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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>rewind</title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="rewind"></a> <a name="tag_03_609"></a><!-- rewind --> <!--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_609_01"></a>NAME</h4><blockquote>rewind - reset the file position indicator in a stream</blockquote><h4><a name="tag_03_609_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><p><code><tt>#include <<a href="../basedefs/stdio.h.html">stdio.h</a>><br><br> void rewind(FILE *</tt><i>stream</i><tt>);<br></tt></code></p></blockquote><h4><a name="tag_03_609_03"></a>DESCRIPTION</h4><blockquote><div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"border="0"> The functionality described on this reference page is aligned with the ISO C standard. Any conflict between therequirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers tothe ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div><p>The call:</p><pre><tt>rewind(stream)</tt></pre><p>shall be equivalent to:</p><pre><tt>(void) fseek(stream, 0L, SEEK_SET)</tt></pre><p>except that <i>rewind</i>() shall also clear the error indicator.</p><p><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">Since <i>rewind</i>() does not return a value, an application wishing to detect errors should clear <i>errno</i>, then call<i>rewind</i>(), and if <i>errno</i> is non-zero, assume an error has occurred. <img src="../images/opt-end.gif" alt="[Option End]"border="0"></p></blockquote><h4><a name="tag_03_609_04"></a>RETURN VALUE</h4><blockquote><p>The <i>rewind</i>() function shall not return a value.</p></blockquote><h4><a name="tag_03_609_05"></a>ERRORS</h4><blockquote><p><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0">Refer to <a href="fseek.html"><i>fseek</i>()</a> with the exception of [EINVAL] which does not apply. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></p></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_03_609_06"></a>EXAMPLES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_609_07"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_609_08"></a>RATIONALE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_609_09"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_03_609_10"></a>SEE ALSO</h4><blockquote><p><a href="fseek.html"><i>fseek</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/stdio.h.html"><i><stdio.h></i></a></p></blockquote><h4><a name="tag_03_609_11"></a>CHANGE HISTORY</h4><blockquote><p>First released in Issue 1. Derived from Issue 1 of the SVID.</p></blockquote><h4><a name="tag_03_609_12"></a>Issue 6</h4><blockquote><p>Extensions beyond the ISO C standard are marked.</p></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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