BelosOperatorT.hpp

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// @HEADER
// *****************************************************************************
//                 Belos: Block Linear Solvers Package
//
// Copyright 2004-2016 NTESS and the Belos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
#ifndef BELOS_OPERATORT_HPP
#define BELOS_OPERATORT_HPP

#include "BelosOperatorTraits.hpp"

namespace Belos {
  // Base class for the Belos OP template type. Similar to Belos::Operator<> but this one deals with any kind of vector (not only Belos::MultiVec as the Belos::Operator interface)
  template <class MV>
  class OperatorT {

  public:



    OperatorT() {};

    virtual ~OperatorT() {};



    virtual void Apply ( const MV & x, MV & y, ETrans trans=NOTRANS ) const = 0;
  };

  template <class ScalarType, class MV>
  class OperatorTraits<ScalarType, MV, OperatorT<MV> >
  {

  public:
    static void Apply (const OperatorT<MV>& Op,
                       const MV& x,
                       MV& y, ETrans trans=NOTRANS) {
      Op.Apply (x, y, trans);
    }
  };

} // namespace Belos

#endif // BELOS_OPERATORT_HPP