MnTraceObject.h

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// @(#)root/minuit2:$Id$
// Author:  L. Moneta 2012

/**********************************************************************
 *                                                                    *
 * Copyright (c) 2012 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/

#ifndef ROOT_Minuit2_MnTraceObject
#define ROOT_Minuit2_MnTraceObject

namespace ROOT {

   namespace Minuit2 {

      class MinimumState;
      class MnUserParameterState;

      class MnTraceObject {

      public:

         MnTraceObject(int parNumber = -1) :
            fUserState(0),
            fParNumber(parNumber) {}

         virtual ~MnTraceObject() {}

         virtual void Init(const MnUserParameterState & state) { fUserState = &state; }

         virtual void operator() (int i, const MinimumState & state);

         const MnUserParameterState & UserState() const { return *fUserState; }

         void SetParNumber(int number) { fParNumber = number; }

         int  ParNumber() const { return fParNumber; }

      private:

         const MnUserParameterState * fUserState;
         int fParNumber;
      };

   }  // namespace Minuit2
}  // namespace ROOT

#endif  // ROOT_Minuit2_MnTraceIter