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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<link rel="up" title="FatFs" href="../00index_e.html">
<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/eof.html">
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<title>FatFs - f_eof</title>
</head>
<body>
<div class="para func">
<h2>f_eof</h2>
<p>The f_eof function tests for end-of-file on a file.</p>
<pre>
int f_eof (
FIL* <span class="arg">fp</span> <span class="c">/* [IN] File object */</span>
);
</pre>
</div>
<div class="para arg">
<h4>Parameters</h4>
<dl class="par">
<dt>fp</dt>
<dd>Pointer to the open file object structure.</dd>
</dl>
</div>
<div class="para ret">
<h4>Return Values</h4>
<p>The <tt>f_eof</tt> function returns a non-zero value if the read/write pointer has reached end of the file; otherwise it returns a zero.</p>
</div>
<div class="para desc">
<h4>Description</h4>
<p>In this revision, this function is implemented as a macro. It does not have any validation and mutual exclusion.</p>
<pre>
<span class="k">#define</span> f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
</pre>
</div>
<div class="para comp">
<h4>QuickInfo</h4>
<p>Always available.</p>
</div>
<div class="para ref">
<h4>See Also</h4>
<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p>
</div>
<p class="foot"><a href="../00index_e.html">Return</a></p>
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