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Next: <a href="quadmath_005fsnprintf.html#quadmath_005fsnprintf" accesskey="n" rel="next">quadmath_snprintf</a>, Up: <a href="I_002fO-Library-Routines.html#I_002fO-Library-Routines" accesskey="u" rel="up">I/O Library Routines</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
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<a name="strtoflt128-_002d_002d_002d-Convert-from-string"></a>
<h3 class="section">3.1 <code>strtoflt128</code> &mdash; Convert from string</h3>

<p>The function <code>strtoflt128</code> converts a string into a
<code>__float128</code> number.
</p>
<dl compact="compact">
<dt>Syntax</dt>
<dd><p><code>__float128 strtoflt128 (const char *s, char **sp)</code>
</p>
</dd>
<dt><em>Arguments</em>:</dt>
<dd><table>
<tr><td width="15%"><var>s</var></td><td width="70%">input string</td></tr>
<tr><td width="15%"><var>sp</var></td><td width="70%">the address of the next character in the string</td></tr>
</table>

<p>The argument <var>sp</var> contains, if not <code>NULL</code>, the address of the
next character following the parts of the string, which have been read.
</p>
</dd>
<dt>Example</dt>
<dd><div class="smallexample">
<pre class="smallexample">#include &lt;quadmath.h&gt;

int main ()
{
  __float128 r;

  r = strtoflt128 (&quot;1.2345678&quot;, NULL);

  return 0;
}
</pre></div>
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