HessianOfLag.h

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//
//     Minotaur -- It's only 1/2 bull
//
//     (C)opyright 2009 - 2025 The Minotaur Team.
//
 
#ifndef MINOTAURHESSIAN_H
#define MINOTAURHESSIAN_H
 
#include "Types.h"
 
namespace Minotaur {
 
  struct LTHessStor {
    UInt nz;
    UInt nlVars;
    VariablePtr *rows;
    std::deque<UInt> *colQs;
    UInt *cols;
    UInt *starts;
  };
  
 
  class HessianOfLag {
    public:
      HessianOfLag();
 
      HessianOfLag(Problem *p);
 
      //HessianOfLag(ConstObjPtr obj, const ConstraintVector & cons, 
      //    const UInt n);
 
      virtual ~HessianOfLag();
 
      virtual UInt getNumNz() const;
 
      virtual void fillRowColIndices(UInt *irow, UInt *jcol);
 
      virtual void fillRowColValues(const double *x, double obj_mult,
                                    const double *con_mult, double *values, 
                                    int *error);
 
      virtual void negateObj() {};
 
      virtual void setupRowCol();
 
      virtual void write(std::ostream &out) const;
 
    private:
      double etol_;
 
      FunctionPtr obj_;
 
      Problem *p_;
      LTHessStor stor_;
 
  };
 
  typedef HessianOfLag* HessianOfLagPtr;
  typedef const HessianOfLag* ConstHessianOfLagPtr;  
 
}
#endif