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    <a href="../index-2.html">cppreference.com</a> &gt; <a href=
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    "setvbuf.html">setvbuf</a>
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    setvbuf
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    Syntax:
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  #include &lt;cstdio&gt;
  int setvbuf( FILE *stream, char *buffer, int mode, size_t size );
</pre>

  <p>The function setvbuf() sets the buffer for <em>stream</em> to be
  <em>buffer</em>, with a size of <em>size</em>. <em>mode</em> can
  be:</p>

  <ul>
    <li>_IOFBF, which indicates full buffering</li>

    <li>_IOLBF, which means line buffering</li>

    <li>_IONBF, which means no buffering</li>
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    <a href="setbuf.html">setbuf</a>
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