📄 sigemptyset.html

📁 unix 下的C开发手册,还用详细的例程。
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>sigemptyset</title></head><body bgcolor=white><center><font size=2>The Single UNIX &reg; Specification, Version 2<br>Copyright &copy; 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_008_615">&nbsp;</a>NAME</h4><blockquote>sigemptyset - initialise and empty a signal set</blockquote><h4><a name = "tag_000_008_616">&nbsp;</a>SYNOPSIS</h4><blockquote><pre><code>#include &lt;<a href="signal.h.html">signal.h</a>&gt;int sigemptyset(sigset_t *<i>set</i>);</code></pre></blockquote><h4><a name = "tag_000_008_617">&nbsp;</a>DESCRIPTION</h4><blockquote>The<i>sigemptyset()</i>function initialises the signal set pointed to by <i>set</i>,such that all signalsdefined in this document are excluded.</blockquote><h4><a name = "tag_000_008_618">&nbsp;</a>RETURN VALUE</h4><blockquote>Upon successful completion,<i>sigemptyset()</i>returns 0.  Otherwise, it returns -1 and sets<i>errno</i>to indicate the error.</blockquote><h4><a name = "tag_000_008_619">&nbsp;</a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_000_008_620">&nbsp;</a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_621">&nbsp;</a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_622">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_623">&nbsp;</a>SEE ALSO</h4><blockquote><i><a href="sigaction.html">sigaction()</a></i>,<i><a href="sigaddset.html">sigaddset()</a></i>,<i><a href="sigdelset.html">sigdelset()</a></i>,<i><a href="sigfillset.html">sigfillset()</a></i>,<i><a href="sigismember.html">sigismember()</a></i>,<i><a href="sigpending.html">sigpending()</a></i>,<i><a href="sigprocmask.html">sigprocmask()</a></i>,<i><a href="sigsuspend.html">sigsuspend()</a></i>,<i><a href="signal.h.html">&lt;signal.h&gt;</a></i>.</blockquote><h4>DERIVATION</h4><blockquote>Derived from the POSIX.1-1988 standard.</blockquote><hr size=2 noshade><center><font size=2>UNIX &reg; is a registered Trademark of The Open Group.<br>Copyright &copy; 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>
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