fftw_plan_dft

function fftw_plan_dft(

  rank: Cardinal;

  n: Pcardinal;

  i: Pcomplex_single;

  o: Pcomplex_single;

  sign: fftw_sign;

  flags: fftw_flagset

):fftw_plan_single;

function fftw_plan_dft(

  rank: Cardinal;

  n: Pcardinal;

  i: Psingle;

  o: Pcomplex_single;

  flags: fftw_flagset

):fftw_plan_single;

function fftw_plan_dft(

  rank: Cardinal;

  n: Pcardinal;

  i: Pcomplex_single;

  o: Psingle;

  flags: fftw_flagset

):fftw_plan_single;