Complex Operations using Operator Overloading

Write a C++ Program for Complex Operations using Operator Overloading. Here’s a Simple C++ Program for Complex Arithmetic Operations using Operator Overloading in C++ Programming Language.

What is Overloading in C++ ?

C++ allows you to specify more than one definition for a function name or an operator in the same scope, which is called function overloading and operator overloading respectively.

Function overloading : :

You can have multiple definitions for the same function name in the same scope. The definition of the function must differ from each other by the types and/or the number of arguments in the argument list. You can not overload function declarations that differ only by return type.

Operators overloading : :

You can redefine or overload most of the built-in operators available in C++. Thus a programmer can use operators with user-defined types as well.

Overloaded operators are functions with special names the keyword operator followed by the symbol for the operator being defined. Like any other function, an overloaded operator has a return type and a parameter list.

Below is the source code for C++ Program for Complex Operations using Operator Overloading which is successfully compiled and run on Windows System to produce desired output as shown below :

SOURCE CODE : :

/*  C++ Program for Complex Operations using Operator Overloading */

#include<iostream>
#include<stdio.h>
using namespace std;
class complex
{
        int real;
        float image;
        public:
        void getdata()
        {
                cout<<"\n enter the real part of the complex :: ";
                cin>>real;
                cout<<"\n enter the imaginary part of the complex :: ";
                cin>>image;
        }
        void operator + (complex);
        void operator - (complex);
};

void complex :: operator +  (complex c1)
{
        complex temp;
        temp.real=real+c1.real;
        temp.image=image+c1.image;
        if (temp.image>=0)
        {
                cout<<"\n complex no. after addition :: ";
                cout<<temp.real<<"+"<<temp.image<<"i\n";
        }
        else
        {
                cout<<"\n complex no. after addition :: ";
                cout<<temp.real<<temp.image<<"i\n";
        }
}
void complex ::operator-(complex c1)
{
        complex temp;
        temp.real = real-c1.image;
        temp.image= image-c1.image;
        if (temp.image>=0)
        {
                cout<<"\n complex no. after subtraction :: ";
                cout<<"\n temp.real"<<"+"<<temp.image<<"i\n";
        }
        else
        {
                cout<<"\n complex no. after subtraction :: ";
                cout<<temp.real<<temp.image<<"i\n";
    }
}
int main()
{

        complex c1, c2;
        int n;
        do
        {
                cout<<"\n 1. Input data for complex no. ";
                cout<<"\n 2. Addition of complex no. ";
                cout<<"\n 3. Subtraction of complex no. ";
                cout<<"\n 4. Quit";
                cout<<"\n Enter your choice :: ";
                cin>>n;
                switch(n)

                {
                         case 1:
                         cout<<endl<<"\n Enter the data for First Complex No......";
                         c1.getdata();
                         cout<<endl<<"\n Enter the data for seconds Complex No.....";
                         c2.getdata();

                         break;

                         case 2:
                         c1+c2;

                         break;

                         case 3:
                         c1-c2;

                         break;

                         case 4:
                         exit(1);
                         break;
                        }
                } while (n!=4);
     return 0;
}

OUTPUT : :

/*  C++ Program for Complex Operations using Operator Overloading */

 1. Input data for complex no.
 2. Addition of complex no.
 3. Subtraction of complex no.
 4. Quit
 Enter your choice :: 1


 Enter the data for First Complex No......
 enter the real part of the complex :: 2

 enter the imaginary part of the complex :: 3


 Enter the data for seconds Complex No.....
 enter the real part of the complex :: 4

 enter the imaginary part of the complex :: 5

 1. Input data for complex no.
 2. Addition of complex no.
 3. Subtraction of complex no.
 4. Quit
 Enter your choice :: 2

 complex no. after addition :: 6+8i

 1. Input data for complex no.
 2. Addition of complex no.
 3. Subtraction of complex no.
 4. Quit
 Enter your choice :: 3

 complex no. after subtraction :: -3-2i

 1. Input data for complex no.
 2. Addition of complex no.
 3. Subtraction of complex no.
 4. Quit
 Enter your choice :: 4

Process returned 1

Above is the source code and output for C++ Program for Complex Operations using Operator Overloading which is successfully compiled and run on Windows System to produce desired output.

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