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1 // Objective.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1996 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_Objective_h) |
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25 #define octave_Objective_h 1 |
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26 |
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27 #include "dColVector.h" |
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28 |
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29 class |
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30 Objective |
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31 { |
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32 public: |
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33 |
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34 typedef double (*objective_fcn) (const ColumnVector&); |
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35 typedef ColumnVector (*gradient_fcn) (const ColumnVector&); |
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36 |
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37 Objective (void) |
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38 : phi (0), grad (0) { } |
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39 |
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40 Objective (const objective_fcn obj) |
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41 : phi (obj), grad (0) { } |
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42 |
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43 Objective (const objective_fcn obj, const gradient_fcn g) |
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44 : phi (obj), grad (g) { } |
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45 |
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46 Objective (const Objective& a) |
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47 : phi (a.phi), grad (a.grad) { } |
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48 |
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49 Objective& operator = (const Objective& a) |
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50 { |
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51 if (this != &a) |
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52 { |
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53 phi = a.phi; |
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54 grad = a.grad; |
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55 } |
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56 return *this; |
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57 } |
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58 |
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59 ~Objective (void) { } |
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60 |
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61 objective_fcn objective_function (void) const { return phi; } |
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62 |
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63 Objective& set_objective_function (const objective_fcn obj) |
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64 { |
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65 phi = obj; |
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66 return *this; |
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67 } |
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68 |
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69 gradient_fcn gradient_function (void) const { return grad; } |
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70 |
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71 Objective& set_gradient_function (const gradient_fcn g) |
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72 { |
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73 grad = g; |
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74 return *this; |
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75 } |
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76 |
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77 private: |
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78 |
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79 objective_fcn phi; |
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80 gradient_fcn grad; |
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81 |
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82 }; |
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83 |
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84 #endif |
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85 |
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86 /* |
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87 ;;; Local Variables: *** |
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88 ;;; mode: C++ *** |
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89 ;;; page-delimiter: "^/\\*" *** |
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90 ;;; End: *** |
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91 */ |
