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Home » C++ » Classes » Write A C++ Program Using A Friend to Overload ++ or – –
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Write A C++ Program Using A Friend to Overload ++ or – –

By Dinesh Thakur

#include <iostream.h> 
#include<conio.h>
class Values
{
        int a,b;
                 public:
                            Values() {}
                            Values(int aa,int bb)
                         {
                            a=aa;
                            b=bb;
                         }
                            void show()
                        {
                             cout <<a <<" ";
                             cout <<b <<"\n";
                         }
                            Values operator=(Values p2);
                            friend Values operator++(Values &p);
                            friend Values operator-(Values &p);
};
                           Values Values::operator=(Values p2)
            {
                           a =p2.a;
                           b =p2.b;
                           return *this;
                 }
                          //friend;use a reference.
                          Values operator++(Values &p)
                 {
                           p.a++;
                           p.b++;
                           return p;
                 }
                           //lip- a friend;use reference
                           Values operator-(Values &p)
                {
                            p.a--;
                            p.b--;
                            return p;
                 }
                            void main()
        {
                            clrscr();
                            Values v1 (20,30),v2;
                            v1.show(); 
                            ++v1;
                            v1.show();
                            v2 =++v1 ;
                            v2.show();
                            -v2;
                             v2.show();
                             getch();
         }

Overload ++ or - -

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  1. Write A C++ Program To Overload The Constructor.
  2. Write A C++ Program To Overload Member Function Of A Class.
  3. Write a C++ program for friend operator.
  4. Write a C++ program to Make op-, ++, = a friend; use reference.
  5. Write a C++ program to Operator Overloading Using a Friend Function.
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About Dinesh Thakur
Dinesh ThakurDinesh Thakur holds an B.C.A, MCDBA, MCSD certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps.

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