Insertion Overload Example in C++


Description:

C++ is able to input and output the built-in data types using the stream extraction operator >> and the stream insertion operator <<. The stream insertion and stream extraction operators also can be overloaded to perform input and output for user-defined types like an object.

Example Program:

Here is the simple program using insertion overloading in C++.

Source Code

#include<iostream>
using namespace std;
class Complex
{
public :
    int real;
    int img;
    friend ostream & operator << (ostream &o,Complex &c1);
};
ostream & operator << (ostream &o,Complex &c1)
{
    o<<c1.real<<"+i"<<c1.img;
    return o;
}
int main()
{
    Complex c1;
    c1.real=5;
    c1.img=3;
    cout<<c1;
    operator<<(cout,c1);
    return 0;
}
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Output

5+i35+i3

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