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Operator Overloading on String Functions C++ Language

April 5, 2011 by ProjectsGeek Leave a Comment

Operator Overloading on String Functions C++ Language

Write a program to perform Operator Overloading on String Functions using C++ Language . String Operations like

  • Input String
  • Concatenation String
  • Reverse String
  • Display String
  • Equality String
  • String Copy

 All these Functions should be implemented by Operator Overloading on String Functions C++ Language .

  Operator Overloading on String Functions Code

 #include  
 #include  
 #include  
 #include  
 class sub;  
 class overlod  
 {  
   char *p;  
   int len;  
   public:  
   overlod()  
   {  
     len=0;  
     p=new char[20];  
   }  
   overlod(char *s)  
   {  
     len=strlen(s);  
     p=new char[len+1];  
   }  
   void input()  
   {  
     cout<<"\nENTER THE STRING";  
     cin>>p;  
   }  
   void operator<<(overlod s1)  
   {  
     cout<<s1.p; <br="">     getch();  
   }  
   friend overlod operator+(overlod &s,overlod &t)  
     {  
       overlod temp;  
       temp.len=s.len+t.len;  
       temp.p=new char[temp.len+1];  
       strcpy(temp.p,s.p);  
       strcat(temp.p,t.p);  
       return temp;  
     }  
   int operator=(overlod s2)  
   {  
     int i;  
     i=strcmp(p,s2.p);  
     return i;  
   }  
   void operator==(overlod s3)  
   {  
     len=strlen(s3.p);  
     p=new char[len+1];  
     strcpy(p,s3.p);  
   }  
   void operator>>(overlod s1)  
   {  
     strrev(s1.p);  
     cout<<s1.p; <br="">     getch();  
     strrev(s1.p);  
   }  
   int operator -()  
   {  
     int i=0,j;  
     j=strlen(p)-1;  
     for(i=0;i<=j;i++,j--)  
     {  
         if((*(p+i))!=(*(p+j)))  
           return 0;  
     }  
     return 1;  
   }  
 };  
 void main(void)  
 {  
   overlod s1,s2,s3;  
   int ch,i;  
   do  
   {  
     clrscr();  
     cout<<"\nSTRING OPERATION"<<"\n1.INPUT"<<"\n2.CONCATENATION"<<"\n3.REVERSE"<<"\n4.DISPLAY STRING"<<"\n5.EQUALITY"<<"\n6.STRING COPY"<<"\n7.PALLINDROME"<<"\n8.EXIT";  
     cout<<"\n ENTER UR CHOICE";  
     cin>>ch;  
     clrscr;  
     switch(ch)  
     {  
       case 1:  
         cout<<"\ninput";  
         s1.input();  
         s2.input();  
         break;  
       case 2:  
         cout<<"\nCONCATENATION OF STRING1 & STRING2 IS:";  
         s1<<s1+s2; <br="">         break;  
       case 3:  
         cout<<"\nREVERSE STRING OF STRING IS:";  
         s2>>s1;  
         break;  
       case 4:  
         cout<<"\nDISPLAYING STRING";  
         s2<<s1; <br="">         break;  
       case 5:  
         i=(s1=s2);  
         if(i!=0)  
           cout<<"NOT EQUAL";  
         else  
           cout<<"EQUAL";  
         getch();  
         break;  
       case 6:  
         cout<<"\nCOPIED STRING IS:";  
         s3==s1;  
         s2<<s3; <br="">         break;  
       case 7:  
         i=-s1;  
         if(i!=0)  
           cout<<"\nSTRING IS PALINDROME";  
         else  
           cout<<"\nSTRING IS NOT PALINDROME";  
         getch();  
         break;  
       case 8:break;  
       default:  
         cout<<"\nINVALID CHOICE";  
     }  
   }while(ch!=8);  
 }

 

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Filed Under: Computer Graphics Tagged With: Computer Graphics

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