dspl/dspl_2src_2math__matrix_2matrix__mul_8c_source.html

/*

* Copyright (c) 2015-2024 Sergey Bakhurin

* Digital Signal Processing Library [http://dsplib.org]

*

* This file is part of libdspl-2.0.

*

* is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser    General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* DSPL 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 Lesser General Public License

* along with Foobar.    If not, see <http://www.gnu.org/licenses/>.

*/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <float.h>

#include "dspl.h"


#include "blas.h"


#ifdef DOXYGEN_ENGLISH


#endif

#ifdef DOXYGEN_RUSSIAN


#endif

int DSPL_API matrix_mul(double* a, int na, int ma,

                        double* b, int nb, int mb,

                        double* c)

{


    double alpha = 1;

    double beta = 0.0;


    if(!a || !b || !c)

        return ERROR_PTR;

    if(na < 1 || ma < 1 || nb < 1 || mb < 1 || ma != nb)

        return ERROR_MATRIX_SIZE;


    /* BLAS DGEMM */

    dgemm_("N", "N", &na, &mb, &ma, &alpha, a, &na, b, &nb, &beta, c, &na);


    return RES_OK;

}