Xor.h

#ifndef Xor_h
#define Xor_h
#include "Function.h"
 
namespace cart
{
    template <class T>
    class Xor : public Function
    {
    public:
        Xor();
        Xor(uint numArgs);
        ~Xor();
 
        void evaluate(voidP inputs, void* result);
    };
 
    typedef Xor<uint> XorUint;
 
    template <class T>
    Xor<T>::Xor()
    {
        name_ = "XOR";
        numOfArgs_ = 2;
    }
 
    template <class T>
    Xor<T>::Xor(uint numArgs)
    {
        name_ = "XOR";
        numOfArgs_ = numArgs;
    }
 
    template <class T>
    Xor<T>::~Xor()
    {
    }
 
    template <class T>
    void Xor<T>::evaluate(voidP inputs, void* result)
    {
        T& xor_ = *(T*) result;
        stringstream ss;
        ss << *((string*) inputs.get());
        vector<T> readInputs;
        T input, maxSize = 0;
        uint i = 0;
        //received inputs are in format: input1 sizeOfInput1 input2 sizeOfInput2 ...
        //size of inputs are not important in XOR-ing because XOR will not produce leading 1's instead of
        //leading 0's like NOT or XNOR function
        while (ss >> input)
        {
            readInputs.push_back(input);
            ss >> input;
            if (input > maxSize)
            {
                maxSize = input;
            }
            i += 2;
            if (i == 2 * numOfArgs_)
            {
                break;
            }
        }
 
        xor_ = readInputs.at(0);
        for (int i = 1; i < (int)numOfArgs_; i++)
        {
            xor_ ^= readInputs.at(i);
        }
    }
 
}
 
#endif /* Xor_h */