1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 2<html lang="en"> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 5<meta http-equiv="Content-Style-Type" content="text/css"> 6<link rel="up" title="FatFs" href="../00index_e.html"> 7<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/eof.html"> 8<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default"> 9<title>FatFs - f_eof</title> 10</head> 11 12<body> 13 14<div class="para func"> 15<h2>f_eof</h2> 16<p>The f_eof function tests for end-of-file on a file.</p> 17<pre> 18int f_eof ( 19 FIL* <span class="arg">fp</span> <span class="c">/* [IN] File object */</span> 20); 21</pre> 22</div> 23 24 25<div class="para arg"> 26<h4>Parameters</h4> 27<dl class="par"> 28<dt>fp</dt> 29<dd>Pointer to the open file object structure.</dd> 30</dl> 31</div> 32 33 34<div class="para ret"> 35<h4>Return Values</h4> 36<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> 37</div> 38 39 40<div class="para desc"> 41<h4>Description</h4> 42<p>In this revision, this function is implemented as a macro. It does not have any validation and mutual exclusion.</p> 43<pre> 44<span class="k">#define</span> f_eof(fp) ((int)((fp)->fptr == (fp)->fsize)) 45</pre> 46</div> 47 48 49<div class="para comp"> 50<h4>QuickInfo</h4> 51<p>Always available.</p> 52</div> 53 54 55<div class="para ref"> 56<h4>See Also</h4> 57<p><tt><a href="open.html">f_open</a>, <a href="lseek.html">f_lseek</a>, <a href="sfile.html">FIL</a></tt></p> 58</div> 59 60<p class="foot"><a href="../00index_e.html">Return</a></p> 61</body> 62</html> 63