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/* -*- C++ -*-
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* src/lemon/lp_solver_skeleton.h
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* - Part of LEMON, a generic C++ optimization library
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*
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* Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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* (Egervary Combinatorial Optimization Research Group, 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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#ifndef LEMON_LP_SOLVER_SKELETON
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#define LEMON_LP_SOLVER_SKELETON
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#include"lp_base.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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///A skeleton class to implement LP solver interfaces
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class LpSolverSkeleton :public LpSolverBase {
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int col_num,row_num;
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protected:
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/// \e
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virtual int _addCol();
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/// \e
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virtual int _addRow();
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/// \e
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/// \warning Arrays are indexed from 1 (datum at index 0 is ignored)
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///
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virtual void _setRowCoeffs(int i,
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int length,
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int const * indices,
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Value const * values );
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/// \e
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/// \warning Arrays are indexed from 1 (datum at index 0 is ignored)
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///
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virtual void _setColCoeffs(int i,
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int length,
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int const * indices,
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Value const * values );
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/// \e
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/// The lower bound of a variable (column) have to be given by an
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/// extended number of type Value, i.e. a finite number of type
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/// Value or -\ref INF.
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virtual void _setColLowerBound(int i, Value value);
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/// \e
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/// The upper bound of a variable (column) have to be given by an
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/// extended number of type Value, i.e. a finite number of type
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/// Value or \ref INF.
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virtual void _setColUpperBound(int i, Value value);
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/// \e
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/// The lower bound of a linear expression (row) have to be given by an
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/// extended number of type Value, i.e. a finite number of type
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/// Value or -\ref INF.
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virtual void _setRowLowerBound(int i, Value value);
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/// \e
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/// The upper bound of a linear expression (row) have to be given by an
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/// extended number of type Value, i.e. a finite number of type
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/// Value or \ref INF.
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virtual void _setRowUpperBound(int i, Value value);
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/// \e
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virtual void _setObjCoeff(int i, Value obj_coef);
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///\e
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///\bug Wrong interface
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///
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virtual SolveExitStatus _solve();
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///\e
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///\bug Wrong interface
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///
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virtual Value _getPrimal(int i);
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///\e
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///\bug Wrong interface
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///
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virtual SolutionStatus _getPrimalType();
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public:
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LpSolverSkeleton() : LpSolverBase(), col_num(0), row_num(0) {}
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};
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} //namespace lemon
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#endif // LEMON_LP_SOLVER_SKELETON
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