BelosOperator.hpp

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00001 // @HEADER
00002 // ***********************************************************************
00003 //
00004 //                 Belos: Block Linear Solvers Package
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 //
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00027 // @HEADER
00028 
00029 #ifndef BELOS_OPERATOR_HPP
00030 #define BELOS_OPERATOR_HPP
00031 
00037 #include "BelosOperatorTraits.hpp"
00038 #include "BelosMultiVec.hpp"
00039 #include "BelosConfigDefs.hpp"
00040 
00057 namespace Belos {
00058   
00059   template <class ScalarType>
00060   class Operator {
00061   public:
00062     
00064 
00065     
00067     Operator() {};
00068     
00070     virtual ~Operator() {};
00072     
00074 
00075     
00081     virtual void Apply ( const MultiVec<ScalarType>& x, 
00082        MultiVec<ScalarType>& y, ETrans trans=NOTRANS ) const = 0;
00083   };
00084   
00086   //
00087   // Implementation of the Belos::OperatorTraits for Belos::Operator 
00088   //                                               and Belos::MultiVec.
00089   //
00091   
00099   template <class ScalarType> 
00100   class OperatorTraits < ScalarType, MultiVec<ScalarType>, Operator<ScalarType> > 
00101   {
00102   public:
00103     
00105     static void Apply ( const Operator<ScalarType>& Op, 
00106       const MultiVec<ScalarType>& x, 
00107       MultiVec<ScalarType>& y,
00108       ETrans trans=NOTRANS )
00109     { Op.Apply( x, y, trans ); }
00110     
00111   };
00112   
00113 } // end Belos namespace
00114 
00115 #endif
00116 
00117 // end of file BelosOperator.hpp
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