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/* gsl_splinalg.h
*
* Copyright (C) 2012-2014 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.
*/
#ifndef __GSL_SPLINALG_H__
#define __GSL_SPLINALG_H__
#include <gsl/gsl_math.h>
#include <gsl/gsl_vector.h>
#include <gsl/gsl_matrix.h>
#include <gsl/gsl_spmatrix.h>
#include <gsl/gsl_linalg.h>
#include <gsl/gsl_types.h>
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS /* empty */
# define __END_DECLS /* empty */
#endif
__BEGIN_DECLS
/* iteration solver type */
typedef struct
{
const char *name;
void * (*alloc) (const size_t n, const size_t m);
int (*iterate) (const gsl_spmatrix *A, const gsl_vector *b,
const double tol, gsl_vector *x, void *);
double (*normr)(const void *);
void (*free) (void *);
} gsl_splinalg_itersolve_type;
typedef struct
{
const gsl_splinalg_itersolve_type * type;
double normr; /* current residual norm || b - A x || */
void * state;
} gsl_splinalg_itersolve;
/* available types */
GSL_VAR const gsl_splinalg_itersolve_type * gsl_splinalg_itersolve_gmres;
/*
* Prototypes
*/
gsl_splinalg_itersolve *
gsl_splinalg_itersolve_alloc(const gsl_splinalg_itersolve_type *T,
const size_t n, const size_t m);
void gsl_splinalg_itersolve_free(gsl_splinalg_itersolve *w);
const char *gsl_splinalg_itersolve_name(const gsl_splinalg_itersolve *w);
int gsl_splinalg_itersolve_iterate(const gsl_spmatrix *A,
const gsl_vector *b,
const double tol, gsl_vector *x,
gsl_splinalg_itersolve *w);
double gsl_splinalg_itersolve_normr(const gsl_splinalg_itersolve *w);
__END_DECLS
#endif /* __GSL_SPLINALG_H__ */
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