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  <title>FatFs - f_size</title>
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  <div class="para func">
  <h2>f_size</h2>
  <p>The f_size function gets the size of a file.</p>
  <pre>
  FSIZE_t f_size (
    FIL* <span class="arg">fp</span>   <span class="c">/* [IN] File object */</span>
  );
  </pre>
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  <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>Returns the size of the file in unit of byte.</p>
  </div>
  
  
  <div class="para desc">
  <h4>Description</h4>
  <p>In this revision, the <tt>f_size</tt> function is implemented as a macro. It does not have any validation and mutual exclusion.</p>
  <pre>
  <span class="k">#define</span> f_size(fp) ((fp)->obj.objsize)
  </pre>
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  <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>
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