Sub.h

#ifndef Sub_h
#define Sub_h
#include "Primitive.h"
 
namespace Tree {
namespace Primitives {
 
template <class T>
class SubT : public Primitive
{
public:
    SubT(void);
    void execute(void* result, Tree& tree);
    ~SubT(void);
};
typedef SubT<double> Sub;
 
template <class T>
SubT<T>::SubT(void)
{
    nArguments_ = 2;
    name_ = "-";
    complementName_ = "+";
}
 
 
template <class T>
SubT<T>::~SubT(void)
{
}
 
template <class T>
void SubT<T>::execute(void* result, Tree& tree)
{   
    T prvi, drugi;
    T& res = *(T*)result;
    getNextArgument(&prvi, tree);
    getNextArgument(&drugi, tree);
    res = prvi - drugi;
}
 
}
}
 
#endif