Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
C++ program to implement a Complex Class and make use of operator overloading:
#include<iostream>
#include<cmath>
using namespace std;
class cmplx{
float real,img;
public:
cmplx();
cmplx operator +(cmplx a);
cmplx operator -(cmplx a);
void operator =(cmplx a);
cmplx* operator ->();
float operator [](int index);
void operator ()(float a,float b);
void display();
friend istream& operator >>(istream &inp,cmplx &a){
inp>>a.real>>a.img;
return inp;
}
friend ostream& operator <<(ostream &out,cmplx &a){
if(a.img>=0){
out<<a.real<<" + "<<a.img<<" i"<<endl;
}
else{
out<<a.real<<" - "<<abs(a.img)<<" i"<<endl;
}
}
};
cmplx::cmplx(){
real=0;
img=0;
}
cmplx cmplx:: operator +(cmplx a){
cmplx t;
t.real=real+a.real;
t.img=img+a.img;
return t;
}
cmplx cmplx:: operator -(cmplx a){
cmplx t;
t.real=real-a.real;
t.img=img-a.img;
return t;
}
float cmplx::operator[](int index){
if(index==1){
return real;
}
else if(index==2){
return img;
}
}
void cmplx::operator ()(float a,float b){
real=a;
img=b;
}
void cmplx::operator =(cmplx a){
real=a.real;
img=a.img;
}
cmplx* cmplx::operator ->(){
return this;
}
void cmplx::display(){
if(img>=0){
cout<<real<<" + "<<img<<" i"<<endl;
}
else{
cout<<real<<" - "<<abs(img)<<" i"<<endl;
}
}
int main()
{
cmplx a,b,c;
float x,y;
cout<<"Choice : 1) Addition 2) Subtraction 3) Initialization using function call operator 4) Exit";
int ch;
while(1){
cout<<"\nEnter your choice..";
cin>>ch;
if(ch==1){
cout<<"Enter the real and imaginary part of the first complex number..";
cin>>a;
cout<<"Enter the real and imaginary part of the second complex number..";
cin>>b;
c=a+b;
cout<<"The added complex number is ";
cout<<c;
}
else if(ch==2){
cout<<"Enter the real and imaginary part of the first complex number..";
cin>>a;
cout<<"Enter the real and imaginary part of the second complex number..";
cin>>b;
c=a-b;
cout<<"The resultant complex number is ";
if(c[2]>=0){
cout<<c[1]<<" + "<<c[2]<<" i";
}
else{
cout<<c[1]<<" - "<<abs(c[2])<<" i";
}
cout<<endl;
}
else if(ch==3){
cout<<"Enter the real and imaginary part of the complex number..";
cin>>x>>y;
a(x,y);
b=a;
b->display();
}
else{
break;
}
}
return 0;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.