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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: SolutionExpression.hpp,v 1.2 2003/05/04 18:09:01 delpinux Exp $
#ifndef _SOLUTION_EXPRESSION_HPP_
#define _SOLUTION_EXPRESSION_HPP_
#include <Expression.hpp>
#include <Variable.hpp>
/*!
\class SolutionExpression
This class defines the base class of Solution expressions.
\author Stephane Del Pino
*/
class SolutionExpression
: public Expression
{
protected:
ReferenceCounting<FunctionExpression> __solution;
public:
enum SolutionType {
undefined,
value,
variable
};
ReferenceCounting<FunctionExpression>
operator=(ReferenceCounting<FunctionExpression> u);
private:
SolutionExpression::SolutionType __solutionType;
public:
ReferenceCounting<FunctionExpression> solution();
const SolutionExpression::SolutionType& solutionType() const
{
return __solutionType;
}
SolutionExpression(const SolutionExpression& u);
SolutionExpression(const SolutionExpression::SolutionType& t);
virtual ~SolutionExpression();
};
class SolutionExpressionVariable
: public SolutionExpression
{
private:
ReferenceCounting<SolutionVariable> __solutionVariable;
std::ostream& put(std::ostream& os) const
{
os << (*__solutionVariable).name() << ": " << (*(*__solutionVariable).expression());
return os;
}
public:
void execute()
{
;
}
ReferenceCounting<SolutionVariable> variable() const
{
return __solutionVariable;
}
SolutionExpressionVariable(ReferenceCounting<SolutionVariable> r);
SolutionExpressionVariable(const SolutionExpressionVariable& e);
~SolutionExpressionVariable();
};
class SolutionExpressionUndefined
: public SolutionExpression
{
private:
std::ostream& put(std::ostream& os) const
{
os << "undefined solution";
return os;
}
public:
void execute();
SolutionExpressionUndefined();
SolutionExpressionUndefined(const SolutionExpressionUndefined& u);
~SolutionExpressionUndefined();
};
#endif // _SOLUTION_EXPRESSION_HPP_
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