Write a program in which a function is passed address of two variables and then alter its contents.

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#include<iostream.h>

#include<conio.h>

class alter

{

public:

void altering(double *a,double *b);

};

void alter::altering(double *a,double *b)

{

cout<<"Altering in function altering of alter class a to 0 and b to 2 "<<endl;

*a=0;

*b=2;

}

void main()

{

clrscr();

double a,b;

alter obj;

cout<<"enter the value of a "<<endl;

cin>>a;

cout<<"enter the value of b"<<endl;

cin>>b;

obj.altering(&a,&b);

cout<<"IN MAIN FUNCTION THE VALUES ARE"<<endl<<"a is "<<a<<endl<<"b is "<<b<<endl;

getch();

}

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Output:-