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<a name="rint_002c-rintf_002d_002d_002dround-to-integer"></a>
<h3 class="section">1.49 <code>rint</code>, <code>rintf</code>&mdash;round to integer</h3>
<a name="index-rint"></a>
<a name="index-rintf"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;math.h&gt;
double rint(double <var>x</var>);
float rintf(float <var>x</var>);

</pre></div>
<p><strong>Description</strong><br>
The <code>rint</code> functions round their argument to an integer value in
floating-point format, using the current rounding direction.  They
raise the &quot;inexact&quot; floating-point exception if the result differs
in value from the argument.  See the <code>nearbyint</code> functions for the
same function with the &quot;inexact&quot; floating-point exception never being
raised.  Newlib does not directly support floating-point exceptions.
The <code>rint</code> functions are written so that the &quot;inexact&quot; exception is
raised in hardware implementations that support it, even though Newlib
does not provide access.
</p>
<br>
<p><strong>Returns</strong><br>
<var>x</var> rounded to an integral value, using the current rounding direction.
</p>
<br>
<p><strong>Portability</strong><br>
ANSI C, POSIX
</p>
<br>
<p><strong>See Also</strong><br>
<code>nearbyint</code>, <code>round</code>
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