LEMON/LEMON-main Changeset - r576:745e182d0139

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Changeset - r576:745e182d0139

« 573:37216c

577:556352 »

r576:745e182d0139

Wed, 08 Apr 2009 22:49:28

[Not Reviewed]

0 comments (0 inline)

deba@inf.elte.hu
deba@inf.elte.hu

Unified message handling for LP and MIP solvers (#9)

0 13 0

default

13 files changed with 184 insertions and 189 deletions:

lemon/cbc.cc

lemon/cbc.h

lemon/clp.cc

lemon/clp.h

lemon/cplex.cc

lemon/cplex.h

lemon/glpk.cc

lemon/glpk.h

lemon/lp_base.h

lemon/lp_skeleton.cc

lemon/lp_skeleton.h

lemon/soplex.cc

lemon/soplex.h

↑ Collapse diff ↑

lemon/cbc.cc

Show inline comments

@@ -26,70 +26,73 @@
 		#include <coin/OsiSolverInterface.hpp>
 		#ifdef COIN_HAS_CLP
 		#include "coin/OsiClpSolverInterface.hpp"
 		#endif
 		#ifdef COIN_HAS_OSL
 		#include "coin/OsiOslSolverInterface.hpp"
 		#endif
 		#include "coin/CbcCutGenerator.hpp"
 		#include "coin/CbcHeuristicLocal.hpp"
 		#include "coin/CbcHeuristicGreedy.hpp"
 		#include "coin/CbcHeuristicFPump.hpp"
 		#include "coin/CbcHeuristicRINS.hpp"
 		#include "coin/CglGomory.hpp"
 		#include "coin/CglProbing.hpp"
 		#include "coin/CglKnapsackCover.hpp"
 		#include "coin/CglOddHole.hpp"
 		#include "coin/CglClique.hpp"
 		#include "coin/CglFlowCover.hpp"
 		#include "coin/CglMixedIntegerRounding.hpp"
 		#include "coin/CbcHeuristic.hpp"
 		namespace lemon {
 		  CbcMip::CbcMip() {
 		    _prob = new CoinModel();
 		    _prob->setProblemName("LEMON");
 		    _osi_solver = 0;
 		    _cbc_model = 0;
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  CbcMip::CbcMip(const CbcMip& other) {
 		    _prob = new CoinModel(*other._prob);
 		    _prob->setProblemName("LEMON");
 		    _osi_solver = 0;
 		    _cbc_model = 0;
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  CbcMip::~CbcMip() {
 		    delete _prob;
 		    if (_osi_solver) delete _osi_solver;
 		    if (_cbc_model) delete _cbc_model;
+		  }
 		  const char* CbcMip::_solverName() const { return "CbcMip"; }
 		  int CbcMip::_addCol() {
 		    _prob->addColumn(0, 0, 0, -COIN_DBL_MAX, COIN_DBL_MAX, 0.0, 0, false);
 		    return _prob->numberColumns() - 1;
+		  }
 		  CbcMip* CbcMip::newSolver() const {
 		    CbcMip* newlp = new CbcMip;
 		    return newlp;
+		  }
 		  CbcMip* CbcMip::cloneSolver() const {
 		    CbcMip* copylp = new CbcMip(*this);
 		    return copylp;
+		  }
 		  int CbcMip::_addRow() {
 		    _prob->addRow(0, 0, 0, -COIN_DBL_MAX, COIN_DBL_MAX);
 		    return _prob->numberRows() - 1;
+		  }
 		  void CbcMip::_eraseCol(int i) {
@@ -241,82 +244,66 @@
+		      }
+		    }
+		  }
 		  void CbcMip::_setObjCoeff(int i, Value obj_coef) {
 		    _prob->setColumnObjective(i, obj_coef);
+		  }
 		  CbcMip::Value CbcMip::_getObjCoeff(int i) const {
 		    return _prob->getColumnObjective(i);
+		  }
 		  CbcMip::SolveExitStatus CbcMip::_solve() {
 		    if (_osi_solver) {
 		      delete _osi_solver;
+		    }
 		#ifdef COIN_HAS_CLP
 		    _osi_solver = new OsiClpSolverInterface();
 		#elif COIN_HAS_OSL
 		    _osi_solver = new OsiOslSolverInterface();
 		#else
 		#error Cannot instantiate Osi solver
 		#endif
 		    _osi_solver->loadFromCoinModel(*_prob);
 		    if (_cbc_model) {
 		      delete _cbc_model;
+		    }
 		    _cbc_model= new CbcModel(*_osi_solver);
 		    switch (_message_level) {
 		    case MESSAGE_NO_OUTPUT:
 		      _osi_solver->messageHandler()->setLogLevel(0);
 		      _cbc_model->setLogLevel(0);
 		      break;
 		    case MESSAGE_ERROR_MESSAGE:
 		      _osi_solver->messageHandler()->setLogLevel(1);
 		      _cbc_model->setLogLevel(1);
 		      break;
 		    case MESSAGE_NORMAL_OUTPUT:
 		      _osi_solver->messageHandler()->setLogLevel(2);
 		      _cbc_model->setLogLevel(2);
 		      break;
 		    case MESSAGE_FULL_OUTPUT:
 		      _osi_solver->messageHandler()->setLogLevel(3);
 		      _cbc_model->setLogLevel(3);
 		      break;
+		    }
 		    _osi_solver->messageHandler()->setLogLevel(_message_level);
 		    _cbc_model->setLogLevel(_message_level);
 		    _cbc_model->initialSolve();
 		    _cbc_model->solver()->setHintParam(OsiDoReducePrint, true, OsiHintTry);
 		    if (!_cbc_model->isInitialSolveAbandoned() &&
 		        _cbc_model->isInitialSolveProvenOptimal() &&
 		        !_cbc_model->isInitialSolveProvenPrimalInfeasible() &&
 		        !_cbc_model->isInitialSolveProvenDualInfeasible()) {
 		      CglProbing generator1;
 		      generator1.setUsingObjective(true);
 		      generator1.setMaxPass(3);
 		      generator1.setMaxProbe(100);
 		      generator1.setMaxLook(50);
 		      generator1.setRowCuts(3);
 		      _cbc_model->addCutGenerator(&generator1, -1, "Probing");
 		      CglGomory generator2;
 		      generator2.setLimit(300);
 		      _cbc_model->addCutGenerator(&generator2, -1, "Gomory");
 		      CglKnapsackCover generator3;
 		      _cbc_model->addCutGenerator(&generator3, -1, "Knapsack");
 		      CglOddHole generator4;
 		      generator4.setMinimumViolation(0.005);
 		      generator4.setMinimumViolationPer(0.00002);
 		      generator4.setMaximumEntries(200);
 		      _cbc_model->addCutGenerator(&generator4, -1, "OddHole");
 		      CglClique generator5;
 		      generator5.setStarCliqueReport(false);
@@ -424,37 +411,53 @@
 		    switch (col_type){
 		    case INTEGER:
 		      _prob->setInteger(i);
 		      break;
 		    case REAL:
 		      _prob->setContinuous(i);
 		      break;
 		    default:;
 		      LEMON_ASSERT(false, "Wrong sense");
+		    }
+		  }
 		  CbcMip::ColTypes CbcMip::_getColType(int i) const {
 		    return _prob->getColumnIsInteger(i) ? INTEGER : REAL;
+		  }
 		  void CbcMip::_clear() {
 		    delete _prob;
 		    if (_osi_solver) {
 		      delete _osi_solver;
 		      _osi_solver = 0;
+		    }
 		    if (_cbc_model) {
 		      delete _cbc_model;
 		      _cbc_model = 0;
+		    }
 		    _prob = new CoinModel();
 		    rows.clear();
 		    cols.clear();
+		  }
 		  void CbcMip::messageLevel(MessageLevel m) {
 		    _message_level = m;
 		  void CbcMip::_messageLevel(MessageLevel level) {
 		    switch (level) {
 		    case MESSAGE_NOTHING:
 		      _message_level = 0;
 		      break;
 		    case MESSAGE_ERROR:
 		      _message_level = 1;
 		      break;
 		    case MESSAGE_WARNING:
 		      _message_level = 1;
 		      break;
 		    case MESSAGE_NORMAL:
 		      _message_level = 2;
 		      break;
 		    case MESSAGE_VERBOSE:
 		      _message_level = 3;
 		      break;
+		    }
+		  }
 		} //END OF NAMESPACE LEMON

lemon/cbc.h

Show inline comments

@@ -86,65 +86,44 @@
 		    virtual void _setCoeff(int row, int col, Value value);
 		    virtual Value _getCoeff(int row, int col) const;
 		    virtual void _setColLowerBound(int i, Value value);
 		    virtual Value _getColLowerBound(int i) const;
 		    virtual void _setColUpperBound(int i, Value value);
 		    virtual Value _getColUpperBound(int i) const;
 		    virtual void _setRowLowerBound(int i, Value value);
 		    virtual Value _getRowLowerBound(int i) const;
 		    virtual void _setRowUpperBound(int i, Value value);
 		    virtual Value _getRowUpperBound(int i) const;
 		    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
 		    virtual void _getObjCoeffs(InsertIterator b) const;
 		    virtual void _setObjCoeff(int i, Value obj_coef);
 		    virtual Value _getObjCoeff(int i) const;
 		    virtual void _setSense(Sense sense);
 		    virtual Sense _getSense() const;
 		    virtual ColTypes _getColType(int col) const;
 		    virtual void _setColType(int col, ColTypes col_type);
 		    virtual SolveExitStatus _solve();
 		    virtual ProblemType _getType() const;
 		    virtual Value _getSol(int i) const;
 		    virtual Value _getSolValue() const;
 		    virtual void _clear();
-		  public:
+		    virtual void _messageLevel(MessageLevel level);
 		    void _applyMessageLevel();
 		    ///Enum for \c messageLevel() parameter
 		    enum MessageLevel {
 		      /// no output (default value)
 		      MESSAGE_NO_OUTPUT = 0,
 		      /// error messages only
 		      MESSAGE_ERROR_MESSAGE = 1,
 		      /// normal output
 		      MESSAGE_NORMAL_OUTPUT = 2,
 		      /// full output (includes informational messages)
 		      MESSAGE_FULL_OUTPUT = 3
-		    };
+		    int _message_level;
 		  private:
 		    MessageLevel _message_level;
 		  public:
 		    ///Set the verbosity of the messages
 		    ///Set the verbosity of the messages
 		    ///
 		    ///\param m is the level of the messages output by the solver routines.
 		    void messageLevel(MessageLevel m);
 		  };
+		}
 		#endif

lemon/clp.cc

Show inline comments

 		/* -*- 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/clp.h>
 		#include <coin/ClpSimplex.hpp>
 		namespace lemon {
 		  ClpLp::ClpLp() {
 		    _prob = new ClpSimplex();
 		    _init_temporals();
-		    messageLevel(MESSAGE_NO_OUTPUT);
+		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  ClpLp::ClpLp(const ClpLp& other) {
 		    _prob = new ClpSimplex(*other._prob);
 		    rows = other.rows;
 		    cols = other.cols;
 		    _init_temporals();
-		    messageLevel(MESSAGE_NO_OUTPUT);
+		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  ClpLp::~ClpLp() {
 		    delete _prob;
 		    _clear_temporals();
+		  }
 		  void ClpLp::_init_temporals() {
 		    _primal_ray = 0;
 		    _dual_ray = 0;
+		  }
 		  void ClpLp::_clear_temporals() {
 		    if (_primal_ray) {
 		      delete[] _primal_ray;
 		      _primal_ray = 0;
+		    }
 		    if (_dual_ray) {
 		      delete[] _dual_ray;
 		      _dual_ray = 0;
+		    }
+		  }
 		  ClpLp* ClpLp::newSolver() const {
 		    ClpLp* newlp = new ClpLp;
 		    return newlp;
+		  }
 		  ClpLp* ClpLp::cloneSolver() const {
 		    ClpLp* copylp = new ClpLp(*this);
 		    return copylp;
+		  }
@@ -401,37 +401,53 @@
+		    }
+		  }
 		  void ClpLp::_setSense(ClpLp::Sense sense) {
 		    switch (sense) {
 		    case MIN:
 		      _prob->setOptimizationDirection(1);
 		      break;
 		    case MAX:
 		      _prob->setOptimizationDirection(-1);
 		      break;
+		    }
+		  }
 		  ClpLp::Sense ClpLp::_getSense() const {
 		    double dir = _prob->optimizationDirection();
 		    if (dir > 0.0) {
 		      return MIN;
 		    } else {
 		      return MAX;
+		    }
+		  }
 		  void ClpLp::_clear() {
 		    delete _prob;
 		    _prob = new ClpSimplex();
 		    rows.clear();
 		    cols.clear();
 		    _col_names_ref.clear();
 		    _clear_temporals();
+		  }
 		  void ClpLp::messageLevel(MessageLevel m) {
 		    _prob->setLogLevel(static_cast<int>(m));
 		  void ClpLp::_messageLevel(MessageLevel level) {
 		    switch (level) {
 		    case MESSAGE_NOTHING:
 		      _prob->setLogLevel(0);
 		      break;
 		    case MESSAGE_ERROR:
 		      _prob->setLogLevel(1);
 		      break;
 		    case MESSAGE_WARNING:
 		      _prob->setLogLevel(2);
 		      break;
 		    case MESSAGE_NORMAL:
 		      _prob->setLogLevel(3);
 		      break;
 		    case MESSAGE_VERBOSE:
 		      _prob->setLogLevel(4);
 		      break;
+		    }
+		  }
 		} //END OF NAMESPACE LEMON

lemon/clp.h

Show inline comments

@@ -107,75 +107,57 @@
 		    virtual void _setRowLowerBound(int i, Value value);
 		    virtual Value _getRowLowerBound(int i) const;
 		    virtual void _setRowUpperBound(int i, Value value);
 		    virtual Value _getRowUpperBound(int i) const;
 		    virtual void _setObjCoeffs(ExprIterator, ExprIterator);
 		    virtual void _getObjCoeffs(InsertIterator) const;
 		    virtual void _setObjCoeff(int i, Value obj_coef);
 		    virtual Value _getObjCoeff(int i) const;
 		    virtual void _setSense(Sense sense);
 		    virtual Sense _getSense() const;
 		    virtual SolveExitStatus _solve();
 		    virtual Value _getPrimal(int i) const;
 		    virtual Value _getDual(int i) const;
 		    virtual Value _getPrimalValue() const;
 		    virtual Value _getPrimalRay(int i) const;
 		    virtual Value _getDualRay(int i) const;
 		    virtual VarStatus _getColStatus(int i) const;
 		    virtual VarStatus _getRowStatus(int i) const;
 		    virtual ProblemType _getPrimalType() const;
 		    virtual ProblemType _getDualType() const;
 		    virtual void _clear();
 		    virtual void _messageLevel(MessageLevel);
 		  public:
 		    ///Solves LP with primal simplex method.
 		    SolveExitStatus solvePrimal();
 		    ///Solves LP with dual simplex method.
 		    SolveExitStatus solveDual();
 		    ///Solves LP with barrier method.
 		    SolveExitStatus solveBarrier();
 		    ///Returns the constraint identifier understood by CLP.
 		    int clpRow(Row r) const { return rows(id(r)); }
 		    ///Returns the variable identifier understood by CLP.
 		    int clpCol(Col c) const { return cols(id(c)); }
 		    ///Enum for \c messageLevel() parameter
 		    enum MessageLevel {
 		      /// no output (default value)
 		      MESSAGE_NO_OUTPUT = 0,
 		      /// print final solution
 		      MESSAGE_FINAL_SOLUTION = 1,
 		      /// print factorization
 		      MESSAGE_FACTORIZATION = 2,
 		      /// normal output
 		      MESSAGE_NORMAL_OUTPUT = 3,
 		      /// verbose output
 		      MESSAGE_VERBOSE_OUTPUT = 4
 		    };
 		    ///Set the verbosity of the messages
 		    ///Set the verbosity of the messages
 		    ///
 		    ///\param m is the level of the messages output by the solver routines.
 		    void messageLevel(MessageLevel m);
 		  };
 		} //END OF NAMESPACE LEMON
 		#endif //LEMON_CLP_H

lemon/cplex.cc

Show inline comments

@@ -43,78 +43,81 @@
 		    _env = CPXopenCPLEX(&status);
 		    if (_env == 0) {
 		      delete _cnt;
 		      _cnt = 0;
 		      throw LicenseError(status);
+		    }
+		  }
 		  CplexEnv::CplexEnv(const CplexEnv& other) {
 		    _env = other._env;
 		    _cnt = other._cnt;
 		    ++(*_cnt);
+		  }
 		  CplexEnv& CplexEnv::operator=(const CplexEnv& other) {
 		    _env = other._env;
 		    _cnt = other._cnt;
 		    ++(*_cnt);
 		    return *this;
+		  }
 		  CplexEnv::~CplexEnv() {
 		    --(*_cnt);
 		    if (*_cnt == 0) {
 		      delete _cnt;
 		      CPXcloseCPLEX(&_env);
+		    }
+		  }
 		  CplexBase::CplexBase() : LpBase() {
 		    int status;
 		    _prob = CPXcreateprob(cplexEnv(), &status, "Cplex problem");
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  CplexBase::CplexBase(const CplexEnv& env)
 		    : LpBase(), _env(env) {
 		    int status;
 		    _prob = CPXcreateprob(cplexEnv(), &status, "Cplex problem");
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  CplexBase::CplexBase(const CplexBase& cplex)
 		    : LpBase() {
 		    int status;
 		    _prob = CPXcloneprob(cplexEnv(), cplex._prob, &status);
 		    rows = cplex.rows;
 		    cols = cplex.cols;
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  CplexBase::~CplexBase() {
 		    CPXfreeprob(cplexEnv(),&_prob);
+		  }
 		  int CplexBase::_addCol() {
 		    int i = CPXgetnumcols(cplexEnv(), _prob);
 		    double lb = -INF, ub = INF;
 		    CPXnewcols(cplexEnv(), _prob, 1, 0, &lb, &ub, 0, 0);
 		    return i;
+		  }
 		  int CplexBase::_addRow() {
 		    int i = CPXgetnumrows(cplexEnv(), _prob);
 		    const double ub = INF;
 		    const char s = 'L';
 		    CPXnewrows(cplexEnv(), _prob, 1, &ub, &s, 0, 0);
 		    return i;
+		  }
 		  void CplexBase::_eraseCol(int i) {
 		    CPXdelcols(cplexEnv(), _prob, i, i);
+		  }
 		  void CplexBase::_eraseRow(int i) {
 		    CPXdelrows(cplexEnv(), _prob, i, i);
+		  }
 		  void CplexBase::_eraseColId(int i) {
@@ -409,64 +412,83 @@
 		  void CplexBase::_setSense(CplexBase::Sense sense) {
 		    switch (sense) {
 		    case MIN:
 		      CPXchgobjsen(cplexEnv(), _prob, CPX_MIN);
 		      break;
 		    case MAX:
 		      CPXchgobjsen(cplexEnv(), _prob, CPX_MAX);
 		      break;
+		    }
+		  }
 		  CplexBase::Sense CplexBase::_getSense() const {
 		    switch (CPXgetobjsen(cplexEnv(), _prob)) {
 		    case CPX_MIN:
 		      return MIN;
 		    case CPX_MAX:
 		      return MAX;
 		    default:
 		      LEMON_ASSERT(false, "Invalid sense");
 		      return CplexBase::Sense();
+		    }
+		  }
 		  void CplexBase::_clear() {
 		    CPXfreeprob(cplexEnv(),&_prob);
 		    int status;
 		    _prob = CPXcreateprob(cplexEnv(), &status, "Cplex problem");
 		    rows.clear();
 		    cols.clear();
+		  }
 		  void CplexBase::_messageLevel(MessageLevel level) {
 		    switch (level) {
 		    case MESSAGE_NOTHING:
 		      _message_enabled = false;
 		      break;
 		    case MESSAGE_ERROR:
 		    case MESSAGE_WARNING:
 		    case MESSAGE_NORMAL:
 		    case MESSAGE_VERBOSE:
 		      _message_enabled = true;
 		      break;
+		    }
+		  }
 		  void CplexBase::_applyMessageLevel() {
 		    CPXsetintparam(cplexEnv(), CPX_PARAM_SCRIND,
 		                   _message_enabled ? CPX_ON : CPX_OFF);
+		  }
 		  // CplexLp members
 		  CplexLp::CplexLp()
 		    : LpBase(), LpSolver(), CplexBase() {}
 		  CplexLp::CplexLp(const CplexEnv& env)
 		    : LpBase(), LpSolver(), CplexBase(env) {}
 		  CplexLp::CplexLp(const CplexLp& other)
 		    : LpBase(), LpSolver(), CplexBase(other) {}
 		  CplexLp::~CplexLp() {}
 		  CplexLp* CplexLp::newSolver() const { return new CplexLp; }
 		  CplexLp* CplexLp::cloneSolver() const {return new CplexLp(*this); }
 		  const char* CplexLp::_solverName() const { return "CplexLp"; }
 		  void CplexLp::_clear_temporals() {
 		    _col_status.clear();
 		    _row_status.clear();
 		    _primal_ray.clear();
 		    _dual_ray.clear();
+		  }
 		  // The routine returns zero unless an error occurred during the
 		  // optimization. Examples of errors include exhausting available
 		  // memory (CPXERR_NO_MEMORY) or encountering invalid data in the
 		  // CPLEX problem object (CPXERR_NO_PROBLEM). Exceeding a
 		  // user-specified CPLEX limit, or proving the model infeasible or
 		  // unbounded, are not considered errors. Note that a zero return
 		  // value does not necessarily mean that a solution exists. Use query
@@ -478,79 +500,83 @@
 		      switch (CPXgetstat(cplexEnv(), _prob)) {
 		      case CPX_STAT_OPTIMAL:
 		      case CPX_STAT_INFEASIBLE:
 		      case CPX_STAT_UNBOUNDED:
 		        return SOLVED;
 		      default:
 		        return UNSOLVED;
+		      }
 		    } else {
 		      return UNSOLVED;
+		    }
 		#else
 		    if (status == 0) {
 		      //We want to exclude some cases
 		      switch (CPXgetstat(cplexEnv(), _prob)) {
 		      case CPX_OBJ_LIM:
 		      case CPX_IT_LIM_FEAS:
 		      case CPX_IT_LIM_INFEAS:
 		      case CPX_TIME_LIM_FEAS:
 		      case CPX_TIME_LIM_INFEAS:
 		        return UNSOLVED;
 		      default:
 		        return SOLVED;
+		      }
 		    } else {
 		      return UNSOLVED;
+		    }
 		#endif
+		  }
 		  CplexLp::SolveExitStatus CplexLp::_solve() {
 		    _clear_temporals();
 		    _applyMessageLevel();
 		    return convertStatus(CPXlpopt(cplexEnv(), _prob));
+		  }
 		  CplexLp::SolveExitStatus CplexLp::solvePrimal() {
 		    _clear_temporals();
 		    _applyMessageLevel();
 		    return convertStatus(CPXprimopt(cplexEnv(), _prob));
+		  }
 		  CplexLp::SolveExitStatus CplexLp::solveDual() {
 		    _clear_temporals();
 		    _applyMessageLevel();
 		    return convertStatus(CPXdualopt(cplexEnv(), _prob));
+		  }
 		  CplexLp::SolveExitStatus CplexLp::solveBarrier() {
 		    _clear_temporals();
 		    _applyMessageLevel();
 		    return convertStatus(CPXbaropt(cplexEnv(), _prob));
+		  }
 		  CplexLp::Value CplexLp::_getPrimal(int i) const {
 		    Value x;
 		    CPXgetx(cplexEnv(), _prob, &x, i, i);
 		    return x;
+		  }
 		  CplexLp::Value CplexLp::_getDual(int i) const {
 		    Value y;
 		    CPXgetpi(cplexEnv(), _prob, &y, i, i);
 		    return y;
+		  }
 		  CplexLp::Value CplexLp::_getPrimalValue() const {
 		    Value objval;
 		    CPXgetobjval(cplexEnv(), _prob, &objval);
 		    return objval;
+		  }
 		  CplexLp::VarStatus CplexLp::_getColStatus(int i) const {
 		    if (_col_status.empty()) {
 		      _col_status.resize(CPXgetnumcols(cplexEnv(), _prob));
 		      CPXgetbase(cplexEnv(), _prob, &_col_status.front(), 0);
+		    }
 		    switch (_col_status[i]) {
 		    case CPX_BASIC:
 		      return BASIC;
 		    case CPX_FREE_SUPER:
 		      return FREE;
 		    case CPX_AT_LOWER:
@@ -571,112 +597,112 @@
 		    switch (_row_status[i]) {
 		    case CPX_BASIC:
 		      return BASIC;
 		    case CPX_AT_LOWER:
+		      {
 		        char s;
 		        CPXgetsense(cplexEnv(), _prob, &s, i, i);
 		        return s != 'L' ? LOWER : UPPER;
+		      }
 		    case CPX_AT_UPPER:
 		      return UPPER;
 		    default:
 		      LEMON_ASSERT(false, "Wrong row status");
 		      return CplexLp::VarStatus();
+		    }
+		  }
 		  CplexLp::Value CplexLp::_getPrimalRay(int i) const {
 		    if (_primal_ray.empty()) {
 		      _primal_ray.resize(CPXgetnumcols(cplexEnv(), _prob));
 		      CPXgetray(cplexEnv(), _prob, &_primal_ray.front());
+		    }
 		    return _primal_ray[i];
+		  }
 		  CplexLp::Value CplexLp::_getDualRay(int i) const {
 		    if (_dual_ray.empty()) {
+		    }
 		    return _dual_ray[i];
+		  }
-		  //7.5-os cplex statusai (Vigyazat: a 9.0-asei masok!)
+		  // Cplex 7.0 status values
 		  // This table lists the statuses, returned by the CPXgetstat()
 		  // routine, for solutions to LP problems or mixed integer problems. If
 		  // no solution exists, the return value is zero.
 		  // For Simplex, Barrier
 		  // 1          CPX_OPTIMAL
 		  //          Optimal solution found
 		  // 2          CPX_INFEASIBLE
 		  //          Problem infeasible
 		  // 3    CPX_UNBOUNDED
 		  //          Problem unbounded
 		  // 4          CPX_OBJ_LIM
 		  //          Objective limit exceeded in Phase II
 		  // 5          CPX_IT_LIM_FEAS
 		  //          Iteration limit exceeded in Phase II
 		  // 6          CPX_IT_LIM_INFEAS
 		  //          Iteration limit exceeded in Phase I
 		  // 7          CPX_TIME_LIM_FEAS
 		  //          Time limit exceeded in Phase II
 		  // 8          CPX_TIME_LIM_INFEAS
 		  //          Time limit exceeded in Phase I
 		  // 9          CPX_NUM_BEST_FEAS
 		  //          Problem non-optimal, singularities in Phase II
 		  // 10         CPX_NUM_BEST_INFEAS
 		  //          Problem non-optimal, singularities in Phase I
 		  // 11         CPX_OPTIMAL_INFEAS
 		  //          Optimal solution found, unscaled infeasibilities
 		  // 12         CPX_ABORT_FEAS
 		  //          Aborted in Phase II
 		  // 13         CPX_ABORT_INFEAS
 		  //          Aborted in Phase I
 		  // 14          CPX_ABORT_DUAL_INFEAS
 		  //          Aborted in barrier, dual infeasible
 		  // 15          CPX_ABORT_PRIM_INFEAS
 		  //          Aborted in barrier, primal infeasible
 		  // 16          CPX_ABORT_PRIM_DUAL_INFEAS
 		  //          Aborted in barrier, primal and dual infeasible
 		  // 17          CPX_ABORT_PRIM_DUAL_FEAS
 		  //          Aborted in barrier, primal and dual feasible
 		  // 18          CPX_ABORT_CROSSOVER
 		  //          Aborted in crossover
 		  // 19          CPX_INForUNBD
 		  //          Infeasible or unbounded
 		  // 20   CPX_PIVOT
 		  //       User pivot used
 		  //
-		  //     Ezeket hova tegyem:
+		  // Pending return values
 		  // ??case CPX_ABORT_DUAL_INFEAS
 		  // ??case CPX_ABORT_CROSSOVER
 		  // ??case CPX_INForUNBD
 		  // ??case CPX_PIVOT
 		  //Some more interesting stuff:
 		  // CPX_PARAM_PROBMETHOD  1062  int  LPMETHOD
 		  // 0 Automatic
 		  // 1 Primal Simplex
 		  // 2 Dual Simplex
 		  // 3 Network Simplex
 		  // 4 Standard Barrier
 		  // Default: 0
 		  // Description: Method for linear optimization.
 		  // Determines which algorithm is used when CPXlpopt() (or "optimize"
 		  // in the Interactive Optimizer) is called. Currently the behavior of
 		  // the "Automatic" setting is that CPLEX simply invokes the dual
 		  // simplex method, but this capability may be expanded in the future
 		  // so that CPLEX chooses the method based on problem characteristics
 		#if CPX_VERSION < 900
 		  void statusSwitch(CPXENVptr cplexEnv(),int& stat){
 		    int lpmethod;
 		    CPXgetintparam (cplexEnv(),CPX_PARAM_PROBMETHOD,&lpmethod);
 		    if (lpmethod==2){
 		      if (stat==CPX_UNBOUNDED){
 		        stat=CPX_INFEASIBLE;
+		      }
 		      else{
 		        if (stat==CPX_INFEASIBLE)
 		          stat=CPX_UNBOUNDED;
+		      }
@@ -689,98 +715,97 @@
 		  CplexLp::ProblemType CplexLp::_getPrimalType() const {
 		    // Unboundedness not treated well: the following is from cplex 9.0 doc
 		    // About Unboundedness
 		    // The treatment of models that are unbounded involves a few
 		    // subtleties. Specifically, a declaration of unboundedness means that
 		    // ILOG CPLEX has determined that the model has an unbounded
 		    // ray. Given any feasible solution x with objective z, a multiple of
 		    // the unbounded ray can be added to x to give a feasible solution
 		    // with objective z-1 (or z+1 for maximization models). Thus, if a
 		    // feasible solution exists, then the optimal objective is
 		    // unbounded. Note that ILOG CPLEX has not necessarily concluded that
 		    // a feasible solution exists. Users can call the routine CPXsolninfo
 		    // to determine whether ILOG CPLEX has also concluded that the model
 		    // has a feasible solution.
 		    int stat = CPXgetstat(cplexEnv(), _prob);
 		#if CPX_VERSION >= 800
 		    switch (stat)
+		      {
 		      case CPX_STAT_OPTIMAL:
 		        return OPTIMAL;
 		      case CPX_STAT_UNBOUNDED:
 		        return UNBOUNDED;
 		      case CPX_STAT_INFEASIBLE:
 		        return INFEASIBLE;
 		      default:
 		        return UNDEFINED;
+		      }
 		#else
 		    statusSwitch(cplexEnv(),stat);
 		    //CPXgetstat(cplexEnv(), _prob);
 		    //printf("A primal status: %d, CPX_OPTIMAL=%d \n",stat,CPX_OPTIMAL);
 		    switch (stat) {
 		    case 0:
 		      return UNDEFINED; //Undefined
 		    case CPX_OPTIMAL://Optimal
 		      return OPTIMAL;
 		    case CPX_UNBOUNDED://Unbounded
 		      return INFEASIBLE;//In case of dual simplex
 		      //return UNBOUNDED;
 		    case CPX_INFEASIBLE://Infeasible
 		      //    case CPX_IT_LIM_INFEAS:
 		      //     case CPX_TIME_LIM_INFEAS:
 		      //     case CPX_NUM_BEST_INFEAS:
 		      //     case CPX_OPTIMAL_INFEAS:
 		      //     case CPX_ABORT_INFEAS:
 		      //     case CPX_ABORT_PRIM_INFEAS:
 		      //     case CPX_ABORT_PRIM_DUAL_INFEAS:
 		      return UNBOUNDED;//In case of dual simplex
 		      //return INFEASIBLE;
 		      //     case CPX_OBJ_LIM:
 		      //     case CPX_IT_LIM_FEAS:
 		      //     case CPX_TIME_LIM_FEAS:
 		      //     case CPX_NUM_BEST_FEAS:
 		      //     case CPX_ABORT_FEAS:
 		      //     case CPX_ABORT_PRIM_DUAL_FEAS:
 		      //       return FEASIBLE;
 		    default:
 		      return UNDEFINED; //Everything else comes here
 		      //FIXME error
+		    }
 		#endif
+		  }
-		  //9.0-as cplex verzio statusai
+		  // Cplex 9.0 status values
 		  // CPX_STAT_ABORT_DUAL_OBJ_LIM
 		  // CPX_STAT_ABORT_IT_LIM
 		  // CPX_STAT_ABORT_OBJ_LIM
 		  // CPX_STAT_ABORT_PRIM_OBJ_LIM
 		  // CPX_STAT_ABORT_TIME_LIM
 		  // CPX_STAT_ABORT_USER
 		  // CPX_STAT_FEASIBLE_RELAXED
 		  // CPX_STAT_INFEASIBLE
 		  // CPX_STAT_INForUNBD
 		  // CPX_STAT_NUM_BEST
 		  // CPX_STAT_OPTIMAL
 		  // CPX_STAT_OPTIMAL_FACE_UNBOUNDED
 		  // CPX_STAT_OPTIMAL_INFEAS
 		  // CPX_STAT_OPTIMAL_RELAXED
 		  // CPX_STAT_UNBOUNDED
 		  CplexLp::ProblemType CplexLp::_getDualType() const {
 		    int stat = CPXgetstat(cplexEnv(), _prob);
 		#if CPX_VERSION >= 800
 		    switch (stat) {
 		    case CPX_STAT_OPTIMAL:
 		      return OPTIMAL;
 		    case CPX_STAT_UNBOUNDED:
 		      return INFEASIBLE;
 		    default:
 		      return UNDEFINED;
+		    }
 		#else
 		    statusSwitch(cplexEnv(),stat);
 		    switch (stat) {
 		    case 0:
 		      return UNDEFINED; //Undefined
@@ -835,64 +860,65 @@
 		    switch (col_type){
 		    case INTEGER: {
 		      const char t = 'I';
 		      CPXchgctype (cplexEnv(), _prob, 1, &i, &t);
 		    } break;
 		    case REAL: {
 		      const char t = 'C';
 		      CPXchgctype (cplexEnv(), _prob, 1, &i, &t);
 		    } break;
 		    default:
 		      break;
+		    }
+		  }
 		  CplexMip::ColTypes CplexMip::_getColType(int i) const {
 		    char t;
 		    CPXgetctype (cplexEnv(), _prob, &t, i, i);
 		    switch (t) {
 		    case 'I':
 		      return INTEGER;
 		    case 'C':
 		      return REAL;
 		    default:
 		      LEMON_ASSERT(false, "Invalid column type");
 		      return ColTypes();
+		    }
+		  }
 		  CplexMip::SolveExitStatus CplexMip::_solve() {
 		    int status;
 		    _applyMessageLevel();
 		    status = CPXmipopt (cplexEnv(), _prob);
 		    if (status==0)
 		      return SOLVED;
 		    else
 		      return UNSOLVED;
+		  }
 		  CplexMip::ProblemType CplexMip::_getType() const {
 		    int stat = CPXgetstat(cplexEnv(), _prob);
 		    //Fortunately, MIP statuses did not change for cplex 8.0
 		    switch (stat) {
 		    case CPXMIP_OPTIMAL:
 		      // Optimal integer solution has been found.
 		    case CPXMIP_OPTIMAL_TOL:
 		      // Optimal soluton with the tolerance defined by epgap or epagap has
 		      // been found.
 		      return OPTIMAL;
 		      //This also exists in later issues
 		      //    case CPXMIP_UNBOUNDED:
 		      //return UNBOUNDED;
 		      case CPXMIP_INFEASIBLE:
 		        return INFEASIBLE;
 		    default:
 		      return UNDEFINED;
+		    }
 		    //Unboundedness not treated well: the following is from cplex 9.0 doc
 		    // About Unboundedness

lemon/cplex.h

Show inline comments

@@ -115,72 +115,87 @@
 		    virtual void _getColCoeffs(int i, InsertIterator b) const;
 		    virtual void _setCoeff(int row, int col, Value value);
 		    virtual Value _getCoeff(int row, int col) const;
 		    virtual void _setColLowerBound(int i, Value value);
 		    virtual Value _getColLowerBound(int i) const;
 		    virtual void _setColUpperBound(int i, Value value);
 		    virtual Value _getColUpperBound(int i) const;
 		  private:
 		    void _set_row_bounds(int i, Value lb, Value ub);
 		  protected:
 		    virtual void _setRowLowerBound(int i, Value value);
 		    virtual Value _getRowLowerBound(int i) const;
 		    virtual void _setRowUpperBound(int i, Value value);
 		    virtual Value _getRowUpperBound(int i) const;
 		    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
 		    virtual void _getObjCoeffs(InsertIterator b) const;
 		    virtual void _setObjCoeff(int i, Value obj_coef);
 		    virtual Value _getObjCoeff(int i) const;
 		    virtual void _setSense(Sense sense);
 		    virtual Sense _getSense() const;
 		    virtual void _clear();
 		    virtual void _messageLevel(MessageLevel level);
 		    void _applyMessageLevel();
 		    bool _message_enabled;
 		  public:
 		    /// Returns the used \c CplexEnv instance
 		    const CplexEnv& env() const { return _env; }
 		    /// \brief Returns the const cpxenv pointer
 		    ///
 		    /// \note The cpxenv might be destructed with the solver.
 		    const cpxenv* cplexEnv() const { return _env.cplexEnv(); }
 		    /// \brief Returns the const cpxenv pointer
 		    ///
 		    /// \note The cpxenv might be destructed with the solver.
 		    cpxenv* cplexEnv() { return _env.cplexEnv(); }
 		    /// Returns the cplex problem object
 		    cpxlp* cplexLp() { return _prob; }
 		    /// Returns the cplex problem object
 		    const cpxlp* cplexLp() const { return _prob; }
 		  };
 		  /// \brief Interface for the CPLEX LP solver
 		  ///
 		  /// This class implements an interface for the CPLEX LP solver.
 		  ///\ingroup lp_group
 		  class CplexLp : public LpSolver, public CplexBase {
 		  public:
 		    /// \e
 		    CplexLp();
 		    /// \e
 		    CplexLp(const CplexEnv&);
 		    /// \e
 		    CplexLp(const CplexLp&);
 		    /// \e
 		    virtual ~CplexLp();
 		    /// \e
 		    virtual CplexLp* cloneSolver() const;
 		    /// \e
 		    virtual CplexLp* newSolver() const;
 		  private:
 		    // these values cannot retrieved element by element
 		    mutable std::vector<int> _col_status;
 		    mutable std::vector<int> _row_status;
 		    mutable std::vector<Value> _primal_ray;
 		    mutable std::vector<Value> _dual_ray;

lemon/glpk.cc

Show inline comments

@@ -2,72 +2,74 @@
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * 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.
+		 *
 		 */
 		///\file
 		///\brief Implementation of the LEMON GLPK LP and MIP solver interface.
 		#include <lemon/glpk.h>
 		#include <glpk.h>
 		#include <lemon/assert.h>
 		namespace lemon {
 		  // GlpkBase members
 		  GlpkBase::GlpkBase() : LpBase() {
 		    lp = glp_create_prob();
 		    glp_create_index(lp);
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  GlpkBase::GlpkBase(const GlpkBase &other) : LpBase() {
 		    lp = glp_create_prob();
 		    glp_copy_prob(lp, other.lp, GLP_ON);
 		    glp_create_index(lp);
 		    rows = other.rows;
 		    cols = other.cols;
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  GlpkBase::~GlpkBase() {
 		    glp_delete_prob(lp);
+		  }
 		  int GlpkBase::_addCol() {
 		    int i = glp_add_cols(lp, 1);
 		    glp_set_col_bnds(lp, i, GLP_FR, 0.0, 0.0);
 		    return i;
+		  }
 		  int GlpkBase::_addRow() {
 		    int i = glp_add_rows(lp, 1);
 		    glp_set_row_bnds(lp, i, GLP_FR, 0.0, 0.0);
 		    return i;
+		  }
 		  void GlpkBase::_eraseCol(int i) {
 		    int ca[2];
 		    ca[1] = i;
 		    glp_del_cols(lp, 1, ca);
+		  }
 		  void GlpkBase::_eraseRow(int i) {
 		    int ra[2];
 		    ra[1] = i;
 		    glp_del_rows(lp, 1, ra);
+		  }
 		  void GlpkBase::_eraseColId(int i) {
 		    cols.eraseIndex(i);
@@ -497,156 +499,148 @@
 		    switch (sense) {
 		    case MIN:
 		      glp_set_obj_dir(lp, GLP_MIN);
 		      break;
 		    case MAX:
 		      glp_set_obj_dir(lp, GLP_MAX);
 		      break;
+		    }
+		  }
 		  GlpkBase::Sense GlpkBase::_getSense() const {
 		    switch(glp_get_obj_dir(lp)) {
 		    case GLP_MIN:
 		      return MIN;
 		    case GLP_MAX:
 		      return MAX;
 		    default:
 		      LEMON_ASSERT(false, "Wrong sense");
 		      return GlpkBase::Sense();
+		    }
+		  }
 		  void GlpkBase::_clear() {
 		    glp_erase_prob(lp);
 		    rows.clear();
 		    cols.clear();
+		  }
 		  void GlpkBase::freeEnv() {
 		    glp_free_env();
+		  }
 		  void GlpkBase::_messageLevel(MessageLevel level) {
 		    switch (level) {
 		    case MESSAGE_NOTHING:
 		      _message_level = GLP_MSG_OFF;
 		      break;
 		    case MESSAGE_ERROR:
 		      _message_level = GLP_MSG_ERR;
 		      break;
 		    case MESSAGE_WARNING:
 		      _message_level = GLP_MSG_ERR;
 		      break;
 		    case MESSAGE_NORMAL:
 		      _message_level = GLP_MSG_ON;
 		      break;
 		    case MESSAGE_VERBOSE:
 		      _message_level = GLP_MSG_ALL;
 		      break;
+		    }
+		  }
 		  GlpkBase::FreeEnvHelper GlpkBase::freeEnvHelper;
 		  // GlpkLp members
 		  GlpkLp::GlpkLp()
 		    : LpBase(), LpSolver(), GlpkBase() {
 		    messageLevel(MESSAGE_NO_OUTPUT);
 		    presolver(false);
+		  }
 		  GlpkLp::GlpkLp(const GlpkLp& other)
 		    : LpBase(other), LpSolver(other), GlpkBase(other) {
 		    messageLevel(MESSAGE_NO_OUTPUT);
 		    presolver(false);
+		  }
 		  GlpkLp* GlpkLp::newSolver() const { return new GlpkLp; }
 		  GlpkLp* GlpkLp::cloneSolver() const { return new GlpkLp(*this); }
 		  const char* GlpkLp::_solverName() const { return "GlpkLp"; }
 		  void GlpkLp::_clear_temporals() {
 		    _primal_ray.clear();
 		    _dual_ray.clear();
+		  }
 		  GlpkLp::SolveExitStatus GlpkLp::_solve() {
 		    return solvePrimal();
+		  }
 		  GlpkLp::SolveExitStatus GlpkLp::solvePrimal() {
 		    _clear_temporals();
 		    glp_smcp smcp;
 		    glp_init_smcp(&smcp);
 		    switch (_message_level) {
 		    case MESSAGE_NO_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_OFF;
 		      break;
 		    case MESSAGE_ERROR_MESSAGE:
 		      smcp.msg_lev = GLP_MSG_ERR;
 		      break;
 		    case MESSAGE_NORMAL_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_ON;
 		      break;
 		    case MESSAGE_FULL_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_ALL;
 		      break;
+		    }
 		    smcp.msg_lev = _message_level;
 		    smcp.presolve = _presolve;
 		    // If the basis is not valid we get an error return value.
 		    // In this case we can try to create a new basis.
 		    switch (glp_simplex(lp, &smcp)) {
 		    case 0:
 		      break;
 		    case GLP_EBADB:
 		    case GLP_ESING:
 		    case GLP_ECOND:
 		      glp_term_out(false);
 		      glp_adv_basis(lp, 0);
 		      glp_term_out(true);
 		      if (glp_simplex(lp, &smcp) != 0) return UNSOLVED;
 		      break;
 		    default:
 		      return UNSOLVED;
+		    }
 		    return SOLVED;
+		  }
 		  GlpkLp::SolveExitStatus GlpkLp::solveDual() {
 		    _clear_temporals();
 		    glp_smcp smcp;
 		    glp_init_smcp(&smcp);
 		    switch (_message_level) {
 		    case MESSAGE_NO_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_OFF;
 		      break;
 		    case MESSAGE_ERROR_MESSAGE:
 		      smcp.msg_lev = GLP_MSG_ERR;
 		      break;
 		    case MESSAGE_NORMAL_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_ON;
 		      break;
 		    case MESSAGE_FULL_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_ALL;
 		      break;
+		    }
 		    smcp.msg_lev = _message_level;
 		    smcp.meth = GLP_DUAL;
 		    smcp.presolve = _presolve;
 		    // If the basis is not valid we get an error return value.
 		    // In this case we can try to create a new basis.
 		    switch (glp_simplex(lp, &smcp)) {
 		    case 0:
 		      break;
 		    case GLP_EBADB:
 		    case GLP_ESING:
 		    case GLP_ECOND:
 		      glp_term_out(false);
 		      glp_adv_basis(lp, 0);
 		      glp_term_out(true);
 		      if (glp_simplex(lp, &smcp) != 0) return UNSOLVED;
 		      break;
 		    default:
 		      return UNSOLVED;
+		    }
 		    return SOLVED;
+		  }
 		  GlpkLp::Value GlpkLp::_getPrimal(int i) const {
 		    return glp_get_col_prim(lp, i);
+		  }
 		  GlpkLp::Value GlpkLp::_getDual(int i) const {
 		    return glp_get_row_dual(lp, i);
+		  }
 		  GlpkLp::Value GlpkLp::_getPrimalValue() const {
 		    return glp_get_obj_val(lp);
@@ -829,181 +823,145 @@
 		      return INFEASIBLE;
 		    default:
 		      LEMON_ASSERT(false, "Wrong primal type");
 		      return  GlpkLp::ProblemType();
+		    }
+		  }
 		  GlpkLp::ProblemType GlpkLp::_getDualType() const {
 		    if (glp_get_status(lp) == GLP_OPT)
 		      return OPTIMAL;
 		    switch (glp_get_dual_stat(lp)) {
 		    case GLP_UNDEF:
 		      return UNDEFINED;
 		    case GLP_FEAS:
 		    case GLP_INFEAS:
 		      if (glp_get_prim_stat(lp) == GLP_NOFEAS) {
 		        return UNBOUNDED;
 		      } else {
 		        return UNDEFINED;
+		      }
 		    case GLP_NOFEAS:
 		      return INFEASIBLE;
 		    default:
 		      LEMON_ASSERT(false, "Wrong primal type");
 		      return  GlpkLp::ProblemType();
+		    }
+		  }
 		  void GlpkLp::presolver(bool presolve) {
 		    _presolve = presolve;
+		  }
 		  void GlpkLp::messageLevel(MessageLevel m) {
 		    _message_level = m;
+		  }
 		  // GlpkMip members
 		  GlpkMip::GlpkMip()
 		    : LpBase(), MipSolver(), GlpkBase() {
 		    messageLevel(MESSAGE_NO_OUTPUT);
+		  }
 		  GlpkMip::GlpkMip(const GlpkMip& other)
 		    : LpBase(), MipSolver(), GlpkBase(other) {
 		    messageLevel(MESSAGE_NO_OUTPUT);
+		  }
 		  void GlpkMip::_setColType(int i, GlpkMip::ColTypes col_type) {
 		    switch (col_type) {
 		    case INTEGER:
 		      glp_set_col_kind(lp, i, GLP_IV);
 		      break;
 		    case REAL:
 		      glp_set_col_kind(lp, i, GLP_CV);
 		      break;
+		    }
+		  }
 		  GlpkMip::ColTypes GlpkMip::_getColType(int i) const {
 		    switch (glp_get_col_kind(lp, i)) {
 		    case GLP_IV:
 		    case GLP_BV:
 		      return INTEGER;
 		    default:
 		      return REAL;
+		    }
+		  }
 		  GlpkMip::SolveExitStatus GlpkMip::_solve() {
 		    glp_smcp smcp;
 		    glp_init_smcp(&smcp);
 		    switch (_message_level) {
 		    case MESSAGE_NO_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_OFF;
 		      break;
 		    case MESSAGE_ERROR_MESSAGE:
 		      smcp.msg_lev = GLP_MSG_ERR;
 		      break;
 		    case MESSAGE_NORMAL_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_ON;
 		      break;
 		    case MESSAGE_FULL_OUTPUT:
 		      smcp.msg_lev = GLP_MSG_ALL;
 		      break;
+		    }
 		    smcp.msg_lev = _message_level;
 		    smcp.meth = GLP_DUAL;
 		    // If the basis is not valid we get an error return value.
 		    // In this case we can try to create a new basis.
 		    switch (glp_simplex(lp, &smcp)) {
 		    case 0:
 		      break;
 		    case GLP_EBADB:
 		    case GLP_ESING:
 		    case GLP_ECOND:
 		      glp_term_out(false);
 		      glp_adv_basis(lp, 0);
 		      glp_term_out(true);
 		      if (glp_simplex(lp, &smcp) != 0) return UNSOLVED;
 		      break;
 		    default:
 		      return UNSOLVED;
+		    }
 		    if (glp_get_status(lp) != GLP_OPT) return SOLVED;
 		    glp_iocp iocp;
 		    glp_init_iocp(&iocp);
 		    switch (_message_level) {
 		    case MESSAGE_NO_OUTPUT:
 		      iocp.msg_lev = GLP_MSG_OFF;
 		      break;
 		    case MESSAGE_ERROR_MESSAGE:
 		      iocp.msg_lev = GLP_MSG_ERR;
 		      break;
 		    case MESSAGE_NORMAL_OUTPUT:
 		      iocp.msg_lev = GLP_MSG_ON;
 		      break;
 		    case MESSAGE_FULL_OUTPUT:
 		      iocp.msg_lev = GLP_MSG_ALL;
 		      break;
+		    }
 		    iocp.msg_lev = _message_level;
 		    if (glp_intopt(lp, &iocp) != 0) return UNSOLVED;
 		    return SOLVED;
+		  }
 		  GlpkMip::ProblemType GlpkMip::_getType() const {
 		    switch (glp_get_status(lp)) {
 		    case GLP_OPT:
 		      switch (glp_mip_status(lp)) {
 		      case GLP_UNDEF:
 		        return UNDEFINED;
 		      case GLP_NOFEAS:
 		        return INFEASIBLE;
 		      case GLP_FEAS:
 		        return FEASIBLE;
 		      case GLP_OPT:
 		        return OPTIMAL;
 		      default:
 		        LEMON_ASSERT(false, "Wrong problem type.");
 		        return GlpkMip::ProblemType();
+		      }
 		    case GLP_NOFEAS:
 		      return INFEASIBLE;
 		    case GLP_INFEAS:
 		    case GLP_FEAS:
 		      if (glp_get_dual_stat(lp) == GLP_NOFEAS) {
 		        return UNBOUNDED;
 		      } else {
 		        return UNDEFINED;
+		      }
 		    default:
 		      LEMON_ASSERT(false, "Wrong problem type.");
 		      return GlpkMip::ProblemType();
+		    }
+		  }
 		  GlpkMip::Value GlpkMip::_getSol(int i) const {
 		    return glp_mip_col_val(lp, i);
+		  }
 		  GlpkMip::Value GlpkMip::_getSolValue() const {
 		    return glp_mip_obj_val(lp);
+		  }
 		  GlpkMip* GlpkMip::newSolver() const { return new GlpkMip; }
 		  GlpkMip* GlpkMip::cloneSolver() const {return new GlpkMip(*this); }
 		  const char* GlpkMip::_solverName() const { return "GlpkMip"; }
 		  void GlpkMip::messageLevel(MessageLevel m) {
 		    _message_level = m;
+		  }
 		} //END OF NAMESPACE LEMON

lemon/glpk.h

Show inline comments

@@ -71,75 +71,81 @@
 		    virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
 		    virtual void _getRowCoeffs(int i, InsertIterator b) const;
 		    virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
 		    virtual void _getColCoeffs(int i, InsertIterator b) const;
 		    virtual void _setCoeff(int row, int col, Value value);
 		    virtual Value _getCoeff(int row, int col) const;
 		    virtual void _setColLowerBound(int i, Value value);
 		    virtual Value _getColLowerBound(int i) const;
 		    virtual void _setColUpperBound(int i, Value value);
 		    virtual Value _getColUpperBound(int i) const;
 		    virtual void _setRowLowerBound(int i, Value value);
 		    virtual Value _getRowLowerBound(int i) const;
 		    virtual void _setRowUpperBound(int i, Value value);
 		    virtual Value _getRowUpperBound(int i) const;
 		    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
 		    virtual void _getObjCoeffs(InsertIterator b) const;
 		    virtual void _setObjCoeff(int i, Value obj_coef);
 		    virtual Value _getObjCoeff(int i) const;
 		    virtual void _setSense(Sense);
 		    virtual Sense _getSense() const;
 		    virtual void _clear();
 		    virtual void _messageLevel(MessageLevel level);
 		  private:
 		    static void freeEnv();
 		    struct FreeEnvHelper {
 		      ~FreeEnvHelper() {
 		        freeEnv();
+		      }
 		    };
 		    static FreeEnvHelper freeEnvHelper;
 		  protected:
 		    int _message_level;
 		  public:
 		    ///Pointer to the underlying GLPK data structure.
 		    LPX *lpx() {return lp;}
 		    ///Const pointer to the underlying GLPK data structure.
 		    const LPX *lpx() const {return lp;}
 		    ///Returns the constraint identifier understood by GLPK.
 		    int lpxRow(Row r) const { return rows(id(r)); }
 		    ///Returns the variable identifier understood by GLPK.
 		    int lpxCol(Col c) const { return cols(id(c)); }
 		  };
 		  /// \brief Interface for the GLPK LP solver
 		  ///
 		  /// This class implements an interface for the GLPK LP solver.
 		  ///\ingroup lp_group
 		  class GlpkLp : public LpSolver, public GlpkBase {
 		  public:
 		    ///\e
 		    GlpkLp();
 		    ///\e
 		    GlpkLp(const GlpkLp&);
 		    ///\e
 		    virtual GlpkLp* cloneSolver() const;
 		    ///\e
 		    virtual GlpkLp* newSolver() const;
@@ -162,116 +168,68 @@
 		    virtual Value _getPrimalValue() const;
 		    virtual VarStatus _getColStatus(int i) const;
 		    virtual VarStatus _getRowStatus(int i) const;
 		    virtual Value _getPrimalRay(int i) const;
 		    virtual Value _getDualRay(int i) const;
 		    virtual ProblemType _getPrimalType() const;
 		    virtual ProblemType _getDualType() const;
 		  public:
 		    ///Solve with primal simplex
 		    SolveExitStatus solvePrimal();
 		    ///Solve with dual simplex
 		    SolveExitStatus solveDual();
 		  private:
 		    bool _presolve;
 		  public:
 		    ///Turns on or off the presolver
 		    ///Turns on (\c b is \c true) or off (\c b is \c false) the presolver
 		    ///
 		    ///The presolver is off by default.
 		    void presolver(bool presolve);
 		    ///Enum for \c messageLevel() parameter
 		    enum MessageLevel {
 		      /// no output (default value)
 		      MESSAGE_NO_OUTPUT = 0,
 		      /// error messages only
 		      MESSAGE_ERROR_MESSAGE = 1,
 		      /// normal output
 		      MESSAGE_NORMAL_OUTPUT = 2,
 		      /// full output (includes informational messages)
 		      MESSAGE_FULL_OUTPUT = 3
 		    };
 		  private:
 		    MessageLevel _message_level;
 		  public:
 		    ///Set the verbosity of the messages
 		    ///Set the verbosity of the messages
 		    ///
 		    ///\param m is the level of the messages output by the solver routines.
 		    void messageLevel(MessageLevel m);
 		  };
 		  /// \brief Interface for the GLPK MIP solver
 		  ///
 		  /// This class implements an interface for the GLPK MIP solver.
 		  ///\ingroup lp_group
 		  class GlpkMip : public MipSolver, public GlpkBase {
 		  public:
 		    ///\e
 		    GlpkMip();
 		    ///\e
 		    GlpkMip(const GlpkMip&);
 		    virtual GlpkMip* cloneSolver() const;
 		    virtual GlpkMip* newSolver() const;
 		  protected:
 		    virtual const char* _solverName() const;
 		    virtual ColTypes _getColType(int col) const;
 		    virtual void _setColType(int col, ColTypes col_type);
 		    virtual SolveExitStatus _solve();
 		    virtual ProblemType _getType() const;
 		    virtual Value _getSol(int i) const;
 		    virtual Value _getSolValue() const;
 		    ///Enum for \c messageLevel() parameter
 		    enum MessageLevel {
 		      /// no output (default value)
 		      MESSAGE_NO_OUTPUT = 0,
 		      /// error messages only
 		      MESSAGE_ERROR_MESSAGE = 1,
 		      /// normal output
 		      MESSAGE_NORMAL_OUTPUT = 2,
 		      /// full output (includes informational messages)
 		      MESSAGE_FULL_OUTPUT = 3
 		    };
 		  private:
 		    MessageLevel _message_level;
 		  public:
 		    ///Set the verbosity of the messages
 		    ///Set the verbosity of the messages
 		    ///
 		    ///\param m is the level of the messages output by the solver routines.
 		    void messageLevel(MessageLevel m);
 		  };
 		} //END OF NAMESPACE LEMON
 		#endif //LEMON_GLPK_H

lemon/lp_base.h

Show inline comments

@@ -40,64 +40,79 @@
 		  ///Usually this class is not used directly, please use one of the concrete
 		  ///implementations of the solver interface.
 		  ///\ingroup lp_group
 		  class LpBase {
 		  protected:
 		    _solver_bits::VarIndex rows;
 		    _solver_bits::VarIndex cols;
 		  public:
 		    ///Possible outcomes of an LP solving procedure
 		    enum SolveExitStatus {
 		      ///This means that the problem has been successfully solved: either
 		      ///an optimal solution has been found or infeasibility/unboundedness
 		      ///has been proved.
 		      SOLVED = 0,
 		      ///Any other case (including the case when some user specified
 		      ///limit has been exceeded)
 		      UNSOLVED = 1
 		    };
 		    ///Direction of the optimization
 		    enum Sense {
 		      /// Minimization
 		      MIN,
 		      /// Maximization
 		      MAX
 		    };
 		    ///Enum for \c messageLevel() parameter
 		    enum MessageLevel {
 		      /// no output (default value)
 		      MESSAGE_NOTHING,
 		      /// error messages only
 		      MESSAGE_ERROR,
 		      /// warnings
 		      MESSAGE_WARNING,
 		      /// normal output
 		      MESSAGE_NORMAL,
 		      /// verbose output
 		      MESSAGE_VERBOSE
 		    };
 		    ///The floating point type used by the solver
 		    typedef double Value;
 		    ///The infinity constant
 		    static const Value INF;
 		    ///The not a number constant
 		    static const Value NaN;
 		    friend class Col;
 		    friend class ColIt;
 		    friend class Row;
 		    friend class RowIt;
 		    ///Refer to a column of the LP.
 		    ///This type is used to refer to a column of the LP.
 		    ///
 		    ///Its value remains valid and correct even after the addition or erase of
 		    ///other columns.
 		    ///
 		    ///\note This class is similar to other Item types in LEMON, like
 		    ///Node and Arc types in digraph.
 		    class Col {
 		      friend class LpBase;
 		    protected:
 		      int _id;
 		      explicit Col(int id) : _id(id) {}
 		    public:
 		      typedef Value ExprValue;
 		      typedef True LpCol;
 		      /// Default constructor
 		      /// \warning The default constructor sets the Col to an
@@ -944,64 +959,66 @@
 		    virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e) = 0;
 		    virtual void _getColCoeffs(int i, InsertIterator b) const = 0;
 		    virtual void _setCoeff(int row, int col, Value value) = 0;
 		    virtual Value _getCoeff(int row, int col) const = 0;
 		    virtual void _setColLowerBound(int i, Value value) = 0;
 		    virtual Value _getColLowerBound(int i) const = 0;
 		    virtual void _setColUpperBound(int i, Value value) = 0;
 		    virtual Value _getColUpperBound(int i) const = 0;
 		    virtual void _setRowLowerBound(int i, Value value) = 0;
 		    virtual Value _getRowLowerBound(int i) const = 0;
 		    virtual void _setRowUpperBound(int i, Value value) = 0;
 		    virtual Value _getRowUpperBound(int i) const = 0;
 		    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e) = 0;
 		    virtual void _getObjCoeffs(InsertIterator b) const = 0;
 		    virtual void _setObjCoeff(int i, Value obj_coef) = 0;
 		    virtual Value _getObjCoeff(int i) const = 0;
 		    virtual void _setSense(Sense) = 0;
 		    virtual Sense _getSense() const = 0;
 		    virtual void _clear() = 0;
 		    virtual const char* _solverName() const = 0;
 		    virtual void _messageLevel(MessageLevel level) = 0;
 		    //Own protected stuff
 		    //Constant component of the objective function
 		    Value obj_const_comp;
 		    LpBase() : rows(), cols(), obj_const_comp(0) {}
 		  public:
 		    /// Virtual destructor
 		    virtual ~LpBase() {}
 		    ///Gives back the name of the solver.
 		    const char* solverName() const {return _solverName();}
 		    ///\name Build up and modify the LP
 		    ///@{
 		    ///Add a new empty column (i.e a new variable) to the LP
 		    Col addCol() { Col c; c._id = _addColId(_addCol()); return c;}
 		    ///\brief Adds several new columns (i.e variables) at once
 		    ///
 		    ///This magic function takes a container as its argument and fills
 		    ///its elements with new columns (i.e. variables)
 		    ///\param t can be
 		    ///- a standard STL compatible iterable container with
 		    ///\ref Col as its \c values_type like
 		    ///\code
 		    ///std::vector<LpBase::Col>
 		    ///std::list<LpBase::Col>
@@ -1498,64 +1515,67 @@
 		      _setObjCoeffs(ExprIterator(e.comps.begin(), cols),
 		                    ExprIterator(e.comps.end(), cols));
 		      obj_const_comp = *e;
+		    }
 		    ///Get the objective function
 		    ///\return the objective function as a linear expression of type
 		    ///Expr.
 		    Expr obj() const {
 		      Expr e;
 		      _getObjCoeffs(InsertIterator(e.comps, cols));
 		      *e = obj_const_comp;
 		      return e;
+		    }
 		    ///Set the direction of optimization
 		    void sense(Sense sense) { _setSense(sense); }
 		    ///Query the direction of the optimization
 		    Sense sense() const {return _getSense(); }
 		    ///Set the sense to maximization
 		    void max() { _setSense(MAX); }
 		    ///Set the sense to maximization
 		    void min() { _setSense(MIN); }
 		    ///Clears the problem
 		    void clear() { _clear(); }
 		    /// Sets the message level of the solver
 		    void messageLevel(MessageLevel level) { _messageLevel(level); }
 		    ///@}
 		  };
 		  /// Addition
 		  ///\relates LpBase::Expr
 		  ///
 		  inline LpBase::Expr operator+(const LpBase::Expr &a, const LpBase::Expr &b) {
 		    LpBase::Expr tmp(a);
 		    tmp+=b;
 		    return tmp;
+		  }
 		  ///Substraction
 		  ///\relates LpBase::Expr
 		  ///
 		  inline LpBase::Expr operator-(const LpBase::Expr &a, const LpBase::Expr &b) {
 		    LpBase::Expr tmp(a);
 		    tmp-=b;
 		    return tmp;
+		  }
 		  ///Multiply with constant
 		  ///\relates LpBase::Expr
 		  ///
 		  inline LpBase::Expr operator*(const LpBase::Expr &a, const LpBase::Value &b) {
 		    LpBase::Expr tmp(a);
 		    tmp*=b;
 		    return tmp;
+		  }

lemon/lp_skeleton.cc

Show inline comments

@@ -55,64 +55,66 @@
 		  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; }

lemon/lp_skeleton.h

Show inline comments

@@ -111,64 +111,66 @@
 		    /// Value or -\ref INF.
 		    virtual Value _getRowLowerBound(int i) const;
 		    /// The upper bound of a constraint (row) have to be given by an
 		    /// extended number of type Value, i.e. a finite number of type
 		    /// Value or \ref INF.
 		    virtual void _setRowUpperBound(int i, Value value);
 		    /// \e
 		    /// The upper bound of a constraint (row) is an
 		    /// extended number of type Value, i.e. a finite number of type
 		    /// Value or \ref INF.
 		    virtual Value _getRowUpperBound(int i) const;
 		    /// \e
 		    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
 		    /// \e
 		    virtual void _getObjCoeffs(InsertIterator b) const;
 		    /// \e
 		    virtual void _setObjCoeff(int i, Value obj_coef);
 		    /// \e
 		    virtual Value _getObjCoeff(int i) const;
 		    ///\e
 		    virtual void _setSense(Sense);
 		    ///\e
 		    virtual Sense _getSense() const;
 		    ///\e
 		    virtual void _clear();
 		    ///\e
 		    virtual void _messageLevel(MessageLevel);
 		  };
 		  /// \brief Skeleton class for an LP solver interface
 		  ///
 		  ///This class does nothing, but it can serve as a skeleton when
 		  ///implementing an interface to new solvers.
 		  ///\ingroup lp_group
 		  class LpSkeleton : public LpSolver, public SkeletonSolverBase {
 		  public:
 		    ///\e
 		    LpSkeleton() : LpSolver(), SkeletonSolverBase() {}
 		    ///\e
 		    virtual LpSkeleton* newSolver() const;
 		    ///\e
 		    virtual LpSkeleton* cloneSolver() const;
 		  protected:
 		    ///\e
 		    virtual SolveExitStatus _solve();
 		    ///\e
 		    virtual Value _getPrimal(int i) const;
 		    ///\e
 		    virtual Value _getDual(int i) const;
 		    ///\e
 		    virtual Value _getPrimalValue() const;
 		    ///\e
 		    virtual Value _getPrimalRay(int i) const;
 		    ///\e

lemon/soplex.cc

Show inline comments

 		/* -*- 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 <iostream>
 		#include <lemon/soplex.h>
 		#include <soplex.h>
 		#include <spxout.h>
 		///\file
 		///\brief Implementation of the LEMON-SOPLEX lp solver interface.
 		namespace lemon {
 		  SoplexLp::SoplexLp() {
 		    soplex = new soplex::SoPlex;
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  SoplexLp::~SoplexLp() {
 		    delete soplex;
+		  }
 		  SoplexLp::SoplexLp(const SoplexLp& lp) {
 		    rows = lp.rows;
 		    cols = lp.cols;
 		    soplex = new soplex::SoPlex;
 		    (*static_cast<soplex::SPxLP*>(soplex)) = *(lp.soplex);
 		    _col_names = lp._col_names;
 		    _col_names_ref = lp._col_names_ref;
 		    _row_names = lp._row_names;
 		    _row_names_ref = lp._row_names_ref;
 		    messageLevel(MESSAGE_NOTHING);
+		  }
 		  void SoplexLp::_clear_temporals() {
 		    _primal_values.clear();
 		    _dual_values.clear();
+		  }
 		  SoplexLp* SoplexLp::newSolver() const {
 		    SoplexLp* newlp = new SoplexLp();
 		    return newlp;
+		  }
 		  SoplexLp* SoplexLp::cloneSolver() const {
 		    SoplexLp* newlp = new SoplexLp(*this);
 		    return newlp;
+		  }
 		  const char* SoplexLp::_solverName() const { return "SoplexLp"; }
 		  int SoplexLp::_addCol() {
 		    soplex::LPCol c;
 		    c.setLower(-soplex::infinity);
 		    c.setUpper(soplex::infinity);
 		    soplex->addCol(c);
 		    _col_names.push_back(std::string());
 		    return soplex->nCols() - 1;
+		  }
 		  int SoplexLp::_addRow() {
 		    soplex::LPRow r;
@@ -242,64 +245,66 @@
+		  }
 		  void SoplexLp::_setObjCoeffs(ExprIterator b, ExprIterator e) {
 		    for (int j = 0; j < soplex->nCols(); ++j) {
 		      soplex->changeObj(j, 0.0);
+		    }
 		    for (ExprIterator it = b; it != e; ++it) {
 		      soplex->changeObj(it->first, it->second);
+		    }
+		  }
 		  void SoplexLp::_getObjCoeffs(InsertIterator b) const {
 		    for (int j = 0; j < soplex->nCols(); ++j) {
 		      Value coef = soplex->obj(j);
 		      if (coef != 0.0) {
 		        *b = std::make_pair(j, coef);
 		        ++b;
+		      }
+		    }
+		  }
 		  void SoplexLp::_setObjCoeff(int i, Value obj_coef) {
 		    soplex->changeObj(i, obj_coef);
+		  }
 		  SoplexLp::Value SoplexLp::_getObjCoeff(int i) const {
 		    return soplex->obj(i);
+		  }
 		  SoplexLp::SolveExitStatus SoplexLp::_solve() {
 		    _clear_temporals();
 		    _applyMessageLevel();
 		    soplex::SPxSolver::Status status = soplex->solve();
 		    switch (status) {
 		    case soplex::SPxSolver::OPTIMAL:
 		    case soplex::SPxSolver::INFEASIBLE:
 		    case soplex::SPxSolver::UNBOUNDED:
 		      return SOLVED;
 		    default:
 		      return UNSOLVED;
+		    }
+		  }
 		  SoplexLp::Value SoplexLp::_getPrimal(int i) const {
 		    if (_primal_values.empty()) {
 		      _primal_values.resize(soplex->nCols());
 		      soplex::Vector pv(_primal_values.size(), &_primal_values.front());
 		      soplex->getPrimal(pv);
+		    }
 		    return _primal_values[i];
+		  }
 		  SoplexLp::Value SoplexLp::_getDual(int i) const {
 		    if (_dual_values.empty()) {
 		      _dual_values.resize(soplex->nRows());
 		      soplex::Vector dv(_dual_values.size(), &_dual_values.front());
 		      soplex->getDual(dv);
+		    }
 		    return _dual_values[i];
+		  }
 		  SoplexLp::Value SoplexLp::_getPrimalValue() const {
@@ -390,34 +395,58 @@
 		    switch (sense) {
 		    case MIN:
 		      soplex->changeSense(soplex::SPxSolver::MINIMIZE);
 		      break;
 		    case MAX:
 		      soplex->changeSense(soplex::SPxSolver::MAXIMIZE);
+		    }
+		  }
 		  SoplexLp::Sense SoplexLp::_getSense() const {
 		    switch (soplex->spxSense()) {
 		    case soplex::SPxSolver::MAXIMIZE:
 		      return MAX;
 		    case soplex::SPxSolver::MINIMIZE:
 		      return MIN;
 		    default:
 		      LEMON_ASSERT(false, "Wrong sense.");
 		      return SoplexLp::Sense();
+		    }
+		  }
 		  void SoplexLp::_clear() {
 		    soplex->clear();
 		    _col_names.clear();
 		    _col_names_ref.clear();
 		    _row_names.clear();
 		    _row_names_ref.clear();
 		    cols.clear();
 		    rows.clear();
 		    _clear_temporals();
+		  }
 		  void SoplexLp::_messageLevel(MessageLevel level) {
 		    switch (level) {
 		    case MESSAGE_NOTHING:
 		      _message_level = -1;
 		      break;
 		    case MESSAGE_ERROR:
 		      _message_level = soplex::SPxOut::ERROR;
 		      break;
 		    case MESSAGE_WARNING:
 		      _message_level = soplex::SPxOut::WARNING;
 		      break;
 		    case MESSAGE_NORMAL:
 		      _message_level = soplex::SPxOut::INFO2;
 		      break;
 		    case MESSAGE_VERBOSE:
 		      _message_level = soplex::SPxOut::DEBUG;
 		      break;
+		    }
+		  }
 		  void SoplexLp::_applyMessageLevel() {
 		    soplex::Param::setVerbose(_message_level);
+		  }
 		} //namespace lemon

lemon/soplex.h

Show inline comments

@@ -115,38 +115,43 @@
 		    virtual void _setRowLowerBound(int i, Value value);
 		    virtual Value _getRowLowerBound(int i) const;
 		    virtual void _setRowUpperBound(int i, Value value);
 		    virtual Value _getRowUpperBound(int i) const;
 		    virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
 		    virtual void _getObjCoeffs(InsertIterator b) const;
 		    virtual void _setObjCoeff(int i, Value obj_coef);
 		    virtual Value _getObjCoeff(int i) const;
 		    virtual void _setSense(Sense sense);
 		    virtual Sense _getSense() const;
 		    virtual SolveExitStatus _solve();
 		    virtual Value _getPrimal(int i) const;
 		    virtual Value _getDual(int i) const;
 		    virtual Value _getPrimalValue() const;
 		    virtual Value _getPrimalRay(int i) const;
 		    virtual Value _getDualRay(int i) const;
 		    virtual VarStatus _getColStatus(int i) const;
 		    virtual VarStatus _getRowStatus(int i) const;
 		    virtual ProblemType _getPrimalType() const;
 		    virtual ProblemType _getDualType() const;
 		    virtual void _clear();
 		    void _messageLevel(MessageLevel m);
 		    void _applyMessageLevel();
 		    int _message_level;
 		  };
 		} //END OF NAMESPACE LEMON
 		#endif //LEMON_SOPLEX_H

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