lemon/lp_skeleton.cc
author Balazs Dezso <deba@inf.elte.hu>
Thu, 04 Mar 2010 15:20:59 +0100
changeset 951 41d7ac528c3a
parent 587 9db62975c32b
child 793 e4554cd6b2bf
child 1081 f1398882a928
permissions -rw-r--r--
Uniforming primal scale to 2 (#314)
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/* -*- mode: C++; indent-tabs-mode: nil; -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library.
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 *
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 * Copyright (C) 2003-2008
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
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#include <lemon/lp_skeleton.h>
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///\file
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///\brief A skeleton file to implement LP solver interfaces
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namespace lemon {
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  int SkeletonSolverBase::_addCol()
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  {
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    return ++col_num;
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  }
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  int SkeletonSolverBase::_addRow()
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  {
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    return ++row_num;
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  }
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  void SkeletonSolverBase::_eraseCol(int) {}
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  void SkeletonSolverBase::_eraseRow(int) {}
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  void SkeletonSolverBase::_getColName(int, std::string &) const {}
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  void SkeletonSolverBase::_setColName(int, const std::string &) {}
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  int SkeletonSolverBase::_colByName(const std::string&) const { return -1; }
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  void SkeletonSolverBase::_getRowName(int, std::string &) const {}
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  void SkeletonSolverBase::_setRowName(int, const std::string &) {}
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  int SkeletonSolverBase::_rowByName(const std::string&) const { return -1; }
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  void SkeletonSolverBase::_setRowCoeffs(int, ExprIterator, ExprIterator) {}
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  void SkeletonSolverBase::_getRowCoeffs(int, InsertIterator) const {}
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  void SkeletonSolverBase::_setColCoeffs(int, ExprIterator, ExprIterator) {}
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  void SkeletonSolverBase::_getColCoeffs(int, InsertIterator) const {}
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  void SkeletonSolverBase::_setCoeff(int, int, Value) {}
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  SkeletonSolverBase::Value SkeletonSolverBase::_getCoeff(int, int) const
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  { return 0; }
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  void SkeletonSolverBase::_setColLowerBound(int, Value) {}
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  SkeletonSolverBase::Value SkeletonSolverBase::_getColLowerBound(int) const
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  {  return 0; }
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  void SkeletonSolverBase::_setColUpperBound(int, Value) {}
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  SkeletonSolverBase::Value SkeletonSolverBase::_getColUpperBound(int) const
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  {  return 0; }
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  void SkeletonSolverBase::_setRowLowerBound(int, Value) {}
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  SkeletonSolverBase::Value SkeletonSolverBase::_getRowLowerBound(int) const
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  {  return 0; }
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  void SkeletonSolverBase::_setRowUpperBound(int, Value) {}
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  SkeletonSolverBase::Value SkeletonSolverBase::_getRowUpperBound(int) const
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  {  return 0; }
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  void SkeletonSolverBase::_setObjCoeffs(ExprIterator, ExprIterator) {}
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  void SkeletonSolverBase::_getObjCoeffs(InsertIterator) const {};
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  void SkeletonSolverBase::_setObjCoeff(int, Value) {}
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  SkeletonSolverBase::Value SkeletonSolverBase::_getObjCoeff(int) const
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  {  return 0; }
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  void SkeletonSolverBase::_setSense(Sense) {}
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  SkeletonSolverBase::Sense SkeletonSolverBase::_getSense() const
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  { return MIN; }
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  void SkeletonSolverBase::_clear() {
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    row_num = col_num = 0;
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  }
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  void SkeletonSolverBase::_messageLevel(MessageLevel) {}
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  LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; }
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  LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; }
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  LpSkeleton::Value LpSkeleton::_getDual(int) const { return 0; }
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  LpSkeleton::Value LpSkeleton::_getPrimalValue() const { return 0; }
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  LpSkeleton::Value LpSkeleton::_getPrimalRay(int) const { return 0; }
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  LpSkeleton::Value LpSkeleton::_getDualRay(int) const { return 0; }
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  LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const
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  { return UNDEFINED; }
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  LpSkeleton::ProblemType LpSkeleton::_getDualType() const
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  { return UNDEFINED; }
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  LpSkeleton::VarStatus LpSkeleton::_getColStatus(int) const
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  { return BASIC; }
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  LpSkeleton::VarStatus LpSkeleton::_getRowStatus(int) const
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  { return BASIC; }
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  LpSkeleton* LpSkeleton::newSolver() const
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  { return static_cast<LpSkeleton*>(0); }
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  LpSkeleton* LpSkeleton::cloneSolver() const
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  { return static_cast<LpSkeleton*>(0); }
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  const char* LpSkeleton::_solverName() const { return "LpSkeleton"; }
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  MipSkeleton::SolveExitStatus MipSkeleton::_solve()
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  { return SOLVED; }
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  MipSkeleton::Value MipSkeleton::_getSol(int) const { return 0; }
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  MipSkeleton::Value MipSkeleton::_getSolValue() const { return 0; }
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  MipSkeleton::ProblemType MipSkeleton::_getType() const
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  { return UNDEFINED; }
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  MipSkeleton* MipSkeleton::newSolver() const
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  { return static_cast<MipSkeleton*>(0); }
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  MipSkeleton* MipSkeleton::cloneSolver() const
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  { return static_cast<MipSkeleton*>(0); }
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  const char* MipSkeleton::_solverName() const { return "MipSkeleton"; }
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} //namespace lemon
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