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<a name="rewind_002d_002d_002dreinitialize-a-file-or-stream"></a>
<h3 class="section">4.54 <code>rewind</code>&mdash;reinitialize a file or stream</h3>
<a name="index-rewind"></a>
<a name="index-_005frewind_005fr"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;stdio.h&gt;
void rewind(FILE *<var>fp</var>);
void _rewind_r(struct _reent *<var>ptr</var>, FILE *<var>fp</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>rewind</code> returns the file position indicator (if any) for the file
or stream identified by <var>fp</var> to the beginning of the file.  It also
clears any error indicator and flushes any pending output.
</p>
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<p><strong>Returns</strong><br>
<code>rewind</code> does not return a result.
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<p><strong>Portability</strong><br>
ANSI C requires <code>rewind</code>.
</p>
<p>No supporting OS subroutines are required.
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