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/* multilarge_nlinear/dummy.c
*
* Copyright (C) 2016 Patrick Alken
*
* 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.
*/
/* dummy linear solver */
#include <config.h>
#include <gsl/gsl_math.h>
#include <gsl/gsl_vector.h>
#include <gsl/gsl_matrix.h>
#include <gsl/gsl_linalg.h>
#include <gsl/gsl_multilarge_nlinear.h>
#include <gsl/gsl_errno.h>
#include <gsl/gsl_blas.h>
#include <gsl/gsl_permutation.h>
static void *dummy_alloc (const size_t n, const size_t p);
static int dummy_init(const void * vtrust_state, void * vstate);
static int dummy_presolve(const double mu, const void * vtrust_state, void * vstate);
static int dummy_solve(const gsl_vector * g, gsl_vector *x,
const void * vtrust_state, void *vstate);
static int dummy_rcond(double * rcond, const gsl_matrix * JTJ, void * vstate);
static int dummy_covar(const gsl_matrix * JTJ, gsl_matrix * covar, void * vstate);
static void *
dummy_alloc (const size_t n, const size_t p)
{
(void) n;
(void) p;
return NULL;
}
static void
dummy_free(void *vstate)
{
(void) vstate;
}
static int
dummy_init(const void * vtrust_state, void * vstate)
{
(void) vtrust_state;
(void) vstate;
return GSL_SUCCESS;
}
static int
dummy_presolve(const double mu, const void * vtrust_state, void * vstate)
{
(void) mu;
(void) vtrust_state;
(void) vstate;
return GSL_SUCCESS;
}
static int
dummy_solve(const gsl_vector * g, gsl_vector *x,
const void * vtrust_state, void *vstate)
{
(void) g;
(void) x;
(void) vtrust_state;
(void) vstate;
return GSL_SUCCESS;
}
static int
dummy_rcond(double * rcond, const gsl_matrix * JTJ, void * vstate)
{
(void) vstate;
(void) rcond;
(void) JTJ;
*rcond = 0.0;
return GSL_SUCCESS;
}
static int
dummy_covar(const gsl_matrix * JTJ, gsl_matrix * covar, void * vstate)
{
(void) vstate;
(void) JTJ;
gsl_matrix_set_zero(covar);
return GSL_SUCCESS;
}
static const gsl_multilarge_nlinear_solver dummy_type =
{
"dummy",
dummy_alloc,
dummy_init,
dummy_presolve,
dummy_solve,
dummy_rcond,
dummy_covar,
dummy_free
};
const gsl_multilarge_nlinear_solver *gsl_multilarge_nlinear_solver_none = &dummy_type;
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