bluestein.h

00001 /*
00002  *  This file is part of libfftpack.
00003  *
00004  *  libfftpack is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  libfftpack is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with libfftpack; if not, write to the Free Software
00016  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00017  */
00018 
00019 /*
00020  *  libfftpack is being developed at the Max-Planck-Institut fuer Astrophysik
00021  *  and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
00022  *  (DLR).
00023  */
00024 
00025 /*
00026  *  Copyright (C) 2005 Max-Planck-Society
00027  *  \author Martin Reinecke
00028  */
00029 
00030 #ifndef PLANCK_BLUESTEIN_H
00031 #define PLANCK_BLUESTEIN_H
00032 
00033 #ifdef __cplusplus
00034 extern "C" {
00035 #endif
00036 
00037 int prime_factor_sum (int n);
00038 
00039 void bluestein_i (int n, double **tstorage);
00040 void bluestein (int n, double *data, double *tstorage, int isign);
00041 
00042 #ifdef __cplusplus
00043 }
00044 #endif
00045 
00046 #endif