UCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if <code>fftLen</code> is not a supported value.</dd></dl>
<dl class="section user"><dt>Description: </dt><dd></dd></dl>
<dl class="section user"><dt></dt><dd>The parameter <code>ifftFlag</code> controls whether a forward or inverse transform is computed. Set(=1) ifftFlag for calculation of CIFFT otherwise CFFT is calculated </dd></dl>
<dl class="section user"><dt></dt><dd>The parameter <code>bitReverseFlag</code> controls whether output is i