LORENE
FFTW3/admissible_fft.C
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/*
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* Determines whether a given number of points N is allowed by the
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* Fast Fourier Transform algorithm of fftw, i.e. if
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*
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* N = 2*p and N >= 4
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*
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*/
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/*
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* Copyright (c) 1999-2001 Eric Gourgoulhon
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*
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* This file is part of LORENE.
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*
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* LORENE is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* LORENE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LORENE; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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char
admissible_fft_C[] =
"$Header: /cvsroot/Lorene/C++/Source/Non_class_members/Coef/FFTW3/admissible_fft.C,v 1.2 2014/10/13 08:53:18 j_novak Exp $"
;
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/*
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* $Id: admissible_fft.C,v 1.2 2014/10/13 08:53:18 j_novak Exp $
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* $Log: admissible_fft.C,v $
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* Revision 1.2 2014/10/13 08:53:18 j_novak
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* Lorene classes and functions now belong to the namespace Lorene.
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*
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* Revision 1.1 2004/12/21 17:06:02 j_novak
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* Added all files for using fftw3.
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*
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* Revision 1.1.1.1 2001/11/20 15:19:29 e_gourgoulhon
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* LORENE
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*
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* Revision 1.1 1999/11/24 16:06:52 eric
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* Initial revision
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*
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*
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* $Header: /cvsroot/Lorene/C++/Source/Non_class_members/Coef/FFTW3/admissible_fft.C,v 1.2 2014/10/13 08:53:18 j_novak Exp $
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*
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*/
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namespace
Lorene
{
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bool
admissible_fft(
int
n) {
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if
(n < 4) {
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return
false ;
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}
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// Division by 2
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//--------------
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int
reste = n % 2 ;
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if
(reste != 0) {
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return
false ;
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}
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return
true ;
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}
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}
Lorene
Lorene prototypes.
Definition
app_hor.h:64
C++
Source
Non_class_members
Coef
FFTW3
admissible_fft.C
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