Thyra_LinearOpBase.hpp

00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
00005 //                 Copyright (2004) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef THYRA_LINEAR_OP_BASE_HPP
00030 #define THYRA_LINEAR_OP_BASE_HPP
00031 
00032 #include "Thyra_LinearOpBaseDecl.hpp"
00033 #include "Thyra_MultiVectorBase.hpp"
00034 #include "Thyra_VectorSpaceBase.hpp"
00035 
00036 namespace Thyra {
00037 
00038 // Virtual functions with default implementations
00039 
00040 template<class RangeScalar, class DomainScalar>
00041 bool LinearOpBase<RangeScalar,DomainScalar>::applySupports(
00042   const EConj conj
00043   ) const
00044 {
00045   return (
00046     Teuchos::ScalarTraits<RangeScalar>::isComplex ? conj==NONCONJ_ELE : true
00047     );
00048 }
00049 
00050 template<class RangeScalar, class DomainScalar>
00051 bool LinearOpBase<RangeScalar,DomainScalar>::applyTransposeSupports(
00052   const EConj conj
00053   ) const
00054 {
00055   return false;
00056 }
00057 
00058 template<class RangeScalar, class DomainScalar>
00059 void LinearOpBase<RangeScalar,DomainScalar>::applyTranspose(
00060   const EConj conj,
00061   const MultiVectorBase<RangeScalar> &X,
00062   MultiVectorBase<DomainScalar> *Y,
00063   const DomainScalar alpha,
00064   const DomainScalar beta
00065   ) const
00066 {
00067   const std::string
00068     &typeName = TypeNameTraits<LinearOpBase<RangeScalar,DomainScalar> >::name();
00069   TEST_FOR_EXCEPTION(
00070     true, std::logic_error,
00071     typeName << "::applyTranspose(...): " <<
00072     "Error, the concrete subclass described as { " << this->description() << " } "
00073     " with this->applyTransposeSupports("<<toString(conj)<<")="<<this->applyTransposeSupports(conj)
00074     << " did not override this function and does not support transposes."
00075     );
00076 }
00077 
00078 template<class RangeScalar, class DomainScalar>
00079 RCP<const LinearOpBase<RangeScalar,DomainScalar> > 
00080 LinearOpBase<RangeScalar,DomainScalar>::clone() const
00081 {
00082   return Teuchos::null;
00083 }
00084 
00085 } // end namespace Thyra
00086 
00087 #endif // THYRA_LINEAR_OP_BASE_HPP

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