/* fft/real_unpack.c * * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 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 3 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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