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1 // LinConst.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994, 1995 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, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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382
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24 #if !defined (octave_LinConst_h) |
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25 #define octave_LinConst_h 1 |
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26 |
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238
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27 class ostream; |
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28 |
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29 class ColumnVector; |
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30 |
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31 #include <float.h> |
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32 |
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33 #include "dMatrix.h" |
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34 #include "Bounds.h" |
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35 |
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465
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36 extern "C++" { |
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37 |
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38 #ifndef Vector |
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39 #define Vector ColumnVector |
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40 #endif |
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41 |
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42 class LinConst : public Bounds |
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43 { |
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44 public: |
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45 |
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46 LinConst (void); |
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47 LinConst (int nclin, int nx); |
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48 |
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49 LinConst (int nclin_eq, int nclin_ineq, int nx); |
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50 |
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51 LinConst (const Vector& lb, const Matrix& A, const Vector& ub); |
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52 |
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53 LinConst (const Matrix& A_eq, const Vector& b_eq, |
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54 const Matrix& A_ineq, const Vector& b_ineq); |
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55 |
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56 LinConst (const LinConst& a); |
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57 |
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58 LinConst& operator = (const LinConst& a); |
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59 |
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60 LinConst& resize (int nclin, int n); |
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61 |
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62 Matrix constraint_matrix (void) const; |
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63 |
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64 LinConst& set_constraint_matrix (const Matrix& A); |
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65 |
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66 Matrix eq_constraint_matrix (void) const; |
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67 Matrix ineq_constraint_matrix (void) const; |
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68 |
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69 Vector eq_constraint_vector (void) const; |
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70 Vector ineq_constraint_vector (void) const; |
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71 |
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72 friend ostream& operator << (ostream& os, const LinConst& b); |
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73 |
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74 protected: |
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75 |
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76 Matrix A; |
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77 |
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78 private: |
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79 |
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80 void error (const char *msg); |
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81 |
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82 }; |
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83 |
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84 inline LinConst::LinConst (void) : Bounds () {} |
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85 |
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86 inline LinConst::LinConst (int nc, int n) : Bounds (nc), A (nb, n) {} |
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87 |
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88 inline LinConst::LinConst (int eq, int ineq, int n) |
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89 : Bounds (eq+ineq), A (nb, n) {} |
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90 |
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91 inline LinConst::LinConst (const Vector& l, const Matrix& amat, |
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92 const Vector& u) |
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93 : Bounds (l, u), A (amat) |
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94 { |
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95 if (nb != amat.rows ()) |
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96 error ("inconsistent sizes for constraint matrix and bounds vectors"); |
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97 } |
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98 |
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99 inline LinConst::LinConst (const LinConst& a) |
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100 : Bounds (a.lb, a.ub), A (a.constraint_matrix ()) {} |
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101 |
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102 inline LinConst& |
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103 LinConst::operator = (const LinConst& a) |
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104 { |
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105 nb = a.nb; |
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106 lb = a.lb; |
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107 A = a.A; |
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108 ub = a.ub; |
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109 |
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110 return *this; |
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111 } |
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112 |
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113 inline Matrix |
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114 LinConst::constraint_matrix (void) const |
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115 { |
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116 return A; |
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117 } |
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118 |
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119 inline LinConst& |
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120 LinConst::set_constraint_matrix (const Matrix& amat) |
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121 { |
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122 if (lb.capacity () != amat.rows ()) |
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123 error ("inconsistent size for new linear constraint matrix"); |
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124 |
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125 A = amat; |
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126 |
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127 return *this; |
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128 } |
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129 |
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130 } // extern "C++" |
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131 |
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132 #endif |
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133 |
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134 /* |
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135 ;;; Local Variables: *** |
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136 ;;; mode: C++ *** |
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137 ;;; page-delimiter: "^/\\*" *** |
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138 ;;; End: *** |
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139 */ |
