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/* blas/source_gerc.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 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.
*/
{
INDEX i, j;
CHECK_ARGS10(CZ_GERC,order,M,N,alpha,X,incX,Y,incY,A,lda);
{
const BASE alpha_real = CONST_REAL0(alpha);
const BASE alpha_imag = CONST_IMAG0(alpha);
if (order == CblasRowMajor) {
INDEX ix = OFFSET(M, incX);
for (i = 0; i < M; i++) {
const BASE X_real = CONST_REAL(X, ix);
const BASE X_imag = CONST_IMAG(X, ix);
const BASE tmp_real = alpha_real * X_real - alpha_imag * X_imag;
const BASE tmp_imag = alpha_imag * X_real + alpha_real * X_imag;
INDEX jy = OFFSET(N, incY);
for (j = 0; j < N; j++) {
const BASE Y_real = CONST_REAL(Y, jy);
const BASE Y_imag = -CONST_IMAG(Y, jy);
REAL(A, lda * i + j) += Y_real * tmp_real - Y_imag * tmp_imag;
IMAG(A, lda * i + j) += Y_imag * tmp_real + Y_real * tmp_imag;
jy += incY;
}
ix += incX;
}
} else if (order == CblasColMajor) {
INDEX jy = OFFSET(N, incY);
for (j = 0; j < N; j++) {
const BASE Y_real = CONST_REAL(Y, jy);
const BASE Y_imag = -CONST_IMAG(Y, jy);
const BASE tmp_real = alpha_real * Y_real - alpha_imag * Y_imag;
const BASE tmp_imag = alpha_imag * Y_real + alpha_real * Y_imag;
INDEX ix = OFFSET(M, incX);
for (i = 0; i < M; i++) {
const BASE X_real = CONST_REAL(X, ix);
const BASE X_imag = CONST_IMAG(X, ix);
REAL(A, i + lda * j) += X_real * tmp_real - X_imag * tmp_imag;
IMAG(A, i + lda * j) += X_imag * tmp_real + X_real * tmp_imag;
ix += incX;
}
jy += incY;
}
} else {
BLAS_ERROR("unrecognized operation");
}
}
}
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