/usr/include/trilinos/BelosOperatorTraits.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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// ***********************************************************************
//
// Belos: Block Linear Solvers Package
// 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 BELOS_OPERATOR_TRAITS_HPP
#define BELOS_OPERATOR_TRAITS_HPP
/*! \file BelosOperatorTraits.hpp
\brief Virtual base class which defines the operator interface
required by the iterative linear solver.
*/
#include "BelosConfigDefs.hpp"
namespace Belos {
template< class ScalarType, class MV, class OP >
struct UndefinedOperatorTraits
{
//! This function should not compile if there is an attempt to instantiate!
/*! \note Any attempt to compile this function results in a compile time error. This means
that the template specialization of Belos::OperatorTraits class does not exist for type
<tt>OP</tt>, or is not complete.
*/
static inline void notDefined() { OP::this_type_is_missing_a_specialization(); };
};
/*! \brief Virtual base class which defines basic traits for the operator type.
An adapter for this traits class must exist for the <tt>MV</tt> and <tt>OP</tt> types.
If not, this class will produce a compile-time error.
\ingroup belos_opvec_interfaces
*/
template <class ScalarType, class MV, class OP>
class OperatorTraits
{
public:
//! Application method which performs operation <b>y = Op*x</b>. An OperatorError exception is thrown if there is an error.
static void Apply ( const OP& Op,
const MV& x,
MV& y,
ETrans trans = NOTRANS )
{ UndefinedOperatorTraits<ScalarType, MV, OP>::notDefined(); };
};
} // end Belos namespace
#endif // BELOS_OPERATOR_TRAITS_HPP
// end of file BelosOperatorTraits.hpp
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