TSFSimpleIdentityOpImpl.hpp

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// 
//           TSFExtended: Trilinos Solver Framework Extended
//                 Copyright (2004) Sandia Corporation
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#ifndef TSF_SIMPLE_IDENTITY_OP_IMPL_HPP
#define TSF_SIMPLE_IDENTITY_OP_IMPL_HPP



#include "TSFSimpleIdentityOpDecl.hpp"
#include "SundanceOut.hpp"
#include "SundanceTabs.hpp"

#ifndef HAVE_TEUCHOS_EXPLICIT_INSTANTIATION
#include "TSFLinearOperatorImpl.hpp"
#include "TSFSimplifiedLinearOpBaseImpl.hpp"
#endif


namespace TSFExtended
{
using namespace Teuchos;
using namespace Sundance;


/* ---- Identity op ------- */

template <class Scalar> inline
SimpleIdentityOp<Scalar>::SimpleIdentityOp(const VectorSpace<Scalar>& space)
  : SimplifiedLinearOpWithSpaces<Scalar>(space, space) {}


template <class Scalar> inline
void SimpleIdentityOp<Scalar>::applyOp(const Thyra::EOpTransp M_trans,
  const Vector<Scalar>& in,
  Vector<Scalar> out) const
{
  Tabs tab(0);
  SUNDANCE_MSG2(this->verb(), tab << "SimpleZeroOp::applyOp()");
  out.acceptCopyOf(in);
  SUNDANCE_MSG2(this->verb(), tab << "done SimpleIdentityOp::applyOp()");
}

template <class Scalar> inline
std::string SimpleIdentityOp<Scalar>::description() const 
{return "I(" + this->domain()->description() + ")";}



template <class Scalar> inline
LinearOperator<Scalar> identityOperator(
  const VectorSpace<Scalar>& space)
{
  RCP<LinearOpBase<Scalar> > op 
    = rcp(new SimpleIdentityOp<Scalar>(space));

  return op;
}



}

#endif