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<title>The GNU Fortran Compiler: FTELL</title>

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<a name="FTELL-_002d_002d_002d-Current-stream-position"></a>
<h3 class="section">9.117 <code>FTELL</code> &mdash; Current stream position</h3>
<a name="index-FTELL"></a>
<a name="index-file-operation_002c-position-1"></a>

<dl compact="compact">
<dt><em>Description</em>:</dt>
<dd><p>Retrieves the current position within an open file.
</p>
<p>This intrinsic is provided in both subroutine and function forms; however,
only one form can be used in any given program unit.
</p>
</dd>
<dt><em>Standard</em>:</dt>
<dd><p>GNU extension
</p>
</dd>
<dt><em>Class</em>:</dt>
<dd><p>Subroutine, function
</p>
</dd>
<dt><em>Syntax</em>:</dt>
<dd><table>
<tr><td width="80%"><code>CALL FTELL(UNIT, OFFSET)</code></td></tr>
<tr><td width="80%"><code>OFFSET = FTELL(UNIT)</code></td></tr>
</table>

</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>OFFSET</var></td><td width="70%">Shall of type <code>INTEGER</code>.</td></tr>
<tr><td width="15%"><var>UNIT</var></td><td width="70%">Shall of type <code>INTEGER</code>.</td></tr>
</table>

</dd>
<dt><em>Return value</em>:</dt>
<dd><p>In either syntax, <var>OFFSET</var> is set to the current offset of unit
number <var>UNIT</var>, or to <em>-1</em> if the unit is not currently open.
</p>
</dd>
<dt><em>Example</em>:</dt>
<dd><div class="smallexample">
<pre class="smallexample">PROGRAM test_ftell
  INTEGER :: i
  OPEN(10, FILE=&quot;temp.dat&quot;)
  CALL ftell(10,i)
  WRITE(*,*) i
END PROGRAM
</pre></div>

</dd>
<dt><em>See also</em>:</dt>
<dd><p><a href="FSEEK.html#FSEEK">FSEEK</a>
</p></dd>
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