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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [FileSystem/] [FatFs-0.7e/] [doc/] [en/] [gets.html] - Rev 606

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta http-equiv="Content-Style-Type" content="text/css">
<link rel="up" title="FatFs" href="../00index_e.html">
<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
<title>FatFs - f_gets</title>
</head>
 
<body>
 
<div class="para">
<h2>f_gets</h2>
<p>The f_gets reads a string from the file.</p>
<pre>
char* f_gets (
  char* <em>Str</em>,        /* Read buffer */
  int <em>Size</em>,         /* Size of the read buffer */
  FIL* <em>FileObject</em>   /* File object */
);
</pre>
</div>
 
<div class="para">
<h4>Parameters</h4>
<dl class="par">
<dt>Str</dt>
<dd>Pointer to read buffer to store the read string.</dd>
<dt>Size</dt>
<dd>Size of the read buffer.</dd>
<dt>FileObject</dt>
<dd>Pointer to the open file object structure.</dd>
</dl>
</div>
 
 
<div class="para">
<h4>Return Values</h4>
<p>When the function succeeded, <tt>Str</tt> will be returuned.</p>
</div>
 
 
<div class="para">
<h4>Description</h4>
<p>The f_gets() is a wrapper function of <a href="read.html">f_read()</a>. The read operation continues until a <tt>'\n'</tt> is stored, reached end of file or buffer is filled with Size - 1 characters. The read string is terminated with a <tt>'\0'</tt>. When the file has reached end of the file or any error occured during read operation, f_gets() returns a <tt>NULL</tt>. The EOF and error status can be examined with <tt>f_eof()</tt> and <tt>f_error()</tt> macro.</p>
</div>
 
 
<div class="para">
<h4>QuickInfo</h4>
<p>Available when <tt>_USE_STRFUNC</tt> is 1 or 2. When it is set to 2, <tt>'\r'</tt>s contained in the file are stripped out.</p>
</div>
 
 
<div class="para">
<h4>See Also</h4>
<p><tt><a href="open.html">f_open</a>, <a href="read.html">f_read</a>, <a href="putc.html">f_putc</a>, <a href="puts.html">f_puts</a>, <a href="printf.html">f_printf</a>, <a href="close.html">f_close</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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