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spclibs/fft/fftw_f77.h
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fftw_f77.h
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!>
!> @file fftw_f77.h
!>
!> @brief
!>
!> @copyright
!> Copyright (©) 2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
!> SPC (Swiss Plasma Center)
!>
!> SPClibs is free software: you can redistribute it and/or modify it under
!> the terms of the GNU Lesser General Public License as published by the Free
!> Software Foundation, either version 3 of the License, or (at your option)
!> any later version.
!>
!> SPClibs is distributed in the hope that it will be useful, but WITHOUT ANY
!> WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
!> FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
!>
!> You should have received a copy of the GNU Lesser General Public License
!> along with this program. If not, see <https://www.gnu.org/licenses/>.
!>
!> @author
!> (in alphabetical order)
!> @author Trach-Minh Tran <trach-minh.tran@epfl.ch>
!>
! 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)
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