Data Dictionary System: Developers "C" FFT Routines

These FFT convenience wrappers are intended to provide a few basic generic fft routines on our various platforms. As libraries and/or system change we should only have to update these wrappers, without having to modify each source program that needs to do fft's. Each program utilizing these routines should include the following file:

#include <cfft.h>

cfft_nrfft5 - radix 2,3,5 size
cfft_nrfft5odd - radix 3,5 even size
cfft_ccfftm - multiple complex-complex FFT's
cfft_ccfft2d - complex-complex 2D FFT
cfft_ccfft3d - complex-complex 3D FFT
cfft_rcfftm - multiple real-complex FFT's
cfft_rcfft2d - real-complex 2D FFT
cfft_rcfft3d - real-complex 3D FFT
cfft_crfftm - multiple complex-real FFT's
cfft_crfft2d - complex-real 2D FFT
cfft_crfft3d - complex-real 3D FFT
cfft_zzfftm - multiple double precision complex-complex FFT's
cfft_zzfft2d - double precision complex-complex 2D FFT
cfft_zzfft3d - double precision complex-complex 3D FFT

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