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NlpLinsys.hh

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#ifndef NLPLINSYS
#define NLPLINSYS

#include "IotrRefCount.hh"
#include "IotrHandle.hh"

class NlpGrads;
class NlpHessian;
class NlpBounds;
class NlpLinsysDiag;
class NlpLinsysSol;

class NlpLinsys : public IotrRefCount {
public:
  virtual void factor( NlpGrads     & grads,
                       NlpHessian & hessian,
                       NlpLinsysDiag & diag ) = 0;

  virtual void newtonStep( NlpLinsysSol &  step, NlpGrads & grads ) = 0;

  virtual int isConvex() = 0;

  virtual NlpLinsysDiag * newDiagonal() = 0;
  virtual NlpLinsysSol  * newSolutionVector() = 0;
};

typedef Handle<NlpLinsys> NlpLinsysHandle;

#endif

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