MnVectorTransform.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_MnVectorTransform
#define ROOT_Minuit2_MnVectorTransform
 
#include "Minuit2/MnMatrix.h"
 
#include <vector>
 
namespace ROOT {
 
namespace Minuit2 {
 
class MnVectorTransform {
 
public:
   MnVectorTransform() {}
 
   ~MnVectorTransform() {}
 
   std::vector<double> operator()(const MnAlgebraicVector &avec) const
   {
 
      std::vector<double> result;
      result.reserve(avec.size());
 
      for (unsigned int i = 0; i < avec.size(); i++)
         result.push_back(avec(i));
 
      return result;
   }
};
 
} // namespace Minuit2
 
} // namespace ROOT
 
#endif // ROOT_Minuit2_MnVectorTransform