oops3_b

#include<iostream.h>
void swap(int *,int *);
void swap(float *,float *);
void swap(char *,char *);

int main()
{
    int a,b,c;
    float x,y;
    char p,q;
    cout<<"enter a choice\n";
    cout<<"1.To swap two integers\n";
    cout<<"2.To swap of two floats\n";
    cout<<"3.To swap of two characters\n";
    cin>>a;
    switch(a)
    {
    case 1:
        cout<<"enter two inegers:\n";
        cin>>b>>c;
        cout<<"value before swapping b= "<<b<<" c= "<<c<<endl;
        swap(&b,&c);
        cout<<"value after swapping b= "<<b<<" c= "<<c<<endl;
        break;

    case 2:
        cout<<"enter two floating point numbers:\n";
        cin>>x>>y;
        cout<<"value before swapping x= "<<x<<" y= "<<y<<endl;
        swap(&x,&y);
        cout<<"value after swapping x= "<<x<<" y= "<<y<<endl;
        break;

    case 3:
        cout<<"enter two characters:\n";
        cin>>p>>q;
        cout<<"value before swapping p= "<<p<<" q= "<<q<<endl;
        swap(&p,&q);
        cout<<"value after swapping p= "<<p<<" q= "<<q<<endl;
        break;

    default:
        cout<<"invalod operator\n";
        break;
    }
    return 0;
}


void swap(int *a,int *b)
{
    *a=*a+*b;
    *b=*a-*b;
    *a=*a-*b;
}

void swap(float *a,float *b)
{
    *a=*a+*b;
    *b=*a-*b;
    *a=*a-*b;
}

void swap(char *a,char *b)
{
    *a=*a+*b;
    *b=*a-*b;
    *a=*a-*b;
}
 OUTPUT:
enter a choice
1.To swap two integers
2.To swap of two floats
3.To swap of two characters
1
enter two inegers:
75
84
value before swapping b= 75 c= 84
value after swapping b= 84 c= 75
Press any key to continue

enter a choice
1.To swap two integers
2.To swap of two floats
3.To swap of two characters
2
enter two floating point numbers:
42.6
15.4
value before swapping x= 42.6 y= 15.4
value after swapping x= 15.4 y= 42.6
Press any key to continue

enter a choice
1.To swap two integers
2.To swap of two floats
3.To swap of two characters
3
enter two characters:
f
h
value before swapping p= f q= h
value after swapping p= h q= f
Press any key to continue