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<a name="viprintf_002c-vfiprintf_002c-vsiprintf_002c-vsniprintf_002c-vasiprintf_002c-vasniprintf_002d_002d_002dformat-argument-list-_0028integer-only_0029"></a>
<h3 class="section">4.74 <code>viprintf</code>, <code>vfiprintf</code>, <code>vsiprintf</code>, <code>vsniprintf</code>, <code>vasiprintf</code>, <code>vasniprintf</code>&mdash;format argument list (integer only)</h3>
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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;
int viprintf(const char *<var>fmt</var>, va_list <var>list</var>);
int vfiprintf(FILE *<var>fp</var>, const char *<var>fmt</var>, va_list <var>list</var>);
int vsiprintf(char *<var>str</var>, const char *<var>fmt</var>, va_list <var>list</var>);
int vsniprintf(char *<var>str</var>, size_t <var>size</var>, const char *<var>fmt</var>,
    va_list <var>list</var>);
int vasiprintf(char **<var>strp</var>, const char *<var>fmt</var>, va_list <var>list</var>);
char *vasniprintf(char *<var>str</var>, size_t *<var>size</var>, const char *<var>fmt</var>,
    va_list <var>list</var>);

int _viprintf_r(struct _reent *<var>reent</var>, const char *<var>fmt</var>,
    va_list <var>list</var>);
int _vfiprintf_r(struct _reent *<var>reent</var>, FILE *<var>fp</var>,
    const char *<var>fmt</var>, va_list <var>list</var>);
int _vsiprintf_r(struct _reent *<var>reent</var>, char *<var>str</var>,
    const char *<var>fmt</var>, va_list <var>list</var>);
int _vsniprintf_r(struct _reent *<var>reent</var>, char *<var>str</var>,
    size_t <var>size</var>, const char *<var>fmt</var>, va_list <var>list</var>);
int _vasiprintf_r(struct _reent *<var>reent</var>, char **<var>str</var>,
    const char *<var>fmt</var>, va_list <var>list</var>);
char *_vasniprintf_r(struct _reent *<var>reent</var>, char *<var>str</var>,
    size_t *<var>size</var>, const char *<var>fmt</var>, va_list <var>list</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>viprintf</code>, <code>vfiprintf</code>, <code>vasiprintf</code>, <code>vsiprintf</code>,
<code>vsniprintf</code>, and <code>vasniprintf</code> are (respectively) variants of
<code>iprintf</code>, <code>fiprintf</code>, <code>asiprintf</code>, <code>siprintf</code>, <code>sniprintf</code>,
and <code>asniprintf</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>_viprintf_r</code>, <code>_vfiprintf_r</code>, <code>_vasiprintf_r</code>,
<code>_vsiprintf_r</code>, <code>_vsniprintf_r</code>, and <code>_vasniprintf_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>
All of these functions are newlib 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>
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