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<a name="utoa_002d_002d_002dunsigned-integer-to-string"></a>
<h3 class="section">2.49 <code>utoa</code>&mdash;unsigned integer to string</h3>
<a name="index-utoa"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;stdlib.h&gt;
char *utoa(unsigned <var>value</var>, char *<var>str</var>, int <var>base</var>);
char *__utoa(unsigned <var>value</var>, char *<var>str</var>, int <var>base</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>utoa</code> converts the unsigned integer [&lt;value&gt;] to a null-terminated string
using the specified base, which must be between 2 and 36, inclusive.
<var>str</var> should be an array long enough to contain the converted
value, which in the worst case is sizeof(int)*8+1 bytes. 
</p>
<br>
<p><strong>Returns</strong><br>
A pointer to the string, <var>str</var>, or NULL if <var>base</var> is invalid.
</p>
<br>
<p><strong>Portability</strong><br>
<code>utoa</code> is non-ANSI.
</p>
<p>No supporting OS subroutine calls are required.
</p>
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