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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>calloc</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 Memory</a> &gt; <a href=    "calloc.html">calloc</a>  </div>  <div class="name-format">    calloc  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  #include &lt;stdlib.h&gt;  void* calloc( size_t num, size_t size );</pre>  <p>The calloc() function returns a pointer to space for an array of  <em>num</em> objects, each of size <em>size</em>. The newly allocated  memory is initialized to zero.</p>  <p>calloc() returns <strong>NULL</strong> if there is an error.</p>  <div class="related-name-format">    Related topics:  </div>  <div class="related-content">    <a href="free.html">free</a><br>    <a href="malloc.html">malloc</a><br>    <a href="realloc.html">realloc</a>  </div>  </div>  </td>    </tr>  </table></body></html>

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