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<a name="wcslcat_002d_002d_002dconcatenate-wide_002dcharacter-strings-to-specified-length"></a>
<h3 class="section">6.14 <code>wcslcat</code>—concatenate wide-character strings to specified length</h3>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include <wchar.h>
size_t wcslcat(wchar_t *<var>dst</var>, const wchar_t *<var>src</var>, size_t <var>siz</var>);
</pre></div>
<p><strong>Description</strong><br>
The <code>wcslcat</code> function appends wide characters from <var>src</var> to
end of the <var>dst</var> wide-character string so that the resultant
wide-character string is not more than <var>siz</var> wide characters
including the terminating null wide-character code. A terminating
null wide character is always added unless <var>siz</var> is 0. Thus,
the maximum number of wide characters that can be appended from
<var>src</var> is <var>siz</var> - 1. If copying takes place between objects
that overlap, the behaviour is undefined.
</p>
<br>
<p><strong>Returns</strong><br>
Wide-character string length of initial <var>dst</var> plus the
wide-character string length of <var>src</var> (does not include
terminating null wide-characters). If the return value is
greater than or equal to <var>siz</var>, then truncation occurred and
not all wide characters from <var>src</var> were appended.
</p>
<br>
<p><strong>Portability</strong><br>
No supporting OS subroutines are required.
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