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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><setjmp.h></title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="<setjmp.h>"></a> <a name="tag_13_42"></a><!-- <setjmp.h> --> <!--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_13_42_01"></a>NAME</h4><blockquote>setjmp.h - stack environment declarations</blockquote><h4><a name="tag_13_42_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><p><tt>#include <setjmp.h></tt></p></blockquote><h4><a name="tag_13_42_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"> Some of the functionality described on this reference page extends the ISO C standard. Applications shall definethe appropriate feature test macro (see the System Interfaces volume of IEEE Std 1003.1-2001, <a href="../functions/xsh_chap02_02.html">Section 2.2, The Compilation Environment</a>) to enable the visibility of these symbols in thisheader. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div><p>The <i><setjmp.h></i> header shall define the array types <b>jmp_buf</b> and <sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> <b>sigjmp_buf</b>.<img src="../images/opt-end.gif" alt="[Option End]" border="0"></p><p>The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.</p><pre><tt>void longjmp(jmp_buf, int);<sup>[<a href="javascript:open_code('CX')">CX</a>]</sup><img src="../images/opt-start.gif" alt="[Option Start]" border="0">void siglongjmp(sigjmp_buf, int);<img src="../images/opt-end.gif" alt="[Option End]" border="0"><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup><img src="../images/opt-start.gif" alt="[Option Start]" border="0">void _longjmp(jmp_buf, int);<img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></pre><p>The following may be declared as a function, or defined as a macro, or both. Function prototypes shall be provided.</p><pre><tt>int setjmp(jmp_buf);<sup>[<a href="javascript:open_code('CX')">CX</a>]</sup><img src="../images/opt-start.gif" alt="[Option Start]" border="0">int sigsetjmp(sigjmp_buf, int);<img src="../images/opt-end.gif" alt="[Option End]" border="0"><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup><img src="../images/opt-start.gif" alt="[Option Start]" border="0">int _setjmp(jmp_buf);<img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></pre></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_13_42_04"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_13_42_05"></a>RATIONALE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_13_42_06"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_13_42_07"></a>SEE ALSO</h4><blockquote><p>The System Interfaces volume of IEEE Std 1003.1-2001, <a href="../functions/longjmp.html"><i>longjmp</i>()</a>, <ahref="../functions/_longjmp.html"><i>_longjmp</i>()</a>, <a href="../functions/setjmp.html"><i>setjmp</i>()</a>, <a href="../functions/siglongjmp.html"><i>siglongjmp</i>()</a>, <a href="../functions/sigsetjmp.html"><i>sigsetjmp</i>()</a></p></blockquote><h4><a name="tag_13_42_08"></a>CHANGE HISTORY</h4><blockquote><p>First released in Issue 1.</p></blockquote><h4><a name="tag_13_42_09"></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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