Function cfft_backward

numpy/fft/_pocketfft.c:2119–2125

  }

WARN_UNUSED_RESULT static int cfft_backward(cfft_plan plan, double c[], double fct)
  {
  if (plan->packplan)
    return cfftp_backward(plan->packplan,c,fct);
  // if (plan->blueplan)
  return cfftblue_backward(plan->blueplan,c,fct);
  }

WARN_UNUSED_RESULT static int cfft_forward(cfft_plan plan, double c[], double fct)
  {