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operator_overloading_part3.cpp
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operator_overloading_part3.cpp
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/* Using of Pre and post increment or decrement operator as a function name
simontaneously in a program is known as operator overloading (of uniary operator)*/
//operator overloading is a way of implementing compile time polymorphism
// a program to show how we can use a same operator as a function name for two different jobs or task.
#include<iostream>
using namespace std;
class complex
{
int a,b;
public:
complex()
{
a=0;
b=0;
}
void insert(int i,int j)
{
a=i;
b=j;
}
complex operator++()
{
complex temp;
temp.a=++a;
temp.b=++b;
return temp;
}
complex operator++(int) //for post increment or decrement we have to pass an integer argument so that the compiler can differenciate between post and pre operator call
{
complex temp;
temp.a=a++;
temp.b=b++;
return temp;
}
void showdata1()
{
cout<<"Numbers saved in another object just after pre increment\n";
cout<<"a= "<<a<<"\nb= "<<b<<endl;
}
void showdata2()
{
cout<<"Numbers saved in another object just after post increment\n";
cout<<"a= "<<a<<"\nb= "<<b<<endl;
}
void showdata3()
{
cout<<"printing values of Actual numbers after pre increment\n";
cout<<"a= "<<a<<"\nb= "<<b<<endl;
}
void showdata4()
{
cout<<"printing values of Actual numbers just after post increment\n";
cout<<"a= "<<a<<"\nb= "<<b<<endl;
}
};
int main()
{
int a,b;
cout<<"Enter two numbers\n";
cin>>a>>b;
complex c1,c2,c3,c4;
c1.insert(a,b);
c2.insert(a,b);
c3=++c1;
c4=c2++;
c3.showdata1();
c4.showdata2();
c1.showdata3();
c2.showdata4();
return 0;
}