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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>h_errno</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4>NAME</h4><blockquote>h_errno - error return value for network database operations</blockquote><h4>SYNOPSIS</h4><blockquote><pre><code>extern int h_errno;</code></pre></blockquote><h4>DESCRIPTION</h4><blockquote>Refer to<i><a href="endhostent.html">endhostent()</a></i>.<p>The <i><a href="netdb.h.html"><netdb.h></a></i>header provides a declaration of <I>h_errno</I>as a modifiable l-value of type <B>int</B>.The above synopsisis an example; other declarations as modifiable l-valuesof type <B>int</B>may be used in its place.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 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>⌨️ 快捷键说明
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