smear_APE.h

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#ifndef SMEAR_APE_INCLUDED
#define SMEAR_APE_INCLUDED

#include "smear.h"
#include "staples.h"

#include "bridgeIO.h"
using Bridge::vout;

//- parameters class
class Parameters_Smear_APE : virtual public Parameters
{
 public:
  Parameters_Smear_APE();
};
//- end


class Smear_APE : public Smear
{
 public:
  static const std::string class_name;

 private:
  int m_Ndim;                    
  std::valarray<double> m_rho;   
  Projection            *m_proj; 

 public:
  Smear_APE(Projection *proj)
    : Smear(),
      m_Ndim(CommonParameters::Ndim()), m_rho(0.0, m_Ndim * m_Ndim),
      m_proj(proj) {}

  Smear_APE(unique_ptr<Projection>& proj)
    : Smear(),
      m_Ndim(CommonParameters::Ndim()), m_rho(0.0, m_Ndim * m_Ndim),
      m_proj(proj.get()) {}

  ~Smear_APE() {}

  void set_parameters(const Parameters& params);

  void set_parameters(const double rho1);

  void set_parameters(const std::vector<double>& rho);

  void smear(Field_G& Usmear, const Field_G& U);

 private:
  void staple(Field_G&, const Field_G&, const Field_G&,
              int mu, int nu);
};
#endif