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d2c0dea556
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@91 ebee16cc-31ac-478f-84a7-5cbb03baadba
64 lines
2.2 KiB
HTML
64 lines
2.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<link rel="up" title="FatFs" href="../00index_e.html">
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<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs - f_gets</title>
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</head>
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<body>
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<div class="para">
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<h2>f_gets</h2>
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<p>The f_gets reads a string from the file.</p>
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<pre>
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char* f_gets (
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char* <em>Str</em>, /* Read buffer */
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int <em>Size</em>, /* Size of the read buffer */
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FIL* <em>FileObject</em> /* File object */
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);
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</pre>
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</div>
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<div class="para">
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<h4>Parameters</h4>
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<dl class="par">
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<dt>Str</dt>
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<dd>Pointer to read buffer to store the read string.</dd>
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<dt>Size</dt>
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<dd>Size of the read buffer.</dd>
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<dt>FileObject</dt>
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<dd>Pointer to the open file object structure.</dd>
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</dl>
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</div>
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<div class="para">
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<h4>Return Values</h4>
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<p>When the function succeeded, <tt>Str</tt> will be returuned.</p>
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</div>
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<div class="para">
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<h4>Description</h4>
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<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>
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</div>
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<div class="para">
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<h4>QuickInfo</h4>
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<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>
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</div>
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<div class="para">
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<h4>See Also</h4>
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<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>
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</div>
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<p class="foot"><a href="../00index_e.html">Return</a></p>
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</body>
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</html>
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