#ifndef OVERLAP_WILSON_PARTFRAC_TANH_FERMION_H
#define OVERLAP_WILSON_PARTFRAC_TANH_FERMION_H

#include <Grid.h>

namespace Grid {

  namespace QCD {

    class OverlapWilsonPartialFractionTanhFermion : public PartialFractionFermion5D
    {
    public:

      virtual void   Instantiatable(void){};
      // Constructors
    OverlapWilsonPartialFractionTanhFermion(LatticeGaugeField &_Umu,
					    GridCartesian         &FiveDimGrid,
					    GridRedBlackCartesian &FiveDimRedBlackGrid,
					    GridCartesian         &FourDimGrid,
					    GridRedBlackCartesian &FourDimRedBlackGrid,
					    RealD _mass,RealD _M5,
					    RealD scale) :
      
      // b+c=scale, b-c = 0 <=> b =c = scale/2
      PartialFractionFermion5D(_Umu,
			       FiveDimGrid,
			       FiveDimRedBlackGrid,
			       FourDimGrid,
			       FourDimRedBlackGrid,_mass,_M5)
	{
	  assert((Ls&0x1)==1); // Odd Ls required
	  int nrational=Ls-1;// Even rational order
	  Approx::zolotarev_data *zdata = Approx::higham(1.0,nrational);// eps is ignored for higham
	  SetCoefficientsTanh(zdata,scale);
	  Approx::zolotarev_free(zdata);
	}
    };
  }
}
#endif