TSFSimpleZeroOpImpl.hpp

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/* ***********************************************************************
// 
//           TSFExtended: Trilinos Solver Framework Extended
//                 Copyright (2004) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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#ifndef TSF_SIMPLE_ZERO_OP_IMPL_HPP
#define TSF_SIMPLE_ZERO_OP_IMPL_HPP



#include "TSFSimpleZeroOpDecl.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;




/* ---- Zero op ------- */

template <class Scalar> inline
SimpleZeroOp<Scalar>::SimpleZeroOp(const VectorSpace<Scalar>& domain,
  const VectorSpace<Scalar>& range)
  : SimplifiedLinearOpWithSpaces<Scalar>(domain, range) {}



template <class Scalar> inline
void SimpleZeroOp<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.zero();

  SUNDANCE_MSG2(this->verb(), tab << "done SimpleZeroOp::applyOp()");
}

/* */
template <class Scalar> inline
std::string SimpleZeroOp<Scalar>::description() const 
{return "ZeroOp(domain=" 
    + this->domain()->description() 
    + ", range=" + this->range()->description() + ")";}



template <class Scalar> inline
LinearOperator<Scalar> zeroOperator(
  const VectorSpace<Scalar>& domain,
  const VectorSpace<Scalar>& range)
{
  RCP<LinearOpBase<Scalar> > op 
    = rcp(new SimpleZeroOp<Scalar>(domain, range));

  return op;
}


}

#endif