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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_ODEFunc_h) |
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24 #define octave_ODEFunc_h 1 |
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25 |
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26 class Matrix; |
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27 class ColumnVector; |
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28 |
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29 class |
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30 ODEFunc |
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31 { |
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32 public: |
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33 |
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34 typedef ColumnVector (*ODERHSFunc) (const ColumnVector&, double); |
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35 typedef Matrix (*ODEJacFunc) (const ColumnVector&, double); |
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36 |
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37 ODEFunc (void) |
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38 : fun (0), jac (0), reset (true) { } |
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39 |
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40 ODEFunc (ODERHSFunc f) |
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41 : fun (f), jac (0), reset (true) { } |
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42 |
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43 ODEFunc (ODERHSFunc f, ODEJacFunc j) |
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44 : fun (f), jac (j), reset (true) { } |
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45 |
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46 ODEFunc (const ODEFunc& a) |
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47 : fun (a.fun), jac (a.jac), reset (true) { } |
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48 |
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49 ODEFunc& operator = (const ODEFunc& a) |
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50 { |
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51 if (this != &a) |
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52 { |
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53 fun = a.fun; |
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54 jac = a.jac; |
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55 reset = a.reset; |
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56 } |
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57 return *this; |
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58 } |
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59 |
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60 ~ODEFunc (void) { } |
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61 |
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62 ODERHSFunc function (void) const { return fun; } |
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63 |
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64 ODEFunc& set_function (ODERHSFunc f) |
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65 { |
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66 fun = f; |
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67 reset = true; |
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68 return *this; |
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69 } |
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70 |
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71 ODEJacFunc jacobian_function (void) const { return jac; } |
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72 |
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73 ODEFunc& set_jacobian_function (ODEJacFunc j) |
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74 { |
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75 jac = j; |
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76 reset = true; |
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77 return *this; |
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78 } |
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79 |
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80 protected: |
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81 |
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82 ODERHSFunc fun; |
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83 ODEJacFunc jac; |
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84 |
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85 // This variable is TRUE when this object is constructed, and also |
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86 // after any internal data has changed. Derived classes may use |
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87 // this information (and change it) to know when to (re)initialize |
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88 // their own internal data related to this object. |
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89 |
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90 bool reset; |
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91 }; |
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92 |
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93 #endif |
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94 |
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95 /* |
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96 ;;; Local Variables: *** |
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97 ;;; mode: C++ *** |
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98 ;;; End: *** |
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99 */ |
