td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">*S</td><td>points to an instance of the floating-point CFFT structure. </td></tr>
    <tr><td class="paramdir">[in,out]</td><td class="paramname">*p1</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">if