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95 lines
3.9 KiB
HTML
95 lines
3.9 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>wmemcmp (The Red Hat newlib C Library)</title>
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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="Wchar-strings.html#Wchar-strings" rel="up" title="Wchar strings">
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<link href="wmemcpy.html#wmemcpy" rel="next" title="wmemcpy">
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</head>
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<body lang="en">
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<a name="wmemcmp"></a>
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<div class="header">
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<p>
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Next: <a href="wmemcpy.html#wmemcpy" accesskey="n" rel="next">wmemcpy</a>, Previous: <a href="wmemchr.html#wmemchr" accesskey="p" rel="prev">wmemchr</a>, Up: <a href="Wchar-strings.html#Wchar-strings" accesskey="u" rel="up">Wchar 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="wmemcmp_002d_002d_002dcompare-wide-characters-in-memory"></a>
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<h3 class="section">6.2 <code>wmemcmp</code>—compare wide characters in memory</h3>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#include <wchar.h>
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int wmemcmp(const wchar_t *<var>s1</var>, const wchar_t *<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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The <code>wmemcmp</code> function compares the first <var>n</var> wide characters of the
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object pointed to by <var>s1</var> to the first <var>n</var> wide characters of the
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object pointed to by <var>s2</var>. This function is not affected by locale
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and all wchar_t values are treated identically. The null wide character
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and wchar_t values not corresponding to valid characters are not treated
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specially.
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</p>
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<p>If <var>n</var> is zero, <var>s1</var> and <var>s2</var> must be a valid pointers and the
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function behaves as if the two objects compare equal.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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The <code>wmemcmp</code> function returns an integer greater than, equal to,
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or less than zero, accordingly as the object pointed to by <var>s1</var> is
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greater than, equal to, or less than the object 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>wmemcmp</code> is ISO/IEC 9899/AMD1:1995 (ISO C).
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</p>
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<p>No supporting OS subroutines are required.
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</p>
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<br>
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</html>
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