ch<span class="sy1">=</span><a href="c-io-fgetwc.html"><span class="kw838">fgetwc</span></a><span class="br0">(</span>f<span class="br0">)</span><span class="br0">)</span> <span class="sy3">!</span><span class="sy1">=</span> WEOF<span class="br0">)</span> <span class="co1">// &#35797;&#22270;&#35835;&#20316; UTF-8 &#32780;&#22833;&#36133;</span>
<a href="c-io-fprintf.html"><span class="kw851">printf</span></a><span class="br0">(</span><span class="st0">&quot;%#x &quot;</span>, ch<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">if</span> <span class="br0">(</span><a href="c-io-feof.html"><span class="kw877">feof</span></a><span class="br0">(</span>f<span class="br0">)</span><span class="br0">)</span>
<a href="c-io-puts.html"><span class="kw836">puts</span></a><span class="br0">(</span><span class="st0">&quot;EOF indicator set&quot;</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">if</span> <span class="br0">(</span>ferror<span class="br0">(</span>f<span class="br0">)</span><span class="br0">)</span>
<a href="c-io-puts.html"><span class="kw836">puts</span></a><span class="br0">(</span><span class="st0">&quot;Error indicator set&quot;</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<p>&#36755;&#20986;&#65306;</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="text source-text">
<pre class="de1">Error indicator set</pre></div>
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<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">&#24341;&#29992;</span></h3>
<div class="t-ref-std-11">
<ul>
<li>C11 &#26631;&#20934;&#65288;ISO/IEC 9899:2011&#65289;&#65306;</li>
</ul>
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<dd>
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<li>7.21.10.3 The ferror function (p: 339)</li>
</ul>
</dd>
</dl>
<div class="t-ref-std-c99">
<ul>
<li>C99 &#26631;&#20934;&#65288;ISO/IEC 9899:1999&#65289;&#65306;</li>
</ul>
<dl>
<dd>
<ul>
<li>7.19.10.3 The ferror function (p: 305)</li>
</ul>
</dd>
</dl>
<div class="t-ref-std-c89">
<ul>
<li>C89/C90 &#26631;&#20934;&#65288;ISO/IEC 9899:1990&#65289;&#65306;</li>
</ul>
<dl>
<dd>
<ul>
<li>4.9.10.3 The ferror function</li>
</ul>
</dd>
</dl>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
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<div class="t-dsc-member-div">
<div><a href="c-io-clearerr.html"><span class="t-lines"><span>clearerr</span></span></a></div>
</div>
</td>
<td>&#28165;&#38500;&#38169;&#35823;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="c-io-feof.html"><span class="t-lines"><span>feof</span></span></a></div>
</div>
</td>
<td>&#26816;&#26597;&#25991;&#20214;&#32467;&#23614;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="c-io-perror.html"><span class="t-lines"><span>perror</span></span></a></div>
</div>
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<td>&#26174;&#31034;&#23545;&#24212;&#24403;&#21069;&#38169;&#35823;&#30340;&#23383;&#31526;&#20018;&#21040; <span class="t-lc"><a href="c-io.html">stderr</a></span><br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
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<div class="visualClear"></div>
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