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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 --><!-- Copyright (c) 2001-2003 The Open Group, All Rights Reserved --><title>closedir</title></head><body bgcolor="white"><basefont size="3"> <a name="closedir"></a> <a name="tag_03_81"></a><!-- closedir --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_03_81_01"></a>NAME</h4><blockquote>closedir - close a directory stream</blockquote><h4><a name="tag_03_81_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><p><code><tt>#include <<a href="../basedefs/dirent.h.html">dirent.h</a>><br><br> int closedir(DIR *</tt><i>dirp</i><tt>);<br></tt></code></p></blockquote><h4><a name="tag_03_81_03"></a>DESCRIPTION</h4><blockquote><p>The <i>closedir</i>() function shall close the directory stream referred to by the argument <i>dirp</i>. Upon return, the valueof <i>dirp</i> may no longer point to an accessible object of the type <b>DIR</b>. If a file descriptor is used to implement type<b>DIR</b>, that file descriptor shall be closed.</p></blockquote><h4><a name="tag_03_81_04"></a>RETURN VALUE</h4><blockquote><p>Upon successful completion, <i>closedir</i>() shall return 0; otherwise, -1 shall be returned and <i>errno</i> set to indicatethe error.</p></blockquote><h4><a name="tag_03_81_05"></a>ERRORS</h4><blockquote><p>The <i>closedir</i>() function may fail if:</p><dl compact><dt>[EBADF]</dt><dd>The <i>dirp</i> argument does not refer to an open directory stream.</dd><dt>[EINTR]</dt><dd>The <i>closedir</i>() function was interrupted by a signal.</dd></dl></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_03_81_06"></a>EXAMPLES</h4><blockquote><h5><a name="tag_03_81_06_01"></a>Closing a Directory Stream</h5><p>The following program fragment demonstrates how the <i>closedir</i>() function is used.</p><pre><tt>... DIR *dir; struct dirent *dp;... if ((dir = opendir (".")) == NULL) {... }<br> while ((dp = readdir (dir)) != NULL) {... }<br> closedir(dir);...</tt></pre></blockquote><h4><a name="tag_03_81_07"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_81_08"></a>RATIONALE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_81_09"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_81_10"></a>SEE ALSO</h4><blockquote><p><a href="opendir.html"><i>opendir</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/dirent.h.html"><i><dirent.h></i></a></p></blockquote><h4><a name="tag_03_81_11"></a>CHANGE HISTORY</h4><blockquote><p>First released in Issue 2.</p></blockquote><h4><a name="tag_03_81_12"></a>Issue 6</h4><blockquote><p>In the SYNOPSIS, the optional include of the <a href="../basedefs/sys/types.h.html"><i><sys/types.h></i></a> header isremoved.</p><p>The following new requirements on POSIX implementations derive from alignment with the Single UNIX Specification:</p><ul><li><p>The requirement to include <a href="../basedefs/sys/types.h.html"><i><sys/types.h></i></a> has been removed. Although <ahref="../basedefs/sys/types.h.html"><i><sys/types.h></i></a> was required for conforming implementations of previous POSIXspecifications, it was not required for UNIX applications.</p></li><li><p>The [EINTR] error condition is added as an optional error condition.</p></li></ul></blockquote><div class="box"><em>End of informative text.</em></div><hr><hr size="2" noshade><center><font size="2"><!--footer start-->UNIX ® is a registered Trademark of The Open Group.<br>POSIX ® is a registered Trademark of The IEEE.<br>[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href="../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>]</font></center><!--footer end--><hr size="2" noshade></body></html>⌨️ 快捷键说明
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