/usr/include/trilinos/AnasaziOperatorTraits.hpp is in libtrilinos-anasazi-dev 12.12.1-5.
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// ***********************************************************************
//
// Anasazi: Block Eigensolvers Package
// Copyright 2004 Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
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// 2. Redistributions in binary form must reproduce the above copyright
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// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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//
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// @HEADER
#ifndef ANASAZI_OPERATOR_TRAITS_HPP
#define ANASAZI_OPERATOR_TRAITS_HPP
/*! \file AnasaziOperatorTraits.hpp
\brief Virtual base class which defines basic traits for the operator type
*/
#include "AnasaziConfigDefs.hpp"
#include "AnasaziTypes.hpp"
namespace Anasazi {
//! \brief Exceptions thrown to signal error in operator application.
class OperatorError : public AnasaziError
{public: OperatorError(const std::string& what_arg) : AnasaziError(what_arg) {}};
/*! \brief This is the default struct used by OperatorTraits<ScalarType, MV, OP> class to produce a
compile time error when the specialization does not exist for operator type <tt>OP</tt>.
*/
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 Anasazi::OperatorTraits class does not exist for type
<tt>OP</tt>, or is not complete.
*/
static inline void notDefined() { return 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 anasazi_opvec_interfaces
*/
template <class ScalarType, class MV, class OP>
class OperatorTraits
{
public:
//! @name Operator application method.
//@{
//! 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 )
{ UndefinedOperatorTraits<ScalarType, MV, OP>::notDefined(); };
//@}
};
} // end Anasazi namespace
#endif // ANASAZI_OPERATOR_TRAITS_HPP
// end of file AnasaziOperatorTraits.hpp
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