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GenericLinearOperator.h
// Copyright (C) 2012 Anders Logg
//
// This file is part of DOLFIN.
//
// DOLFIN 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 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// First added: 2012-08-20
// Last changed: 2012-12-12
#ifndef __GENERIC_LINEAR_OPERATOR_H
#define __GENERIC_LINEAR_OPERATOR_H
#include "LinearAlgebraObject.h"
namespace dolfin
{
// Forward declarations
class GenericVector;
class GenericLinearAlgebraFactory;
class GenericLinearOperator : public virtual LinearAlgebraObject
{
public:
// Destructor
virtual ~GenericLinearOperator() {}
virtual std::size_t size(std::size_t dim) const = 0;
virtual void mult(const GenericVector& x, GenericVector& y) const = 0;
virtual std::string str(bool verbose) const = 0;
protected:
friend class LinearOperator;
virtual void init_layout(const GenericVector& x,
const GenericVector& y,
GenericLinearOperator* wrapper)
{
dolfin_error("GenericLinearOperator.h",
"initialize backend implementation of linear operator",
"Missing init_layout() function for backend");
}
};
}
#endif
dolfin::GenericLinearAlgebraFactory
Base class for LinearAlgebra factories.
Definition GenericLinearAlgebraFactory.h:47
dolfin::GenericLinearOperator
Definition GenericLinearOperator.h:43
dolfin::GenericLinearOperator::str
virtual std::string str(bool verbose) const =0
Return informal string representation (pretty-print).
dolfin::GenericLinearOperator::mult
virtual void mult(const GenericVector &x, GenericVector &y) const =0
Compute matrix-vector product y = Ax.
dolfin::GenericLinearOperator::init_layout
virtual void init_layout(const GenericVector &x, const GenericVector &y, GenericLinearOperator *wrapper)
Definition GenericLinearOperator.h:64
dolfin::GenericLinearOperator::size
virtual std::size_t size(std::size_t dim) const =0
Return size of given dimension.
dolfin::GenericVector
This class defines a common interface for vectors.
Definition GenericVector.h:48
dolfin::LinearAlgebraObject
Definition LinearAlgebraObject.h:37
dolfin
Definition adapt.h:30
dolfin::dolfin_error
void dolfin_error(std::string location, std::string task, std::string reason,...)
Definition log.cpp:129