Operator Overloading

[sameena]

Hi

Doing a course in C++.Net which upto now has been ok and interesting. However Operator Overloading is confusing me to a great deal. There is plenty written on the subject but for Computer Scientists who just love mathematics and complicated text! To find something simple – it does not exist. I can use operator overloading like a parrot but I want to know what exactly is going on…how does the compiler treat an overloaded operator…etc.

We were asked to make an Exponent class that will allow us to overload the ^ operator so that we can perform exponential notation so that you can have iResult=iNumber ^10 where iNumber equals 10 so that iResult equals 1000. This is my zillionth attempt but the overloaded function is not called..please help.

This is the class:

#pragma once<br /> #include <iostream><br /> #include <string><br /> using namespace std;<br /> class Exponentor<br /> {<br /> public:<br />     Exponentor(void);<br />     ~Exponentor(void);<br />     //Exponentor operator ^ (int num1);<br />     //Exponentor operator ^ (Exponentor&#038;);<br />     Exponentor operator^(int num1);<br />     int iLeftNum;<br />     int iRightNum;<br />     int iResult; // no private vars required...<br /> };<br /> This is the code:<br /> #include "exponentor.h"<br /> <br /> Exponentor::Exponentor(void)<br /> {<br /> iResult=0;<br /> iLeftNum=0;<br /> iRightNum=0;<br /> }<br /> <br /> Exponentor::~Exponentor(void)<br /> {<br /> }<br /> <br /> void main() {<br />     Exponentor Exponent;<br />     cout << "Welcome to Exponentor the exponent test programme!n";<br />     cout << "**************************************************n";<br />     int iRightNumber;<br />     cout << "Hello, please give me the left operand:";<br />     cin >> iRightNumber;<br />     cout << "nand now please give me the right operand:";<br />     int iAnyNumber;<br />     cin >> iAnyNumber;<br />     Exponent.iResult=iRightNumber ^ iAnyNumber;<br />     cout << "nThe result of  " <<<br /> Exponent.iLeftNum << " raised to " << iAnyNumber << "<br /> is:" << Exponent.iResult << endl;<br /> <br />     }<br /> //Exponentor operator^(int num1);<br /> Exponentor Exponentor::operator^(int num1)<br /> {<br />     cout << "In the function";<br /> <br />     return *this;<br /> }<br /> </string></iostream>

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#pragma once<br /> #include <iostream><br /> #include <string><br /> using namespace std;<br /> class Exponentor<br /> {<br /> public:<br />     Exponentor(void);<br />     ~Exponentor(void);<br />     //Exponentor operator ^ (int num1);<br />     //Exponentor operator ^ (Exponentor&#038;);<br />     Exponentor operator^(int num1);<br />     int iLeftNum;<br />     int iRightNum;<br />     int iResult; // no private vars required...<br /> };<br /> This is the code:<br /> #include "exponentor.h"<br /> <br /> Exponentor::Exponentor(void)<br /> {<br /> iResult=0;<br /> iLeftNum=0;<br /> iRightNum=0;<br /> }<br /> <br /> Exponentor::~Exponentor(void)<br /> {<br /> }<br /> <br /> void main() {<br />     Exponentor Exponent;<br />     cout << "Welcome to Exponentor the exponent test programme!n";<br />     cout << "**************************************************n";<br />     int iRightNumber;<br />     cout << "Hello, please give me the left operand:";<br />     cin >> iRightNumber;<br />     cout << "nand now please give me the right operand:";<br />     int iAnyNumber;<br />     cin >> iAnyNumber;<br />     Exponent.iResult=iRightNumber ^ iAnyNumber;<br />     cout << "nThe result of  " <<<br /> Exponent.iLeftNum << " raised to " << iAnyNumber << "<br /> is:" << Exponent.iResult << endl;<br /> <br />     }<br /> //Exponentor operator^(int num1);<br /> Exponentor Exponentor::operator^(int num1)<br /> {<br />     cout << "In the function";<br /> <br />     return *this;<br /> }<br /> </string></iostream>

Thanks in advance

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