The Perl Toolchain Summit needs more sponsors. If your company depends on Perl, please support this very important event.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
 lang="en" dir="ltr">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>
    memcpy    [C++ Reference]
  </title>

  <meta name="generator" content="DokuWiki Release 2009-12-25c &quot;Lemming&quot;" />
<meta name="robots" content="index,follow" />
<meta name="date" content="2008-10-14T15:42:02-0700" />
<meta name="keywords" content="c,string,memcpy" />
<link rel="search" type="application/opensearchdescription+xml" href="/wiki/lib/exe/opensearch.php" title="C++ Reference" />
<link rel="start" href="/wiki/" />
<link rel="contents" href="/wiki/c/string/memcpy?do=index" title="Index" />
<link rel="alternate" type="application/rss+xml" title="Recent Changes" href="/wiki/feed.php" />
<link rel="alternate" type="application/rss+xml" title="Current Namespace" href="/wiki/feed.php?mode=list&amp;ns=c:string" />
<link rel="edit" title="Edit this page" href="/wiki/c/string/memcpy?do=edit" />
<link rel="alternate" type="text/html" title="Plain HTML" href="/wiki/_export/xhtml/c/string/memcpy" />
<link rel="alternate" type="text/plain" title="Wiki Markup" href="/wiki/_export/raw/c/string/memcpy" />
<link rel="canonical" href="http://www.cppreference.com/wiki/c/string/memcpy" />
<link rel="stylesheet" media="all" type="text/css" href="/wiki/lib/exe/css.php?s=all&amp;t=custom1&amp;tseed=1272971091" />
<link rel="stylesheet" media="screen" type="text/css" href="/wiki/lib/exe/css.php?t=custom1&amp;tseed=1272971091" />
<link rel="stylesheet" media="print" type="text/css" href="/wiki/lib/exe/css.php?s=print&amp;t=custom1&amp;tseed=1272971091" />
<script type="text/javascript" charset="utf-8" ><!--//--><![CDATA[//><!--
var NS='c:string';var JSINFO = {"id":"c:string:memcpy","namespace":"c:string"};
//--><!]]></script>
<script type="text/javascript" charset="utf-8" src="/wiki/lib/exe/js.php?tseed=1272971091" ></script>

  <link rel="shortcut icon" href="/wiki/lib/tpl/custom1/images/favicon.png" />

  </head>

<body>
<div class="dokuwiki">
  
  <div class="stylehead">

    <div class="breadcrumbs">
      <span class="bchead">You are here: </span><a href="../../start.html"  title="start">C++ Reference</a> &raquo; <a href="../../c/start.html"  title="c:start">The Standard C Library</a> &raquo; <a href="../../c/string/start.html"  title="c:string:start">Standard C String and Character</a> &raquo; <a href="../../c/string/memcpy.html"  title="c:string:memcpy">memcpy</a>    </div>
    
  </div>


  
  
  <div class="page">

    <script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-2828341-1";
urchinTracker();
</script>
    <!-- wikipage start -->
    


<h2><a name="memcpy" id="memcpy">memcpy</a></h2>
<div class="level2">

<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;">    <span class="co2">#include &lt;cstring&gt;</span>
    <span class="kw4">void</span> <span class="sy0">*</span>memcpy<span class="br0">&#40;</span> <span class="kw4">void</span> <span class="sy0">*</span>to<span class="sy0">,</span> <span class="kw4">const</span> <span class="kw4">void</span> <span class="sy0">*</span>from<span class="sy0">,</span> size_t count <span class="br0">&#41;</span><span class="sy0">;</span></pre>
<p>
The function memcpy() copies <em>count</em> characters from the array <em>from</em> to the array <em>to</em>. 
</p>

<p>
The return value of memcpy() is <em>to</em>. 
</p>

<p>
The behavior of memcpy() is undefined if <em>to</em> and <em>from</em> overlap.
</p>

<p>
Related Topics: <a href="../../c/string/memchr.html" class="wikilink1" title="c:string:memchr">memchr</a>, <a href="../../c/string/memcmp.html" class="wikilink1" title="c:string:memcmp">memcmp</a>, <a href="../../c/string/memmove.html" class="wikilink1" title="c:string:memmove">memmove</a>, <a href="../../c/string/memset.html" class="wikilink1" title="c:string:memset">memset</a>, <a href="../../c/string/strcpy.html" class="wikilink1" title="c:string:strcpy">strcpy</a>, <a href="../../c/string/strlen.html" class="wikilink1" title="c:string:strlen">strlen</a>, <a href="../../c/string/strncpy.html" class="wikilink1" title="c:string:strncpy">strncpy</a>
</p>

</div>

    <!-- wikipage stop -->
  </div>

  <div class="clearer">&nbsp;</div>

  
  <div class="stylefoot">

    <div class="meta">
      <div class="user">
              </div>
      <!--
      <div class="doc">
        c/string/memcpy.txt &middot; Last modified: 10/14/2008 15:42 (external edit)      </div>
      -->
    </div>

   
    </div></div></body>
</html>