📄 strcmp.html

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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>strcmp</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 String and Character</a> &gt; <a href=    "strcmp.html">strcmp</a>  </div>  <div class="name-format">    strcmp  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  #include &lt;string.h&gt;  int strcmp( const char *str1, const char *str2 );</pre>  <p>The function strcmp() compares <em>str1</em> and <em>str2</em>,  then returns:</p>  <table class="code-table">    <tr>      <th class="code-table-th">Return 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">&#39;&#39;str1&#39;&#39; is less than      &#39;&#39;str2&#39;&#39;</td>    </tr>    <tr>      <td class="code-table-td">equal to 0</td>      <td class="code-table-td">&#39;&#39;str1&#39;&#39; is equal to      &#39;&#39;str2&#39;&#39;</td>    </tr>    <tr>      <td class="code-table-td">greater than 0</td>      <td class="code-table-td">&#39;&#39;str1&#39;&#39; is greater      than &#39;&#39;str2&#39;&#39;</td>    </tr>  </table>  <p>For example:</p>  <pre class="example-code">   printf( &quot;Enter your name: &quot; );   scanf( &quot;%s&quot;, name );   if( strcmp( name, &quot;Mary&quot; ) == 0 ) {     printf( &quot;Hello, Dr. Mary!\n&quot; );   }        </pre>  <p>Note that if <em>str1</em> or <em>str2</em> are missing a  null-termination character, then strcmp() may not produce valid  results.  For a similar (and safer) function that includes explicit  bounds checking, see <a href="strncmp.html">strncmp()</a>.</p>  <div class="related-name-format">    Related topics:  </div>  <div class="related-content">    <a href="memcmp.html">memcmp</a><br>    <a href="strcat.html">strcat</a><br>    <a href="strchr.html">strchr</a><br>    <a href="strcoll.html">strcoll</a><br>    <a href="strcpy.html">strcpy</a><br>    <a href="strlen.html">strlen</a><br>    <a href="strncmp.html">strncmp</a><br>    <a href="strxfrm.html">strxfrm</a>  </div>  </div>  </td>    </tr>  </table></body></html>
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