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<hr>
<a name="vfwprintf_002c-vwprintf_002c-vswprintf_002d_002d_002dwide-character-format-argument-list"></a>
<h3 class="section">4.70 <code>vfwprintf</code>, <code>vwprintf</code>, <code>vswprintf</code>&mdash;wide character format argument list</h3>
<a name="index-vfwprintf"></a>
<a name="index-_005fvfwprintf_005fr"></a>
<a name="index-vwprintf"></a>
<a name="index-_005fvwprintf_005fr"></a>
<a name="index-vswprintf"></a>
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<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;stdio.h&gt;
#include &lt;stdarg.h&gt;
#include &lt;wchar.h&gt;
int vwprintf(const wchar_t *__restrict <var>fmt</var>, va_list <var>list</var>);
int vfwprintf(FILE *__restrict <var>fp</var>,
    const wchar_t *__restrict <var>fmt</var>, va_list <var>list</var>);
int vswprintf(wchar_t * __restrict <var>str</var>, size_t <var>size</var>,
    const wchar_t *__ restrict <var>fmt</var>, va_list <var>list</var>);

int _vwprintf_r(struct _reent *<var>reent</var>, const wchar_t *<var>fmt</var>,
    va_list <var>list</var>);
int _vfwprintf_r(struct _reent *<var>reent</var>, FILE *<var>fp</var>,
    const wchar_t *<var>fmt</var>, va_list <var>list</var>);
int _vswprintf_r(struct _reent *<var>reent</var>, wchar_t *<var>str</var>,
    size_t <var>size</var>, const wchar_t *<var>fmt</var>, va_list <var>list</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>vwprintf</code>, <code>vfwprintf</code> and <code>vswprintf</code> are (respectively) variants
of <code>wprintf</code>, <code>fwprintf</code> and <code>swprintf</code>.  They differ only in allowing
their caller to pass the variable argument list as a <code>va_list</code> object
(initialized by <code>va_start</code>) rather than directly accepting a variable
number of arguments.  The caller is responsible for calling <code>va_end</code>.
</p>
<p><code>_vwprintf_r</code>, <code>_vfwprintf_r</code> and <code>_vswprintf_r</code> are reentrant
versions of the above.
</p>
<br>
<p><strong>Returns</strong><br>
The return values are consistent with the corresponding functions.
</p>
<br>
<p><strong>Portability</strong><br>
POSIX-1.2008 with extensions; C99 (compliant except for POSIX extensions).
</p>
<p>Supporting OS subroutines required: <code>close</code>, <code>fstat</code>, <code>isatty</code>,
<code>lseek</code>, <code>read</code>, <code>sbrk</code>, <code>write</code>.
</p>
<br>
<p><strong>See Also</strong><br>
<code>wprintf</code>, <code>fwprintf</code> and <code>swprintf</code>.
</p>
<br>




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