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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: ScalarFunctionModulo.hpp,v 1.3 2007/06/13 23:04:48 delpinux Exp $
#ifndef SCALAR_FUNCTION_MODULO_HPP
#define SCALAR_FUNCTION_MODULO_HPP
#include <ScalarFunctionBase.hpp>
/**
* @file ScalarFunctionModulo.hpp
* @author Stephane Del Pino
* @date Thu Jul 20 11:33:47 2006
*
* @brief returns the modulo of two operands @f$ f\% g @f$
*
*/
class ScalarFunctionModulo
: public ScalarFunctionBase
{
private:
ConstReferenceCounting<ScalarFunctionBase>
__f; /**< first operand @f$ f @f$ */
ConstReferenceCounting<ScalarFunctionBase>
__g; /**< second operand @f$ g @f$ */
/**
* Writes the function to a stream
*
* @param os output stream
*
* @return os
*/
std::ostream& __put(std::ostream& os) const
{
os << '(' << *__f << '%' << *__g << ')';
return os;
}
public:
/**
* Evaluates the function at position @f$ X @f$
*
* @param X position of evaluation
*
* @return @f$ E(f(X)) \bmod E(g(X)) @f$
*/
real_t operator()(const TinyVector<3,real_t>& X) const
{
return static_cast<int>((*__f)(X))%static_cast<int>((*__g)(X));
}
/**
* Checks if the function can be simplified
*
* @return false
*/
bool canBeSimplified() const
{
return false;
}
/**
* Constructor
*
* @param f first operand @f$ f @f$
* @param g second operand @f$ g @f$
*/
ScalarFunctionModulo(ConstReferenceCounting<ScalarFunctionBase> f,
ConstReferenceCounting<ScalarFunctionBase> g)
: ScalarFunctionBase(ScalarFunctionBase::modulo),
__f(f),
__g(g)
{
;
}
/**
* Copy constructor
*
* @param f given function
*/
ScalarFunctionModulo(const ScalarFunctionModulo& f)
: ScalarFunctionBase(f),
__f(f.__f),
__g(f.__g)
{
;
}
/**
* Destructor
*
*/
~ScalarFunctionModulo()
{
;
}
};
#endif // SCALAR_FUNCTION_MODULO_HPP
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