BonSolverHelp.hpp

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// (C) Copyright International Business Machines (IBM) 2006
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// Authors :
// P. Bonami, International Business Machines
//
// Date :  12/07/2006
 
 
// Code separated from BonOaDecBase to try to clarify OAs
// A number of utility to manipulate models used in OA and FP
#ifndef BonSolverHelp_H
#define BonSolverHelp_H
 
class OsiSolverInterface;
class OsiBranchingInformation;
class OsiObject;
class OsiCuts;
 
namespace Bonmin {
   bool integerFeasible(OsiSolverInterface & si, const OsiBranchingInformation & info,
                        double integer_tolerance,
                        OsiObject ** objects = 0, int nObjects = -1);

   void fixIntegers(OsiSolverInterface & si, const OsiBranchingInformation & info,
                    double integer_tolerance,
                    OsiObject ** objects = 0, int nObjects = -1);
   void relaxIntegers(OsiSolverInterface & si, const OsiBranchingInformation & info,
                    double integer_tolerance,
                    OsiObject ** objects = 0, int nObjects = -1);
   bool isDifferentOnIntegers(OsiSolverInterface &si,
                              OsiObject ** objects, int nObjects,
                              double integer_tolerance,
                              const double * colsol, const double * other);

   void installCuts(OsiSolverInterface &si,
                    const OsiCuts& cs, int numberCuts);
 
}
#endif