BasicMinimumSeed.h

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// @(#)root/minuit2:$Id$
// Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
 
/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/
 
#ifndef ROOT_Minuit2_BasicMinimumSeed
#define ROOT_Minuit2_BasicMinimumSeed
 
#include "Minuit2/MinimumState.h"
#include "Minuit2/MinimumParameters.h"
#include "Minuit2/MinimumError.h"
#include "Minuit2/FunctionGradient.h"
#include "Minuit2/MnUserTransformation.h"
 
#include "Minuit2/StackAllocator.h"
 
namespace ROOT {
 
   namespace Minuit2 {
 
 
//extern StackAllocator gStackAllocator;
 
class BasicMinimumSeed {
 
public:
 
  BasicMinimumSeed(const MinimumState& state, const MnUserTransformation& trafo) : fState(state), fTrafo(trafo), fValid(true) {}
 
  ~BasicMinimumSeed() {}
 
  BasicMinimumSeed(const BasicMinimumSeed& seed) : fState(seed.fState), fTrafo(seed.fTrafo), fValid(seed.fValid) {}
 
  BasicMinimumSeed& operator=(const BasicMinimumSeed& seed) {
    fState = seed.fState;
    fTrafo = seed.fTrafo;
    fValid = seed.fValid;
    return *this;
  }
 
  void* operator new(size_t nbytes) {
    return StackAllocatorHolder::Get().Allocate(nbytes);
  }
 
  void operator delete(void* p, size_t /*nbytes*/) {
    StackAllocatorHolder::Get().Deallocate(p);
  }
 
  const MinimumState& State() const {return fState;}
  const MinimumParameters& Parameters() const {return State().Parameters();}
  const MinimumError& Error() const {return State().Error();};
  const FunctionGradient& Gradient() const {return State().Gradient();}
  const MnUserTransformation& Trafo() const {return fTrafo;}
  const MnMachinePrecision& Precision() const {return fTrafo.Precision();}
  double Fval() const {return State().Fval();}
  double Edm() const {return State().Edm();}
  unsigned int NFcn() const {return State().NFcn();}
  bool IsValid() const {return fValid;}
 
private:
 
  MinimumState fState;
  MnUserTransformation fTrafo;
  bool fValid;
};
 
  }  // namespace Minuit2
 
}  // namespace ROOT
 
#endif  // ROOT_Minuit2_BasicMinimumSeed