StkFunc.h

#ifndef gridripper_math_expr_StkFunc_h
#define gridripper_math_expr_StkFunc_h

#include <gridripper/math/expr/StkOp.h>

namespace gridripper { namespace math { namespace expr {

using namespace std;

class StkFunc: public StkOp
{
protected:
    string stkfName;

    int stkfArgc;

public:
    StkFunc(const StkFunc& other);

    virtual ~StkFunc();

protected:
    StkFunc(const string& name, int argc);

public:
    const string& getOpName() const { return stkfName; }

    int getArgCount() const { return stkfArgc; }

    int getStackIncrement() const { return 1 - stkfArgc; }

    virtual bool equalsOp(const StkOp& other) const {
        if(this == &other) {
            return true;
        }
        if(stkfName != "") {
            return stkfName == other.getOpName()
                && getArgCount() == other.getArgCount();
        }
        return false;
    }

    virtual bool dependsOn(const StkOp& f) const {
        return false;
    }

    virtual void evalStack(GReal_t* &p) const =0;

    virtual string getClassName() const { return "StkFunc"; }
};

} } } /* namespace gridripper::math::expr */

#endif /* gridripper_math_expr_StkFunc */