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// This file is part of ff3d - http://www.freefem.org/ff3d
// Copyright (C) 2001, 2002, 2003 Stphane Del Pino
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// $Id: VariationalOperatorFdxGV.hpp,v 1.4 2004/07/11 14:11:14 delpinux Exp $
#ifndef VARIATIONAL_OPERATOR_F_DX_G_V_HPP
#define VARIATIONAL_OPERATOR_F_DX_G_V_HPP
#include <VariationalLinearOperator.hpp>
#include <UserFunction.hpp>
class VariationalOperatorFdxGV
: public VariationalLinearOperator
{
private:
ReferenceCounting<UserFunction> __f; /**< the \f$ f\f$ function */
ReferenceCounting<UserFunction> __g; /**< the \f$ g\f$ function */
const size_t __i; /**< The \f$ i \f$ in \f$\partial_{x_i}\f$ */
public:
/**
*
* Access to \f$ f\f$
*
* @return *__f
*/
const UserFunction& f() const
{
return *__f;
}
/**
*
* Access to \f$ g\f$
*
* @return *__g
*/
const UserFunction& g() const
{
return *__g;
}
const size_t& number() const
{
return __i;
}
/**
* "Multiplies" the operator by a function
*
* @param u the given function
*
* @return the new operator
*/
ReferenceCounting<VariationalLinearOperator>
operator * (ConstReferenceCounting<UserFunction> u) const
{
VariationalOperatorFdxGV* newOperator = new VariationalOperatorFdxGV(*this);
(*newOperator).__f = new MulUserFunction(__f, u);
return newOperator;
}
/**
* Constructor
*
* @param testFunctionNumber the test function number
* @param f the given \f$ f \f$ function
* @param g the given \f$ g \f$ function
* @param i the index in \f$ \int f \partial_{x_i} g \f$
*
*/
VariationalOperatorFdxGV(const size_t testFunctionNumber,
ReferenceCounting<UserFunction> f,
ReferenceCounting<UserFunction> g,
const size_t i)
: VariationalLinearOperator(VariationalLinearOperator::FdxGV,
testFunctionNumber),
__f(f),
__g(g),
__i(i)
{
;
}
/**
* Copy constructor
*
* @param V another VariationalOperatorFdxGV
*
*/
VariationalOperatorFdxGV(const VariationalOperatorFdxGV& V)
: VariationalLinearOperator(V),
__f(V.__f),
__g(V.__g),
__i(V.__i)
{
;
}
/**
* Destructor
*
*
*/
~VariationalOperatorFdxGV()
{
;
}
};
#endif // VARIATIONAL_OPERATOR_F_DX_G_V_HPP
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