|
Packit |
67cb25 |
/* ode-initval/odeiv.c
|
|
Packit |
67cb25 |
*
|
|
Packit |
67cb25 |
* Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
|
|
Packit |
67cb25 |
*
|
|
Packit |
67cb25 |
* This program is free software; you can redistribute it and/or modify
|
|
Packit |
67cb25 |
* it under the terms of the GNU General Public License as published by
|
|
Packit |
67cb25 |
* the Free Software Foundation; either version 3 of the License, or (at
|
|
Packit |
67cb25 |
* your option) any later version.
|
|
Packit |
67cb25 |
*
|
|
Packit |
67cb25 |
* This program is distributed in the hope that it will be useful, but
|
|
Packit |
67cb25 |
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
67cb25 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
67cb25 |
* General Public License for more details.
|
|
Packit |
67cb25 |
*
|
|
Packit |
67cb25 |
* You should have received a copy of the GNU General Public License
|
|
Packit |
67cb25 |
* along with this program; if not, write to the Free Software
|
|
Packit |
67cb25 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
Packit |
67cb25 |
*/
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
/* Author: G. Jungman
|
|
Packit |
67cb25 |
*/
|
|
Packit |
67cb25 |
#include <config.h>
|
|
Packit |
67cb25 |
#include <stdlib.h>
|
|
Packit |
67cb25 |
#include <gsl/gsl_errno.h>
|
|
Packit |
67cb25 |
#include <gsl/gsl_odeiv.h>
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
gsl_odeiv_step *
|
|
Packit |
67cb25 |
gsl_odeiv_step_alloc(const gsl_odeiv_step_type * T, size_t dim)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
gsl_odeiv_step *s = (gsl_odeiv_step *) malloc (sizeof (gsl_odeiv_step));
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
if (s == 0)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
GSL_ERROR_NULL ("failed to allocate space for ode struct", GSL_ENOMEM);
|
|
Packit |
67cb25 |
};
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
s->type = T;
|
|
Packit |
67cb25 |
s->dimension = dim;
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
s->state = s->type->alloc(dim);
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
if (s->state == 0)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
free (s); /* exception in constructor, avoid memory leak */
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
GSL_ERROR_NULL ("failed to allocate space for ode state", GSL_ENOMEM);
|
|
Packit |
67cb25 |
};
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
return s;
|
|
Packit |
67cb25 |
}
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
const char *
|
|
Packit |
67cb25 |
gsl_odeiv_step_name(const gsl_odeiv_step * s)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
return s->type->name;
|
|
Packit |
67cb25 |
}
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
unsigned int
|
|
Packit |
67cb25 |
gsl_odeiv_step_order(const gsl_odeiv_step * s)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
return s->type->order(s->state);
|
|
Packit |
67cb25 |
}
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
int
|
|
Packit |
67cb25 |
gsl_odeiv_step_apply(
|
|
Packit |
67cb25 |
gsl_odeiv_step * s,
|
|
Packit |
67cb25 |
double t,
|
|
Packit |
67cb25 |
double h,
|
|
Packit |
67cb25 |
double y[],
|
|
Packit |
67cb25 |
double yerr[],
|
|
Packit |
67cb25 |
const double dydt_in[],
|
|
Packit |
67cb25 |
double dydt_out[],
|
|
Packit |
67cb25 |
const gsl_odeiv_system * dydt)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
return s->type->apply(s->state, s->dimension, t, h, y, yerr, dydt_in, dydt_out, dydt);
|
|
Packit |
67cb25 |
}
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
int
|
|
Packit |
67cb25 |
gsl_odeiv_step_reset(gsl_odeiv_step * s)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
return s->type->reset(s->state, s->dimension);
|
|
Packit |
67cb25 |
}
|
|
Packit |
67cb25 |
|
|
Packit |
67cb25 |
void
|
|
Packit |
67cb25 |
gsl_odeiv_step_free(gsl_odeiv_step * s)
|
|
Packit |
67cb25 |
{
|
|
Packit |
67cb25 |
RETURN_IF_NULL (s);
|
|
Packit |
67cb25 |
s->type->free(s->state);
|
|
Packit |
67cb25 |
free(s);
|
|
Packit |
67cb25 |
}
|