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/* fft/real_unpack.c
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*
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* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough
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*
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* This program 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 3 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "complex_internal.h"
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int
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FUNCTION(gsl_fft_real,unpack) (const BASE real_coefficient[],
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BASE complex_coefficient[],
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const size_t stride, const size_t n)
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{
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size_t i;
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if (n == 0)
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{
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GSL_ERROR ("length n must be positive integer", GSL_EDOM);
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}
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for (i = 0; i < n; i++)
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{
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REAL(complex_coefficient,stride,i) = real_coefficient[i * stride];
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IMAG(complex_coefficient,stride,i) = 0.0;
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}
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return 0;
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}
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