SecantMod.h

// 
//     Minotaur -- It's only 1/2 bull
// 
//     (C)opyright 2009 - 2025 The Minotaur Team.
// 
 
#ifndef MINOTAURLINCONSTRMOD_H
#define MINOTAURLINCONSTRMOD_H
 
#include "LinearFunction.h"
#include "LinConMod.h"
#include "VarBoundMod.h"
 
namespace Minotaur {
 
  class SecantMod;
  typedef SecantMod* SecantModPtr;
  typedef const SecantMod* ConstSecantModPtr;  
 
  //
  class SecantMod : public Modification {
  public:
    SecantMod(ConstraintPtr con, LinearFunctionPtr new_lf, double new_rhs, 
              VariablePtr x, BoundType lu, double new_b, VariablePtr y);
 
    ~SecantMod();
 
    // Implement Modification::applyToProblem()
    void applyToProblem(ProblemPtr problem);
 
    // base class method.
    ModificationPtr toRel(ProblemPtr, RelaxationPtr) const
    {return SecantModPtr();};
 
    // base class method.
    ModificationPtr fromRel(RelaxationPtr, ProblemPtr) const
    {return SecantModPtr();};
 
    // Implement Modification::undoToProblem()
    void undoToProblem(ProblemPtr problem);
 
    VariablePtr getY();
 
    // Implement Modification::write()
    void write(std::ostream &) const {};
 
  private:
    LinConModPtr lmod_;
 
    VarBoundModPtr xmod_;
 
    VarBoundMod2Ptr ymod_;
  };
}
#endif