plotexpressionarithmetic.h

//
// author Kazys Stepanas
//
// Copyright (c) CSIRO 2013
//
#ifndef __PLOTEXPRESSIONARITHMETIC_H_
#define __PLOTEXPRESSIONARITHMETIC_H_

#include "plotsconfig.h"

#include "plotbinaryoperator.h"
#include "plotunaryoperator.h"

#include <functional>

class PlotAdd : public PlotBinaryOperatorT<std::plus<double> > { public: PlotAdd(PlotExpression *left, PlotExpression *right) { setLeft(left); setRight(right); setOpStr(" + "); } };

class PlotSubtract : public PlotBinaryOperatorT<std::minus<double> > { public: PlotSubtract(PlotExpression *left, PlotExpression *right) { setLeft(left); setRight(right); setOpStr(" - "); } };

class PlotMultiply : public PlotBinaryOperatorT<std::multiplies<double> > { public: PlotMultiply(PlotExpression *left, PlotExpression *right) { setLeft(left); setRight(right); setOpStr(" * "); } };

class PlotDivide : public PlotBinaryOperatorT<std::divides<double> > { public: PlotDivide(PlotExpression *left, PlotExpression *right) { setLeft(left); setRight(right); setOpStr(" / "); } };

class PlotNegate : public PlotUnaryOperatorT<std::negate<double> > { public: PlotNegate(PlotExpression *operand) { setOperand(operand); setOpStr(" -"); } };

template<class T>
struct Power : public std::binary_function<T, T, T>
{
  inline T operator()(const T &left, const T &right) const { return T(pow(left, right)); }
};

class PlotPower : public PlotBinaryOperatorT<Power<double> > { public : PlotPower(PlotExpression *left, PlotExpression *right) { setLeft(left); setRight(right); setOpStr("^"); } };

#endif // __PLOTEXPRESSIONARITHMETIC_H_