AT_ROUND</strong></span> does <span class="emphasis"><em>not</em></span>
produce a twos complement integer output (See the <span class="bold"><strong>TRUNC</strong></span> operator).
Both input0 and output must be the same size. If
input0 is <span class="bold"><strong>NaN</strong></span>, output is set
to <span class="bold"><strong>NaN</strong></span>.
</p>
</div>
<div class="sect2">
<div class="titlepage"><div><div><h3 class="title">
<a name="cpui_float_nan"></a>FLOAT_NAN</h3></div></div></div>
<div class=