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//
// Thyra: Interfaces and Support for Abstract Numerical Algorithms
// Copyright (2004) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef THYRA_UNIVERSAL_MULTI_VECTOR_RANDOMIZER_HPP
#define THYRA_UNIVERSAL_MULTI_VECTOR_RANDOMIZER_HPP
#include "Thyra_MultiVectorRandomizerBase.hpp"
#include "Thyra_MultiVectorStdOps.hpp"
namespace Thyra {
/** \brief Univeral <tt>MultiVectorRandomizerBase</tt> subclass that is
* compatible with all <tt>MultiVectorBase</tt> objects.
*
* This class simply uses <tt>randomize(-1,+1,mv)</tt> which is based on RTOp
* and simply creates random coefficients between -1 and +1.
*
* \ingroup Thyra_Op_Vec_ANA_Development_grp
*/
template<class Scalar>
class UniversalMultiVectorRandomizer : public MultiVectorRandomizerBase<Scalar> {
public:
/** \name Overridden from MultiVectorRandomizerBase */
//@{
/** \brief . */
bool isCompatible( const VectorSpaceBase<Scalar> &space ) const;
/** \brief . */
void randomize( MultiVectorBase<Scalar> *mv );
//@}
};
/** \brief Nonmember constructor.
*
* \relates UniversalMultiVectorRandomizer
*/
template<class Scalar>
RCP<UniversalMultiVectorRandomizer<Scalar> >
universalMultiVectorRandomizer()
{
return Teuchos::rcp(new UniversalMultiVectorRandomizer<Scalar>());
}
// //////////////////////////////
// Definitions
template<class Scalar>
bool UniversalMultiVectorRandomizer<Scalar>::isCompatible( const VectorSpaceBase<Scalar> &space ) const
{
return true;
}
template<class Scalar>
void UniversalMultiVectorRandomizer<Scalar>::randomize( MultiVectorBase<Scalar> *mv )
{
typedef Teuchos::ScalarTraits<Scalar> ST;
Thyra::randomize(Scalar(-ST::one()),Scalar(+ST::one()),mv);
}
} // namespace Thyra
#endif // THYRA_UNIVERSAL_MULTI_VECTOR_RANDOMIZER_HPP
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