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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>memcpy</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> > <a href= "index.html">Standard C String and Character</a> > <a href= "memcpy.html">memcpy</a> </div> <div class="name-format"> memcpy </div> <div class="syntax-name-format"> Syntax: </div> <pre class="syntax-box"> #include <string.h> void *memcpy( void *to, const void *from, size_t count );</pre> <p>The function memcpy() copies <em>count</em> characters from the array <em>from</em> to the array <em>to</em>. The return value of memcpy() is <em>to</em>. The behavior of memcpy() is undefined if <em>to</em> and <em>from</em> overlap.</p> <div class="related-name-format"> Related topics: </div> <div class="related-content"> <a href="memchr.html">memchr</a><br> <a href="memcmp.html">memcmp</a><br> <a href="memmove.html">memmove</a><br> <a href="memset.html">memset</a><br> <a href="strcpy.html">strcpy</a><br> <a href="strlen.html">strlen</a><br> <a href="strncpy.html">strncpy</a> </div> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
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