AnasaziSortManager.hpp

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//                 Anasazi: Block Eigensolvers Package
//                 Copyright (2004) Sandia Corporation
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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#ifndef ANASAZI_SORTMANAGER_HPP
#define ANASAZI_SORTMANAGER_HPP

#include "AnasaziConfigDefs.hpp"
#include "AnasaziTypes.hpp"
#include "Teuchos_TestForException.hpp"



namespace Anasazi {



  class SortManagerError : public AnasaziError
  {public: SortManagerError(const std::string& what_arg) : AnasaziError(what_arg) {}};


  template<class ScalarType, class MV, class OP>
  class Eigensolver;

  template<class ScalarType, class MV, class OP>
  class SortManager {
    
  public:
    
    SortManager() {};

    virtual ~SortManager() {};


    virtual void sort(Eigensolver<ScalarType,MV,OP>* solver, const int n, std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> &evals, std::vector<int> *perm = 0) const = 0;

    virtual void sort(Eigensolver<ScalarType,MV,OP>* solver, 
                      const int n,
                      std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> &r_evals, 
                      std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> &i_evals, 
                      std::vector<int> *perm = 0) const = 0;
    
  };
  
}

#endif // ANASAZI_SORTMANAGER_HPP

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