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// ***********************************************************************
//
// Teuchos: Common Tools 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 TEUCHOS_POLYNOMIAL_TRAITS_HPP
#define TEUCHOS_POLYNOMIAL_TRAITS_HPP
#include "Teuchos_RCP.hpp"
namespace Teuchos {
//! Traits class for polynomial coefficients in Teuchos::Polynomial.
/*!
* This class provides traits for implementing Teuchos::Polynomial. The
* default template definition here will work for any scalar type. Any other
* coefficient type for Teuchos::Polynomial should provide a specialization
* of this traits class for that type that mirrors the default definition
* below.
*/
template <typename Scalar>
class PolynomialTraits {
public:
//! Typename of coefficients
typedef Scalar coeff_type;
//! Typename of scalars
typedef Scalar scalar_type;
//! Clone a coefficient
static inline Teuchos::RCP<coeff_type> clone(const coeff_type& c) {
return Teuchos::rcp(new coeff_type(c));
}
//! Copy a coefficient
static inline void copy(const coeff_type& x, coeff_type* y) {
*y = x;
}
//! Assign a scalar to a coefficient
static inline void assign(coeff_type* y, const scalar_type& alpha) {
*y = alpha;
}
//! y = x + beta*y
static inline void update(coeff_type* y, const coeff_type& x,
const scalar_type& beta) {
*y = x + beta*(*y);
}
}; // class PolynomialTraits
} // end namespace Teuchos
#endif // TEUCHOS_POLYNOMIAL_TRAITS_HPP
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