in output. Both
inputs and output must be the same size. If either input
is <span class="bold"><strong>NaN</strong></span>, output is set
to <span class="bold"><strong>NaN</strong></span>. If any overflow condition
occurs, 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_sub"></a>FLOAT_SUB</h3></div></div></div>
<div class="informalexample"><div class="table">
<a name="floatsub.htmltable">