120 lines
4.1 KiB
HTML
120 lines
4.1 KiB
HTML
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>wcsncmp</title>
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<basefont size="3"> <a name="wcsncmp"></a> <a name="tag_03_835"></a><!-- wcsncmp -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_03_835_01"></a>NAME</h4>
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<blockquote>wcsncmp - compare part of two wide-character strings</blockquote>
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<h4><a name="tag_03_835_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<p><code><tt>#include <<a href="../basedefs/wchar.h.html">wchar.h</a>><br>
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<br>
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int wcsncmp(const wchar_t *</tt><i>ws1</i><tt>, const wchar_t *</tt><i>ws2</i><tt>, size_t</tt> <i>n</i><tt>);<br>
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</tt></code></p>
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</blockquote>
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<h4><a name="tag_03_835_03"></a>DESCRIPTION</h4>
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<blockquote>
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<div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
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border="0"> The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
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requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
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the ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div>
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<p>The <i>wcsncmp</i>() function shall compare not more than <i>n</i> wide-character codes (wide-character codes that follow a null
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wide-character code are not compared) from the array pointed to by <i>ws1</i> to the array pointed to by <i>ws2</i>.</p>
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<p>The sign of a non-zero return value shall be determined by the sign of the difference between the values of the first pair of
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wide-character codes that differ in the objects being compared.</p>
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</blockquote>
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<h4><a name="tag_03_835_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>Upon successful completion, <i>wcsncmp</i>() shall return an integer greater than, equal to, or less than 0, if the possibly
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null-terminated array pointed to by <i>ws1</i> is greater than, equal to, or less than the possibly null-terminated array pointed
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to by <i>ws2</i>, respectively.</p>
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</blockquote>
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<h4><a name="tag_03_835_05"></a>ERRORS</h4>
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<blockquote>
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<p>No errors are defined.</p>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_835_06"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_835_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_835_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_835_09"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_835_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="wcscmp.html"><i>wcscmp</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/wchar.h.html"><i><wchar.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_835_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 4. Derived from the MSE working draft.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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