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/* multilarge_nlinear/dummy.c
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*
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* Copyright (C) 2016 Patrick Alken
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* dummy linear solver */
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#include <config.h>
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#include <gsl/gsl_math.h>
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#include <gsl/gsl_vector.h>
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#include <gsl/gsl_matrix.h>
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#include <gsl/gsl_linalg.h>
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#include <gsl/gsl_multilarge_nlinear.h>
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#include <gsl/gsl_errno.h>
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#include <gsl/gsl_blas.h>
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#include <gsl/gsl_permutation.h>
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static void *dummy_alloc (const size_t n, const size_t p);
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static int dummy_init(const void * vtrust_state, void * vstate);
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static int dummy_presolve(const double mu, const void * vtrust_state, void * vstate);
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static int dummy_solve(const gsl_vector * g, gsl_vector *x,
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const void * vtrust_state, void *vstate);
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static int dummy_rcond(double * rcond, const gsl_matrix * JTJ, void * vstate);
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static int dummy_covar(const gsl_matrix * JTJ, gsl_matrix * covar, void * vstate);
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static void *
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dummy_alloc (const size_t n, const size_t p)
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{
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(void) n;
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(void) p;
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return NULL;
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}
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static void
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dummy_free(void *vstate)
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{
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(void) vstate;
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}
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static int
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dummy_init(const void * vtrust_state, void * vstate)
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{
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(void) vtrust_state;
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(void) vstate;
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return GSL_SUCCESS;
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}
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static int
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dummy_presolve(const double mu, const void * vtrust_state, void * vstate)
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{
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(void) mu;
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(void) vtrust_state;
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(void) vstate;
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return GSL_SUCCESS;
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}
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static int
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dummy_solve(const gsl_vector * g, gsl_vector *x,
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const void * vtrust_state, void *vstate)
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{
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(void) g;
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(void) x;
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(void) vtrust_state;
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(void) vstate;
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return GSL_SUCCESS;
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}
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static int
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dummy_rcond(double * rcond, const gsl_matrix * JTJ, void * vstate)
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{
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(void) vstate;
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(void) rcond;
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(void) JTJ;
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*rcond = 0.0;
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return GSL_SUCCESS;
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}
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static int
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dummy_covar(const gsl_matrix * JTJ, gsl_matrix * covar, void * vstate)
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{
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(void) vstate;
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(void) JTJ;
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gsl_matrix_set_zero(covar);
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return GSL_SUCCESS;
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}
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static const gsl_multilarge_nlinear_solver dummy_type =
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{
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"dummy",
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dummy_alloc,
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dummy_init,
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dummy_presolve,
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dummy_solve,
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dummy_rcond,
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dummy_covar,
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dummy_free
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};
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const gsl_multilarge_nlinear_solver *gsl_multilarge_nlinear_solver_none = &dummy_type;
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