1 /* -*- C++ -*- |
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2 * src/lemon/lp_cplex.h - Part of LEMON, a generic C++ optimization library |
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3 * |
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4 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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5 * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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6 * |
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7 * Permission to use, modify and distribute this software is granted |
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8 * provided that this copyright notice appears in all copies. For |
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9 * precise terms see the accompanying LICENSE file. |
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10 * |
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11 * This software is provided "AS IS" with no warranty of any kind, |
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12 * express or implied, and with no claim as to its suitability for any |
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13 * purpose. |
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14 * |
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15 */ |
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16 |
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17 #ifndef LEMON_LP_CPLEX_H |
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18 #define LEMON_LP_CPLEX_H |
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19 |
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20 ///\file |
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21 ///\brief Header of the LEMON-CPLEX lp solver interface. |
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22 |
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23 #include <lemon/lp_base.h> |
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24 extern "C" { |
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25 #include <ilcplex/cplex.h> |
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26 } |
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27 |
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28 namespace lemon { |
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29 |
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30 |
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31 /// \brief Wrapper for GLPK solver |
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32 /// |
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33 /// This class implements a lemon wrapper for GLPK. |
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34 class LpCplex : public LpSolverBase { |
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35 |
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36 public: |
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37 |
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38 typedef LpSolverBase Parent; |
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39 |
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40 /// \e |
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41 int status; |
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42 CPXENVptr env; |
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43 CPXLPptr lp; |
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44 |
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45 |
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46 /// \e |
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47 LpCplex() : Parent() { |
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48 env = NULL; |
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49 lp = NULL; |
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50 env = CPXopenCPLEXdevelop(&status); |
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51 // if (Env == NULL) |
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52 // { |
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53 // fprintf(stderr,"A CPLEX környezet megnyitása sikertelen.\n"); |
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54 // CPXgeterrorstring(Env, Status, ErrorMsg); |
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55 // fprintf(stderr,"%s",ErrorMsg); |
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56 // goto Terminate; |
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57 // } |
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58 |
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59 // *** A problema létrehozása *** |
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60 lp = CPXcreateprob(env, &status, "LP problem"); |
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61 |
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62 // if (Problem == NULL) |
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63 // { |
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64 // fprintf(stderr,"Az LP létrehozása sikertelen"); |
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65 // goto Terminate; |
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66 // } |
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67 |
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68 } |
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69 /// \e |
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70 ~LpCplex() { |
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71 status = CPXfreeprob(env,&lp); |
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72 // if (Status != 0) |
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73 // { |
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74 // fprintf(stderr,"A CPLEX feladat törlése sikertelen.\n"); |
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75 // CPXgeterrorstring(Env, Status, ErrorMsg); |
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76 // fprintf(stderr,"%s",ErrorMsg); |
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77 // goto Terminate; |
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78 // } |
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79 |
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80 status = CPXcloseCPLEX(&env); |
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81 // if (Status != 0) |
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82 // { |
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83 // fprintf(stderr,"A CPLEX környezet bezárása sikertelen.\n"); |
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84 // CPXgeterrorstring(Env, Status, ErrorMsg); |
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85 // fprintf(stderr,"%s",ErrorMsg); |
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86 // goto Terminate; |
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87 // } |
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88 |
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89 } |
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90 |
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91 protected: |
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92 virtual int _addCol(); |
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93 virtual int _addRow(); |
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94 virtual void _setRowCoeffs(int i, |
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95 int length, |
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96 const int * indices, |
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97 const Value * values ); |
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98 virtual void _setColCoeffs(int i, |
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99 int length, |
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100 const int * indices, |
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101 const Value * values); |
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102 virtual void _setColLowerBound(int i, Value value); |
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103 virtual void _setColUpperBound(int i, Value value); |
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104 virtual void _setRowLowerBound(int i, Value value); |
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105 virtual void _setRowUpperBound(int i, Value value); |
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106 virtual void _setObjCoeff(int i, Value obj_coef); |
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107 ///\e |
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108 |
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109 ///\bug Unimplemented |
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110 /// |
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111 virtual SolveExitStatus _solve(); |
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112 ///\e |
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113 |
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114 ///\bug Unimplemented |
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115 /// |
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116 virtual Value _getPrimal(int i); |
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117 ///\e |
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118 |
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119 ///\bug Unimplemented |
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120 /// |
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121 virtual Value _getPrimalValue(); |
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122 ///\e |
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123 |
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124 ///\bug Unimplemented |
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125 /// |
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126 virtual SolutionStatus _getPrimalStatus(); |
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127 |
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128 ///\e |
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129 |
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130 ///\bug Unimplemented |
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131 /// |
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132 virtual void _setMax(); |
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133 ///\e |
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134 |
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135 ///\bug Unimplemented |
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136 /// |
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137 virtual void _setMin(); |
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138 |
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139 }; |
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140 } //END OF NAMESPACE LEMON |
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141 |
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142 #endif //LEMON_LP_CPLEX_H |
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143 |
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