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/* fft/real_unpack.c
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "complex_internal.h"
int
FUNCTION(gsl_fft_real,unpack) (const BASE real_coefficient[],
BASE complex_coefficient[],
const size_t stride, const size_t n)
{
size_t i;
if (n == 0)
{
GSL_ERROR ("length n must be positive integer", GSL_EDOM);
}
for (i = 0; i < n; i++)
{
REAL(complex_coefficient,stride,i) = real_coefficient[i * stride];
IMAG(complex_coefficient,stride,i) = 0.0;
}
return 0;
}
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