Thyra_get_Epetra_Operator.hpp

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#ifndef THYRA_GET_EPETRA_OPERATOR_HPP
#define THYRA_GET_EPETRA_OPERATOR_HPP

#include "Thyra_EpetraTypes.hpp"
#include "Teuchos_TestForException.hpp"
#include "Teuchos_TypeNameTraits.hpp"
#include <stdexcept> // std::invalid_argument

namespace Thyra {

template<class Scalar>
Teuchos::RCP<Epetra_Operator>
get_Epetra_Operator (LinearOpBase<Scalar>& /* op */)
{
  TEUCHOS_TEST_FOR_EXCEPTION
    (true, std::invalid_argument, "Thyra::get_Epetra_Operator: This function "
     "only works if Scalar=double, because for Epetra objects, the only Scalar"
     " type is double.  Instead, Scalar = " <<
     Teuchos::TypeNameTraits<Scalar>::name () << ".");
}

template<>
Teuchos::RCP<Epetra_Operator>
get_Epetra_Operator( LinearOpBase<double> &op );

template<class Scalar>
Teuchos::RCP<const Epetra_Operator>
get_Epetra_Operator( const LinearOpBase<Scalar> & /* op */ )
{
  TEUCHOS_TEST_FOR_EXCEPTION
    (true, std::invalid_argument, "Thyra::get_Epetra_Operator: This function "
     "only works if Scalar=double, because for Epetra objects, the only Scalar"
     " type is double.  Instead, Scalar = " <<
     Teuchos::TypeNameTraits<Scalar>::name () << ".");
}

template<>
Teuchos::RCP<const Epetra_Operator>
get_Epetra_Operator( const LinearOpBase<double> &op );

} // namespace Thyra


#endif // THYRA_GET_EPETRA_OPERATOR_HPP