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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>  <meta name="generator" content=  "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">  <title>ldexp</title>  <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table>  <tr>  <td>  <div class="body-content">  <div class="header-box">    <a href="../index.html">cppreference.com</a> &gt; <a href=    "index.html">Standard C Math</a> &gt; <a href=    "ldexp.html">ldexp</a>  </div>  <div class="name-format">    ldexp  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  #include &lt;math.h&gt;  double ldexp( double num, int exp );</pre>  <p>The ldexp() function returns <em>num</em> * (2 ^ <em>exp</em>).  And get this: if an overflow occurs, <strong>HUGE_VAL</strong> is  returned.</p>  <div class="related-name-format">    Related topics:  </div>  <div class="related-content">    <a href="frexp.html">frexp</a><br>    <a href="modf.html">modf</a>  </div>  </div>  </td>    </tr>  </table></body></html>

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