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/*
Copyright (C) 1996, 1997, 2000, 2002, 2003, 2005, 2007 John W. Eaton
This file is part of Octave.
Octave 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.
Octave 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 Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#if !defined (octave_base_de_h)
#define octave_base_de_h 1
#include <string>
#include "dColVector.h"
#include "dMatrix.h"
class
base_diff_eqn
{
public:
base_diff_eqn (void)
: x (), t (0.0), stop_time (0.0), stop_time_set (false),
restart (true), integration_error (false), istate (0) { }
base_diff_eqn (const ColumnVector& xx, double tt)
: x (xx), t (tt), stop_time (0.0), stop_time_set (false),
restart (true), integration_error (false), istate (0) { }
base_diff_eqn (const base_diff_eqn& a)
: x (a.x), t (a.t), stop_time (0.0), stop_time_set (false),
restart (true), integration_error (false), istate (0) { }
virtual ~base_diff_eqn (void) { }
base_diff_eqn& operator = (const base_diff_eqn& a)
{
if (this != &a)
{
x = a.x;
t = a.t;
stop_time = a.stop_time;
stop_time_set = a.stop_time_set;
restart = a.restart;
integration_error = a.integration_error;
istate = a.istate;
}
return *this;
}
void initialize (const ColumnVector& x0, double t0)
{
x = x0;
t = t0;
integration_error = false;
istate = 0;
force_restart ();
}
octave_idx_type size (void) const { return x.capacity (); }
ColumnVector state (void) const { return x; }
double time (void) const { return t; }
void set_stop_time (double tt)
{
stop_time_set = true;
stop_time = tt;
force_restart ();
}
void clear_stop_time (void)
{
stop_time_set = false;
force_restart ();
}
virtual void force_restart (void) { restart = true; }
bool integration_ok (void) const { return ! integration_error; }
octave_idx_type integration_state (void) const { return istate; }
virtual std::string error_message (void) const = 0;
protected:
ColumnVector x;
double t;
double stop_time;
bool stop_time_set;
bool restart;
bool integration_error;
octave_idx_type istate;
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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