fftw_f77.i

FFTW, a collection of fast C routines to compute the Discrete Fourier Transform in one or more dime

!     This file contains PARAMETER statements for various constants
!     that can be passed to FFTW routines.  You should include
!     this file in any FORTRAN program that calls the fftw_f77
!     routines (either directly or with an #include statement
!     if you use the C preprocessor).

      integer FFTW_FORWARD,FFTW_BACKWARD
      parameter (FFTW_FORWARD=-1,FFTW_BACKWARD=1)

      integer FFTW_REAL_TO_COMPLEX,FFTW_COMPLEX_TO_REAL
      parameter (FFTW_REAL_TO_COMPLEX=-1,FFTW_COMPLEX_TO_REAL=1)

      integer FFTW_ESTIMATE,FFTW_MEASURE
      parameter (FFTW_ESTIMATE=0,FFTW_MEASURE=1)

      integer FFTW_OUT_OF_PLACE,FFTW_IN_PLACE,FFTW_USE_WISDOM
      parameter (FFTW_OUT_OF_PLACE=0)
      parameter (FFTW_IN_PLACE=8,FFTW_USE_WISDOM=16)

      integer FFTW_THREADSAFE
      parameter (FFTW_THREADSAFE=128)

!     Constants for the MPI wrappers:
      integer FFTW_TRANSPOSED_ORDER, FFTW_NORMAL_ORDER
      integer FFTW_SCRAMBLED_INPUT, FFTW_SCRAMBLED_OUTPUT
      parameter(FFTW_TRANSPOSED_ORDER=1, FFTW_NORMAL_ORDER=0)
      parameter(FFTW_SCRAMBLED_INPUT=8192)
      parameter(FFTW_SCRAMBLED_OUTPUT=16384)