[458] | 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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[459] | 25 | int SkeletonSolverBase::_addCol() |
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[458] | 26 | { |
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| 27 | return ++col_num; |
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| 28 | } |
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| 29 | |
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[459] | 30 | int SkeletonSolverBase::_addRow() |
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[458] | 31 | { |
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| 32 | return ++row_num; |
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| 33 | } |
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| 34 | |
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[459] | 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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[458] | 85 | } |
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| 86 | |
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[459] | 87 | LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; } |
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[458] | 88 | |
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[459] | 89 | LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; } |
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| 90 | LpSkeleton::Value LpSkeleton::_getDual(int) const { return 0; } |
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| 91 | LpSkeleton::Value LpSkeleton::_getPrimalValue() const { return 0; } |
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[458] | 92 | |
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[459] | 93 | LpSkeleton::Value LpSkeleton::_getPrimalRay(int) const { return 0; } |
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| 94 | LpSkeleton::Value LpSkeleton::_getDualRay(int) const { return 0; } |
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[458] | 95 | |
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[459] | 96 | LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const |
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| 97 | { return UNDEFINED; } |
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[458] | 98 | |
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[459] | 99 | LpSkeleton::ProblemType LpSkeleton::_getDualType() const |
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| 100 | { return UNDEFINED; } |
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[458] | 101 | |
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[459] | 102 | LpSkeleton::VarStatus LpSkeleton::_getColStatus(int) const |
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| 103 | { return BASIC; } |
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[458] | 104 | |
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[459] | 105 | LpSkeleton::VarStatus LpSkeleton::_getRowStatus(int) const |
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| 106 | { return BASIC; } |
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[458] | 107 | |
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[540] | 108 | LpSkeleton* LpSkeleton::newSolver() const |
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[459] | 109 | { return static_cast<LpSkeleton*>(0); } |
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[458] | 110 | |
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[540] | 111 | LpSkeleton* LpSkeleton::cloneSolver() const |
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[459] | 112 | { return static_cast<LpSkeleton*>(0); } |
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[458] | 113 | |
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[459] | 114 | const char* LpSkeleton::_solverName() const { return "LpSkeleton"; } |
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[458] | 115 | |
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[459] | 116 | MipSkeleton::SolveExitStatus MipSkeleton::_solve() |
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| 117 | { return SOLVED; } |
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[458] | 118 | |
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[459] | 119 | MipSkeleton::Value MipSkeleton::_getSol(int) const { return 0; } |
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| 120 | MipSkeleton::Value MipSkeleton::_getSolValue() const { return 0; } |
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[458] | 121 | |
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[459] | 122 | MipSkeleton::ProblemType MipSkeleton::_getType() const |
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| 123 | { return UNDEFINED; } |
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[458] | 124 | |
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[540] | 125 | MipSkeleton* MipSkeleton::newSolver() const |
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[459] | 126 | { return static_cast<MipSkeleton*>(0); } |
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[458] | 127 | |
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[540] | 128 | MipSkeleton* MipSkeleton::cloneSolver() const |
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[459] | 129 | { return static_cast<MipSkeleton*>(0); } |
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[458] | 130 | |
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[459] | 131 | const char* MipSkeleton::_solverName() const { return "MipSkeleton"; } |
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[458] | 132 | |
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| 133 | } //namespace lemon |
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| 134 | |
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