getwd.html
来自「unix 下的C开发手册,还用详细的例程。」· HTML 代码 · 共 62 行
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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>getwd</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><a name = "tag_000_005_824"> </a>NAME</h4><blockquote>getwd - get the current working directory pathname</blockquote><h4><a name = "tag_000_005_825"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="unistd.h.html">unistd.h</a>>char *getwd(char *<i>path_name</i>);</code></pre></blockquote><h4><a name = "tag_000_005_826"> </a>DESCRIPTION</h4><blockquote>The<i>getwd()</i>function determines an absolute pathname of the current working directory ofthe calling process, and copies that pathname into the array pointed to by the<i>path_name</i> argument.<p>If the length of the pathname of the current working directoryis greater than ({PATH_MAX} + 1) including the null byte,<i>getwd()</i>fails and returns a null pointer.</blockquote><h4><a name = "tag_000_005_827"> </a>RETURN VALUE</h4><blockquote>Upon successful completion, a pointer to the string containing the absolutepathname of the current working directory is returned. Otherwise,<i>getwd()</i>returns a null pointer and the contents of the array pointed to by<i>path_name</i> are undefined.</blockquote><h4><a name = "tag_000_005_828"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_000_005_829"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_005_830"> </a>APPLICATION USAGE</h4><blockquote>For portability to implementations conforming to earlier versions of thisspecification,<i><a href="getcwd.html">getcwd()</a></i>is preferred over this function.</blockquote><h4><a name = "tag_000_005_831"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_005_832"> </a>SEE ALSO</h4><blockquote><i><a href="getcwd.html">getcwd()</a></i>,<i><a href="unistd.h.html"><unistd.h></a></i>.</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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