You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.6 KiB
HTML
91 lines
3.6 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>strncmp (The Red Hat newlib C Library)</title>
|
|
|
|
<meta name="description" content="strncmp (The Red Hat newlib C Library)">
|
|
<meta name="keywords" content="strncmp (The Red Hat newlib C Library)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
|
|
<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Strings.html#Strings" rel="up" title="Strings">
|
|
<link href="strncpy.html#strncpy" rel="next" title="strncpy">
|
|
<link href="strncat.html#strncat" rel="prev" title="strncat">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style: oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<a name="strncmp"></a>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="strncpy.html#strncpy" accesskey="n" rel="next">strncpy</a>, Previous: <a href="strncat.html#strncat" accesskey="p" rel="prev">strncat</a>, Up: <a href="Strings.html#Strings" accesskey="u" rel="up">Strings</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<a name="strncmp_002d_002d_002dcharacter-string-compare"></a>
|
|
<h3 class="section">5.33 <code>strncmp</code>—character string compare</h3>
|
|
<a name="index-strncmp"></a>
|
|
<p><strong>Synopsis</strong>
|
|
</p><div class="example">
|
|
<pre class="example">#include <string.h>
|
|
int strncmp(const char *<var>a</var>, const char * <var>b</var>, size_t <var>length</var>);
|
|
|
|
</pre></div>
|
|
<p><strong>Description</strong><br>
|
|
<code>strncmp</code> compares up to <var>length</var> characters
|
|
from the string at <var>a</var> to the string at <var>b</var>.
|
|
</p>
|
|
<br>
|
|
<p><strong>Returns</strong><br>
|
|
If <code>*<var>a</var></code> sorts lexicographically after <code>*<var>b</var></code>,
|
|
<code>strncmp</code> returns a number greater than zero. If the two
|
|
strings are equivalent, <code>strncmp</code> returns zero. If <code>*<var>a</var></code>
|
|
sorts lexicographically before <code>*<var>b</var></code>, <code>strncmp</code> returns a
|
|
number less than zero.
|
|
</p>
|
|
<br>
|
|
<p><strong>Portability</strong><br>
|
|
<code>strncmp</code> is ANSI C.
|
|
</p>
|
|
<p><code>strncmp</code> requires no supporting OS subroutines.
|
|
</p>
|
|
<br>
|
|
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|