/usr/include/rfftw.h is in fftw-dev 2.1.5-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /*
* Copyright (c) 1997-1999, 2003 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* rfftw.h -- system-wide definitions for rfftw */
#ifndef RFFTW_H
#define RFFTW_H
#include "fftw.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/****************************************************************************/
#define RFFTW_V2
typedef fftw_plan rfftw_plan;
typedef fftwnd_plan rfftwnd_plan;
#define FFTW_REAL_TO_COMPLEX FFTW_FORWARD
#define FFTW_COMPLEX_TO_REAL FFTW_BACKWARD
extern void rfftw(rfftw_plan plan, int howmany, fftw_real *in, int istride,
int idist, fftw_real *out, int ostride, int odist);
extern void rfftw_one(rfftw_plan plan, fftw_real *in, fftw_real *out);
extern rfftw_plan rfftw_create_plan_specific(int n, fftw_direction dir,
int flags,
fftw_real *in, int istride,
fftw_real *out, int ostride);
extern rfftw_plan rfftw_create_plan(int n, fftw_direction dir, int flags);
extern void rfftw_destroy_plan(rfftw_plan plan);
extern void rfftw_fprint_plan(FILE *f, rfftw_plan p);
extern void rfftw_print_plan(rfftw_plan p);
extern void rfftw_executor_simple(int n, fftw_real *in,
fftw_real *out,
fftw_plan_node *p,
int istride,
int ostride,
fftw_recurse_kind recurse_kind);
extern rfftwnd_plan rfftwnd_create_plan_specific(int rank, const int *n,
fftw_direction dir, int flags,
fftw_real *in, int istride,
fftw_real *out, int ostride);
extern rfftwnd_plan rfftw2d_create_plan_specific(int nx, int ny,
fftw_direction dir, int flags,
fftw_real *in, int istride,
fftw_real *out, int ostride);
extern rfftwnd_plan rfftw3d_create_plan_specific(int nx, int ny, int nz,
fftw_direction dir, int flags,
fftw_real *in, int istride,
fftw_real *out, int ostride);
extern rfftwnd_plan rfftwnd_create_plan(int rank, const int *n,
fftw_direction dir, int flags);
extern rfftwnd_plan rfftw2d_create_plan(int nx, int ny,
fftw_direction dir, int flags);
extern rfftwnd_plan rfftw3d_create_plan(int nx, int ny, int nz,
fftw_direction dir, int flags);
extern void rfftwnd_destroy_plan(rfftwnd_plan plan);
extern void rfftwnd_fprint_plan(FILE *f, rfftwnd_plan plan);
extern void rfftwnd_print_plan(rfftwnd_plan plan);
extern void rfftwnd_real_to_complex(rfftwnd_plan p, int howmany,
fftw_real *in, int istride, int idist,
fftw_complex *out, int ostride, int odist);
extern void rfftwnd_complex_to_real(rfftwnd_plan p, int howmany,
fftw_complex *in, int istride, int idist,
fftw_real *out, int ostride, int odist);
extern void rfftwnd_one_real_to_complex(rfftwnd_plan p,
fftw_real *in, fftw_complex *out);
extern void rfftwnd_one_complex_to_real(rfftwnd_plan p,
fftw_complex *in, fftw_real *out);
/****************************************************************************/
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
#endif /* RFFTW_H */
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