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90 lines
3.4 KiB
HTML
90 lines
3.4 KiB
HTML
4 years ago
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<title>memcmp (The Red Hat newlib C Library)</title>
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<meta name="description" content="memcmp (The Red Hat newlib C Library)">
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<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
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<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Strings.html#Strings" rel="up" title="Strings">
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<link href="memcpy.html#memcpy" rel="next" title="memcpy">
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</head>
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<body lang="en">
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<a name="memcmp"></a>
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<div class="header">
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<p>
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Next: <a href="memcpy.html#memcpy" accesskey="n" rel="next">memcpy</a>, Previous: <a href="memchr.html#memchr" accesskey="p" rel="prev">memchr</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>
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</div>
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<hr>
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<a name="memcmp_002d_002d_002dcompare-two-memory-areas"></a>
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<h3 class="section">5.7 <code>memcmp</code>—compare two memory areas</h3>
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<a name="index-memcmp"></a>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#include <string.h>
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int memcmp(const void *<var>s1</var>, const void *<var>s2</var>, size_t <var>n</var>);
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</pre></div>
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<p><strong>Description</strong><br>
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This function compares not more than <var>n</var> characters of the
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object pointed to by <var>s1</var> with the object pointed to by <var>s2</var>.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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The function returns an integer greater than, equal to or
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less than zero according to whether the object pointed to by
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<var>s1</var> is greater than, equal to or less than the object
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pointed to by <var>s2</var>.
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</p>
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<br>
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<p><strong>Portability</strong><br>
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<code>memcmp</code> is ANSI C.
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</p>
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<p><code>memcmp</code> requires no supporting OS subroutines.
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</p>
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<br>
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