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<a name="wcscasecmp_002d_002d_002dcase_002dinsensitive-wide-character-string-compare"></a>
<h3 class="section">5.47 <code>wcscasecmp</code>&mdash;case-insensitive wide character string compare</h3>
<a name="index-wcscasecmp"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;wchar.h&gt;
int wcscasecmp(const wchar_t *<var>a</var>, const wchar_t *<var>b</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>wcscasecmp</code> compares the wide character string at <var>a</var> to
the wide character string at <var>b</var> in a case-insensitive manner.
</p>
<br>
<p><strong>Returns</strong><br>
</p>
<p>If <code>*<var>a</var></code> sorts lexicographically after <code>*<var>b</var></code> (after
both are converted to uppercase), <code>wcscasecmp</code> returns a
number greater than zero.  If the two strings match,
<code>wcscasecmp</code> returns zero.  If <code>*<var>a</var></code> sorts
lexicographically before <code>*<var>b</var></code>, <code>wcscasecmp</code> returns a
number less than zero.
</p>
<br>
<p><strong>Portability</strong><br>
POSIX-1.2008
</p>
<p><code>wcscasecmp</code> requires no supporting OS subroutines. It uses
tolower() from elsewhere in this library.
</p>
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