summaryrefslogtreecommitdiff
path: root/gsl-1.9/ode-initval/control.c
diff options
context:
space:
mode:
Diffstat (limited to 'gsl-1.9/ode-initval/control.c')
-rw-r--r--gsl-1.9/ode-initval/control.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/gsl-1.9/ode-initval/control.c b/gsl-1.9/ode-initval/control.c
new file mode 100644
index 0000000..dcbff06
--- /dev/null
+++ b/gsl-1.9/ode-initval/control.c
@@ -0,0 +1,80 @@
+/* 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);
+}