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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>memcmp</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= "memcmp.html">memcmp</a> </div> <div class="name-format"> memcmp </div> <div class="syntax-name-format"> Syntax: </div> <pre class="syntax-box"> #include <string.h> int memcmp( const void *buffer1, const void *buffer2, size_t count );</pre> <p>The function memcmp() compares the first <em>count</em> characters of <em>buffer1</em> and <em>buffer2</em>. The return values are as follows:</p> <table class="code-table"> <tr> <th class="code-table-th">Value</th> <th class="code-table-th">Explanation</th> </tr> <tr> <td class="code-table-td">less than 0</td> <td class="code-table-td">buffer1 is less than buffer2</td> </tr> <tr> <td class="code-table-td">equal to 0</td> <td class="code-table-td">buffer1 is equal to buffer2</td> </tr> <tr> <td class="code-table-td">greater than 0</td> <td class="code-table-td">buffer1 is greater than buffer2</td> </tr> </table> <div class="related-name-format"> Related topics: </div> <div class="related-content"> <a href="memchr.html">memchr</a><br> <a href="memcpy.html">memcpy</a><br> <a href="memset.html">memset</a><br> <a href="strcmp.html">strcmp</a> </div> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
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