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<a name="fesetround_002d_002d_002dset-current-rounding-direction"></a>
<h3 class="section">3.9 <code>fesetround</code>&mdash;set current rounding direction</h3>
<a name="index-fesetround"></a>
<p><strong>Synopsis</strong>
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<pre class="example">#include &lt;fenv.h&gt;
int fesetround(int <var>round</var>);

Link with -lm.

</pre></div>
<p><strong>Description</strong><br>
This method attempts to set the current rounding direction represented
by <var>round</var>.  <var>round</var> must be the value of one of the
rounding-direction macros.
</p>
<br>
<p><strong>Returns</strong><br>
If the rounding mode was successfully established, this method returns
zero. Otherwise, a non-zero value is returned.
</p>
<br>
<p><strong>Portability</strong><br>
ANSI C requires <code>fesetround</code>.
</p>
<p>Not all Newlib targets have a working implementation.  Refer to
the file <code>sys/fenv.h</code> to see the status for your target.
</p>
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