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/* blas/source_scal_c.h
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
*
* 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.
*/
{
INDEX i;
INDEX ix;
const BASE alpha_real = CONST_REAL0(alpha);
const BASE alpha_imag = CONST_IMAG0(alpha);
if (incX <= 0) {
return;
}
ix = OFFSET(N, incX);
for (i = 0; i < N; i++) {
const BASE x_real = REAL(X, ix);
const BASE x_imag = IMAG(X, ix);
REAL(X, ix) = x_real * alpha_real - x_imag * alpha_imag;
IMAG(X, ix) = x_real * alpha_imag + x_imag * alpha_real;
ix += incX;
}
}
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