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17<title>Debugging with GDB: close</title>
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70<a name="close-1"></a>
71<h4 class="unnumberedsubsubsec">close</h4>
72<a name="index-close_002c-file_002di_002fo-system-call"></a>
73
74<dl compact="compact">
75<dt>Synopsis:</dt>
76<dd><div class="smallexample">
77<pre class="smallexample">int close(int fd);
78</pre></div>
79
80</dd>
81<dt>Request:</dt>
82<dd><p>&lsquo;<samp>Fclose,<var>fd</var></samp>&rsquo;
83</p>
84</dd>
85<dt>Return value:</dt>
86<dd><p><code>close</code> returns zero on success, or -1 if an error occurred.
87</p>
88</dd>
89<dt>Errors:</dt>
90<dd>
91<dl compact="compact">
92<dt><code>EBADF</code></dt>
93<dd><p><var>fd</var> isn&rsquo;t a valid open file descriptor.
94</p>
95</dd>
96<dt><code>EINTR</code></dt>
97<dd><p>The call was interrupted by the user.
98</p></dd>
99</dl>
100
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