C++ Tutorial/Operator Overloading/overload with friend function

friend operator

<source lang="cpp">#include <iostream.h> class Num {

      friend Num operator+(Num ob, int i);
      friend Num operator+(int i, Num ob);
      int count;

public:

      Num(int cc=0){
          count=cc;
   }
      Num& operator=(int i);
   void Show(){
       cout <<count<<endl;
   }

}; Num& Num::operator=(int i){

   count=i;  
   return *this;

} Num operator+(Num ob, int i) // This handles ob+int. {

   Num temp;  
   temp.count=ob.count+i;  
   return temp;

} Num operator+(int i, Num ob) // This handles int+ob. {

   Num temp;  
   temp.count=ob.count+i;  
   return temp;

} main(void) {

      Num obj;
      obj=10;
      obj.Show();     
      obj=10+obj;     
      obj.Show();     
      obj=obj+12;     
      obj.Show();     
      return 0;

}</source>

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