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freopen [C++ Reference]
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<h2><a name="freopen" id="freopen">freopen</a></h2>
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<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <cstdio></span>
FILE <span class="sy0">*</span>freopen<span class="br0">(</span> <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy0">*</span>fname<span class="sy0">,</span> <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy0">*</span>mode<span class="sy0">,</span> FILE <span class="sy0">*</span>stream <span class="br0">)</span><span class="sy0">;</span></pre>
<p>
The freopen() function is used to reassign an existing stream to a different
file and mode. After a call to this function, the given file stream will refer
to fname with access given by mode. The return value of freopen() is the new
stream, or NULL if there is an error.
</p>
<p>
The mode argument shall be used just as in <a href="../../c/io/fopen.html" class="wikilink1" title="c:io:fopen">fopen</a>.
</p>
<p>
Related Topics: <a href="../../c/io/fclose.html" class="wikilink1" title="c:io:fclose">fclose</a>, <a href="../../c/io/fopen.html" class="wikilink1" title="c:io:fopen">fopen</a>
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