1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library. |
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4 | * |
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5 | * Copyright (C) 2003-2008 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #include <lemon/lp_skeleton.h> |
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20 | |
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21 | ///\file |
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22 | ///\brief A skeleton file to implement LP solver interfaces |
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23 | namespace lemon { |
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24 | |
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25 | int SkeletonSolverBase::_addCol() |
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26 | { |
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27 | return ++col_num; |
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28 | } |
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29 | |
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30 | int SkeletonSolverBase::_addRow() |
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31 | { |
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32 | return ++row_num; |
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33 | } |
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34 | |
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35 | void SkeletonSolverBase::_eraseCol(int) {} |
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36 | void SkeletonSolverBase::_eraseRow(int) {} |
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37 | |
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38 | void SkeletonSolverBase::_getColName(int, std::string &) const {} |
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39 | void SkeletonSolverBase::_setColName(int, const std::string &) {} |
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40 | int SkeletonSolverBase::_colByName(const std::string&) const { return -1; } |
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41 | |
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42 | void SkeletonSolverBase::_getRowName(int, std::string &) const {} |
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43 | void SkeletonSolverBase::_setRowName(int, const std::string &) {} |
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44 | int SkeletonSolverBase::_rowByName(const std::string&) const { return -1; } |
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45 | |
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46 | void SkeletonSolverBase::_setRowCoeffs(int, ExprIterator, ExprIterator) {} |
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47 | void SkeletonSolverBase::_getRowCoeffs(int, InsertIterator) const {} |
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48 | |
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49 | void SkeletonSolverBase::_setColCoeffs(int, ExprIterator, ExprIterator) {} |
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50 | void SkeletonSolverBase::_getColCoeffs(int, InsertIterator) const {} |
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51 | |
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52 | void SkeletonSolverBase::_setCoeff(int, int, Value) {} |
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53 | SkeletonSolverBase::Value SkeletonSolverBase::_getCoeff(int, int) const |
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54 | { return 0; } |
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55 | |
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56 | void SkeletonSolverBase::_setColLowerBound(int, Value) {} |
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57 | SkeletonSolverBase::Value SkeletonSolverBase::_getColLowerBound(int) const |
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58 | { return 0; } |
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59 | |
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60 | void SkeletonSolverBase::_setColUpperBound(int, Value) {} |
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61 | SkeletonSolverBase::Value SkeletonSolverBase::_getColUpperBound(int) const |
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62 | { return 0; } |
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63 | |
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64 | void SkeletonSolverBase::_setRowLowerBound(int, Value) {} |
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65 | SkeletonSolverBase::Value SkeletonSolverBase::_getRowLowerBound(int) const |
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66 | { return 0; } |
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67 | |
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68 | void SkeletonSolverBase::_setRowUpperBound(int, Value) {} |
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69 | SkeletonSolverBase::Value SkeletonSolverBase::_getRowUpperBound(int) const |
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70 | { return 0; } |
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71 | |
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72 | void SkeletonSolverBase::_setObjCoeffs(ExprIterator, ExprIterator) {} |
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73 | void SkeletonSolverBase::_getObjCoeffs(InsertIterator) const {}; |
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74 | |
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75 | void SkeletonSolverBase::_setObjCoeff(int, Value) {} |
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76 | SkeletonSolverBase::Value SkeletonSolverBase::_getObjCoeff(int) const |
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77 | { return 0; } |
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78 | |
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79 | void SkeletonSolverBase::_setSense(Sense) {} |
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80 | SkeletonSolverBase::Sense SkeletonSolverBase::_getSense() const |
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81 | { return MIN; } |
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82 | |
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83 | void SkeletonSolverBase::_clear() { |
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84 | row_num = col_num = 0; |
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85 | } |
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86 | |
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87 | void SkeletonSolverBase::_messageLevel(MessageLevel) {} |
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88 | |
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89 | LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; } |
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90 | |
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91 | LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; } |
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92 | LpSkeleton::Value LpSkeleton::_getDual(int) const { return 0; } |
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93 | LpSkeleton::Value LpSkeleton::_getPrimalValue() const { return 0; } |
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94 | |
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95 | LpSkeleton::Value LpSkeleton::_getPrimalRay(int) const { return 0; } |
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96 | LpSkeleton::Value LpSkeleton::_getDualRay(int) const { return 0; } |
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97 | |
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98 | LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const |
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99 | { return UNDEFINED; } |
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100 | |
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101 | LpSkeleton::ProblemType LpSkeleton::_getDualType() const |
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102 | { return UNDEFINED; } |
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103 | |
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104 | LpSkeleton::VarStatus LpSkeleton::_getColStatus(int) const |
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105 | { return BASIC; } |
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106 | |
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107 | LpSkeleton::VarStatus LpSkeleton::_getRowStatus(int) const |
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108 | { return BASIC; } |
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109 | |
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110 | LpSkeleton* LpSkeleton::newSolver() const |
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111 | { return static_cast<LpSkeleton*>(0); } |
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112 | |
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113 | LpSkeleton* LpSkeleton::cloneSolver() const |
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114 | { return static_cast<LpSkeleton*>(0); } |
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115 | |
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116 | const char* LpSkeleton::_solverName() const { return "LpSkeleton"; } |
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117 | |
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118 | MipSkeleton::SolveExitStatus MipSkeleton::_solve() |
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119 | { return SOLVED; } |
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120 | |
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121 | MipSkeleton::Value MipSkeleton::_getSol(int) const { return 0; } |
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122 | MipSkeleton::Value MipSkeleton::_getSolValue() const { return 0; } |
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123 | |
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124 | MipSkeleton::ProblemType MipSkeleton::_getType() const |
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125 | { return UNDEFINED; } |
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126 | |
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127 | MipSkeleton* MipSkeleton::newSolver() const |
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128 | { return static_cast<MipSkeleton*>(0); } |
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129 | |
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130 | MipSkeleton* MipSkeleton::cloneSolver() const |
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131 | { return static_cast<MipSkeleton*>(0); } |
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132 | |
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133 | const char* MipSkeleton::_solverName() const { return "MipSkeleton"; } |
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134 | |
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135 | } //namespace lemon |
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136 | |
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