/* -*- mode: C++; indent-tabs-mode: nil; -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library.

  *

  * Copyright (C) 2003-2008

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #include <lemon/lp_skeleton.h>

 ///\file

 ///\brief A skeleton file to implement LP solver interfaces

 namespace lemon {

   int SkeletonSolverBase::_addCol()

   {

     return ++col_num;

   }

   int SkeletonSolverBase::_addRow()

   {

     return ++row_num;

   }

   int SkeletonSolverBase::_addRow(Value, ExprIterator, ExprIterator, Value)

   {

     return ++row_num;

   }

   void SkeletonSolverBase::_eraseCol(int) {}

   void SkeletonSolverBase::_eraseRow(int) {}

   void SkeletonSolverBase::_getColName(int, std::string &) const {}

   void SkeletonSolverBase::_setColName(int, const std::string &) {}

   int SkeletonSolverBase::_colByName(const std::string&) const { return -1; }

   void SkeletonSolverBase::_getRowName(int, std::string &) const {}

   void SkeletonSolverBase::_setRowName(int, const std::string &) {}

   int SkeletonSolverBase::_rowByName(const std::string&) const { return -1; }

   void SkeletonSolverBase::_setRowCoeffs(int, ExprIterator, ExprIterator) {}

   void SkeletonSolverBase::_getRowCoeffs(int, InsertIterator) const {}

   void SkeletonSolverBase::_setColCoeffs(int, ExprIterator, ExprIterator) {}

   void SkeletonSolverBase::_getColCoeffs(int, InsertIterator) const {}

   void SkeletonSolverBase::_setCoeff(int, int, Value) {}

   SkeletonSolverBase::Value SkeletonSolverBase::_getCoeff(int, int) const

   { return 0; }

   void SkeletonSolverBase::_setColLowerBound(int, Value) {}

   SkeletonSolverBase::Value SkeletonSolverBase::_getColLowerBound(int) const

   {  return 0; }

   void SkeletonSolverBase::_setColUpperBound(int, Value) {}

   SkeletonSolverBase::Value SkeletonSolverBase::_getColUpperBound(int) const

   {  return 0; }

   void SkeletonSolverBase::_setRowLowerBound(int, Value) {}

   SkeletonSolverBase::Value SkeletonSolverBase::_getRowLowerBound(int) const

   {  return 0; }

   void SkeletonSolverBase::_setRowUpperBound(int, Value) {}

   SkeletonSolverBase::Value SkeletonSolverBase::_getRowUpperBound(int) const

   {  return 0; }

   void SkeletonSolverBase::_setObjCoeffs(ExprIterator, ExprIterator) {}

   void SkeletonSolverBase::_getObjCoeffs(InsertIterator) const {};

   void SkeletonSolverBase::_setObjCoeff(int, Value) {}

   SkeletonSolverBase::Value SkeletonSolverBase::_getObjCoeff(int) const

   {  return 0; }

   void SkeletonSolverBase::_setSense(Sense) {}

   SkeletonSolverBase::Sense SkeletonSolverBase::_getSense() const

   { return MIN; }

   void SkeletonSolverBase::_clear() {

     row_num = col_num = 0;

   }

   void SkeletonSolverBase::_messageLevel(MessageLevel) {}

   LpSkeleton::SolveExitStatus LpSkeleton::_solve() { return SOLVED; }

   LpSkeleton::Value LpSkeleton::_getPrimal(int) const { return 0; }

   LpSkeleton::Value LpSkeleton::_getDual(int) const { return 0; }

   LpSkeleton::Value LpSkeleton::_getPrimalValue() const { return 0; }

   LpSkeleton::Value LpSkeleton::_getPrimalRay(int) const { return 0; }

   LpSkeleton::Value LpSkeleton::_getDualRay(int) const { return 0; }

   LpSkeleton::ProblemType LpSkeleton::_getPrimalType() const

   { return UNDEFINED; }

   LpSkeleton::ProblemType LpSkeleton::_getDualType() const

   { return UNDEFINED; }

   LpSkeleton::VarStatus LpSkeleton::_getColStatus(int) const

   { return BASIC; }

   LpSkeleton::VarStatus LpSkeleton::_getRowStatus(int) const

   { return BASIC; }

   LpSkeleton* LpSkeleton::newSolver() const

   { return static_cast<LpSkeleton*>(0); }

   LpSkeleton* LpSkeleton::cloneSolver() const

   { return static_cast<LpSkeleton*>(0); }

   const char* LpSkeleton::_solverName() const { return "LpSkeleton"; }

   MipSkeleton::SolveExitStatus MipSkeleton::_solve()

   { return SOLVED; }

   MipSkeleton::Value MipSkeleton::_getSol(int) const { return 0; }

   MipSkeleton::Value MipSkeleton::_getSolValue() const { return 0; }

   MipSkeleton::ProblemType MipSkeleton::_getType() const

   { return UNDEFINED; }

   MipSkeleton* MipSkeleton::newSolver() const

   { return static_cast<MipSkeleton*>(0); }

   MipSkeleton* MipSkeleton::cloneSolver() const

   { return static_cast<MipSkeleton*>(0); }

   const char* MipSkeleton::_solverName() const { return "MipSkeleton"; }

 } //namespace lemon