STK_blas_util.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2023  Serge Iovleff, Université Lille 1, Inria
 
    This program 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 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this program; if not, write to the
    Free Software Foundation, Inc.,
    59 Temple Place,
    Suite 330,
    Boston, MA 02111-1307
    USA
 
    Contact : S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
*/
 
/*    Project: stkpp::Algebra
 * created on: Feb 17, 2023
 *     Author: iovleff, S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
 **/
 
#ifndef STK_BLAS_UTIL_H_
#define STK_BLAS_UTIL_H_
 
 
namespace STK
{
namespace blas
{
inline void dgemm( int m, int n, int nrhs
                , Real * a, int lda
                , Real * b, int ldb
                , Real * s
                , Real *rcond, int *rank
                , Real *work, int lWork, int* iwork)
{
  int info = 1;
#ifdef STKUSEBLAS
#ifdef STKREALAREFLOAT
  sgemm_( &m, &n, &nrhs, a, &lda, b, &ldb, s, rcond, rank, work, &lWork, iwork, &info);
#else
  dgemm_( &m, &n, &nrhs
          , a, &lda
          , b, &ldb
          , s
          , rcond, rank
          , work, &lWork, iwork, &info);
#endif
#endif
  return info;
}
 
void dgesv_(int * n, int * nrhs, double * A, int * lda,
              int * ipiv, double * B, int * ldb, int * info);
} // namespace blas
} // namespace SK
 
#endif /* STK_BLAS_UTIL_H_ */