| /* ode-initval/control.c |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman |
| * |
| * 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 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 |
| * 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. |
| */ |
| |
| /* Author: G. Jungman */ |
| |
| #include <config.h> |
| #include <stdlib.h> |
| #include <gsl/gsl_math.h> |
| #include <gsl/gsl_errno.h> |
| #include <gsl/gsl_odeiv.h> |
| |
| gsl_odeiv_control * |
| gsl_odeiv_control_alloc(const gsl_odeiv_control_type * T) |
| { |
| gsl_odeiv_control * c = |
| (gsl_odeiv_control *) malloc(sizeof(gsl_odeiv_control)); |
| |
| if(c == 0) |
| { |
| GSL_ERROR_NULL ("failed to allocate space for control struct", |
| GSL_ENOMEM); |
| }; |
| |
| c->type = T; |
| c->state = c->type->alloc(); |
| |
| if (c->state == 0) |
| { |
| free (c); /* exception in constructor, avoid memory leak */ |
| |
| GSL_ERROR_NULL ("failed to allocate space for control state", |
| GSL_ENOMEM); |
| }; |
| |
| return c; |
| } |
| |
| int |
| gsl_odeiv_control_init(gsl_odeiv_control * c, |
| double eps_abs, double eps_rel, |
| double a_y, double a_dydt) |
| { |
| return c->type->init (c->state, eps_abs, eps_rel, a_y, a_dydt); |
| } |
| |
| void |
| gsl_odeiv_control_free(gsl_odeiv_control * c) |
| { |
| c->type->free(c->state); |
| free(c); |
| } |
| |
| const char * |
| gsl_odeiv_control_name(const gsl_odeiv_control * c) |
| { |
| return c->type->name; |
| } |
| |
| int |
| gsl_odeiv_control_hadjust (gsl_odeiv_control * c, gsl_odeiv_step * s, const double y[], const double yerr[], const double dydt[], double * h) |
| { |
| return c->type->hadjust(c->state, s->dimension, s->type->order(s->state), |
| y, yerr, dydt, h); |
| } |