AnasaziSortManager.hpp

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// @HEADER
// *****************************************************************************
//                 Anasazi: Block Eigensolvers Package
//
// Copyright 2004 NTESS and the Anasazi contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef ANASAZI_SORTMANAGER_HPP
#define ANASAZI_SORTMANAGER_HPP

#include "AnasaziConfigDefs.hpp"
#include "AnasaziTypes.hpp"
#include "Teuchos_Assert.hpp"
#include "Teuchos_ParameterList.hpp"



namespace Anasazi {



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


  template<class MagnitudeType>
  class SortManager {
    
  public:

    SortManager() {};
    
    SortManager(Teuchos::ParameterList &pl) {};

    virtual ~SortManager() {};

    virtual void sort(std::vector<MagnitudeType> &evals, Teuchos::RCP<std::vector<int> > perm = Teuchos::null, int n = -1) const = 0;

    virtual void sort(std::vector<MagnitudeType> &r_evals, 
                      std::vector<MagnitudeType> &i_evals, 
                      Teuchos::RCP<std::vector<int> > perm = Teuchos::null,
                      int n = -1) const = 0;
    
  };
  
}

#endif // ANASAZI_SORTMANAGER_HPP